GAC Services https://gacservices.com Trusted HVAC, Electrical, & Plumbing Services in Maryland Wed, 01 Oct 2025 00:03:42 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://gacservices.com/wp-content/uploads/2021/05/GAC_vector_logo_color.svg GAC Services https://gacservices.com 32 32 Why Does My Basement Smell Like Sewage? https://gacservices.com/blog/why-does-my-basement-smell-like-sewage/ Wed, 01 Oct 2025 00:03:39 +0000 https://gacservices.com/?p=16183 You head downstairs and the smell hits you. It’s sharp, sour, and impossible to ignore. Basements can get musty on their own, but this is different. A sewage odor almost always means something in the plumbing isn’t working right. Sometimes it’s nothing more than a drain that dried out. Other times it’s a crack in […]

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You head downstairs and the smell hits you. It’s sharp, sour, and impossible to ignore. Basements can get musty on their own, but this is different. A sewage odor almost always means something in the plumbing isn’t working right. Sometimes it’s nothing more than a drain that dried out. Other times it’s a crack in a pipe or a backup that’s starting to build pressure. Whatever the case, that smell is a warning that gases or wastewater are getting into your home where they don’t belong.

smelling a bad smell

What Usually Causes the Smell

In homes around Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties, we see the same handful of problems. Some basements are old, with pipes that have been in the ground for decades. Others rely on pumps and vents that fail at the worst time.

A dry floor drain is one of the simplest causes. The trap under the drain is supposed to hold water and block gases. When it dries out, the smell slips right through. It happens a lot in corners of the basement that don’t get much use, or after you’ve been away on vacation.

Cracked or leaking sewer lines are another big one. Pipes under the slab shift, roots work their way in, or the line just wears out with age. You may never see water on the floor, but the odor works its way up through hairline cracks in the concrete.

Clogs cause trouble too. Basements collect everything from lint off laundry to dirt from outside. That gunk settles in the floor drain, water stagnates, and the smell follows.

Sometimes it’s not a slow problem at all but a backup. When the main sewer line clogs, pressure pushes waste back toward the house. The basement is the first place to notice. Most families smell it before they ever see water rising.

And don’t forget about pumps and vents. A loose pump lid, a sump that can’t keep up, or a vent stack outside that’s blocked with leaves or frozen over can all let gases drift inside.

Why It Matters

It’s tempting to ignore the smell and hope it clears out. The problem is, it usually doesn’t. Sewer gases often carry methane, ammonia, and other compounds that can cause headaches or nausea, especially in a closed basement. If there’s a leak, the moisture that comes with it feeds mold. Once mold takes hold, it spreads fast across concrete, wood, or cardboard boxes you’ve got stored down there. Kids, older adults, and anyone with breathing issues notice the effects first. Even pets are at risk since they spend time close to the floor where the odor is strongest.

Quick Checks You Can Try

Not every fix needs a plumber right away. There are a few things you can look at yourself:

Pour some water into any floor drains you don’t use often. That refills the trap and blocks gases. A splash of mineral oil on top helps slow down evaporation.

Take a look at your sump pump or ejector pump. The lid should be tight, and the pump should cycle on and off without odd noises.

Walk the basement with a flashlight. Even a small puddle along the wall or near a drain can be the start of something bigger.

Test your drains upstairs. Run water in sinks or tubs that connect to the basement line. If they’re slow, the clog might be deeper in the system.

If the smell fades after that, you’ve probably handled the small stuff. If it comes right back, that points to a bigger issue.

When It’s Time to Call a Plumber

Some problems just aren’t DIY. Call for professional help if the odor doesn’t go away, if you ever see sewage backing up, or if cracks in the basement floor smell foul. Wet patches in the yard that don’t dry out can also point to a broken line underground.

Plumbers have tools homeowners don’t, like sewer cameras, high-pressure jetting equipment, and detectors that track leaks without tearing up the floor. At GAC Services, we’ve worked on everything from century-old houses in Carroll County to flood-prone basements in Anne Arundel. We know how to trace the smell to its source and fix it at the root.

Keeping the Smell From Coming Back

Once the odor is gone, prevention is the next step. A few habits make a difference: schedule a plumbing inspection once a year, keep drains clear with routine cleaning, and test sump pumps before storm season so you know they’re ready. Sealing cracks in walls and floors also helps keep water and gases out.

These steps don’t just prevent odors. They protect the basement from moisture damage and help keep the whole house healthier.

Technician shaking customer's hand

Protect Your Home with Expert Plumbing Help

A sewage smell in the basement is never normal. It might be a dry trap, or it could be a cracked pipe or a backup building pressure. The sooner you deal with it, the less chance it has to spread, damage the house, or affect your family’s health.

If your basement smells like sewage and it isn’t clearing up, call GAC Services. We help homeowners across Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties with plumbing repairs and solutions that last.

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How to Change Thermostat Batteries https://gacservices.com/blog/how-to-change-thermostat-batteries/ Tue, 30 Sep 2025 23:30:45 +0000 https://gacservices.com/?p=16162 Most people do not think about the thermostat until it stops doing its job. Usually it’s as simple as the batteries have run out. The good news is that replacing them is quick and something you can do yourself. A thermostat running on weak batteries can shut down your heating on a January night in […]

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Most people do not think about the thermostat until it stops doing its job. Usually it’s as simple as the batteries have run out. The good news is that replacing them is quick and something you can do yourself. A thermostat running on weak batteries can shut down your heating on a January night in Montgomery County or leave you sweating through a July afternoon in Anne Arundel. Swapping batteries once a year helps you avoid surprises.

Signs Your Thermostat Batteries Need to Be Replaced

Before a thermostat quits, it usually shows a few hints. You might notice:

  • The screen fading or going dark
  • A low-battery message blinking on the display
  • The system not kicking on when you adjust the temperature

 

If you spot one of these signs, checking the batteries is the first step.

What You’ll Need

This job doesn’t take much. Just:

  • Fresh batteries (AA, AAA, or the type listed in your manual)
  • A small screwdriver if your model has screws holding the cover

 

THAT’S IT!!

Man adjusting the thermostat

How to Replace Thermostat Batteries

Here’s the basic process most thermostats follow:

  1. Turn off the system if your manual suggests it. Some don’t require this step.
  2. Remove the cover. Many pop off with light pressure. If not, look for clips or screws.
  3. Take out the old batteries. Pay attention to how they’re lined up.
  4. Put in the new ones. Match the plus and minus symbols to the markings inside.
  5. Snap the cover back on and test. The screen should light up and the system should respond.

 

You have just replaced your batteries.

Notes on Popular Models

Not every thermostat handles batteries the same way. A few quick tips:

  • Honeywell: Most take AA or AAA. The compartment is either behind the cover or in a slide-out tray.
  • Nest: Many Nest models charge through your HVAC system and don’t need manual battery changes. Some have a small backup battery that needs recharging with a USB cable if the main power is out. Knowing which version you own can save you from worrying when the screen goes dark.
  • Ecobee: These are usually hardwired to your home’s electrical system. Some include a backup battery that preserves settings during an outage. If that backup fails, the thermostat may reset unexpectedly.

 

If you’re not sure which you have, check the manual or look up the model number online.

Easy Maintenance Habits

It’s easy to forget about thermostat batteries until they die. A few habits can help:

  • Change them once a year, like when you swap smoke detector batteries
  • Keep extras in a drawer so you’re not caught off guard
  • Have GAC Services check the thermostat during your yearly heating or cooling tune-up

 

Maryland homes work HVAC systems hard through humid summers and chilly winters, which makes small maintenance steps even more important. Combining a quick battery swap with a seasonal tune-up means you’re less likely to deal with sudden breakdowns when the system is under heavy use.

When to Call a Professional

If the thermostat still doesn’t work after new batteries, there’s probably another problem. Call for help if:

  • The screen stays blank
  • The system won’t respond even though the display lights up
  • Wires inside look loose or damaged
  • You’re interested in upgrading to a smart thermostat like a Nest thermostat

 

At that point, a technician can check the wiring, replace the unit, or set up a new thermostat that works better for your home.

GAC technician going over maintenance plans with customer

GAC Services Keeps Maryland Homes Comfortable

Thermostat batteries are small but important. Replacing them once a year keeps your system running and saves you the headache of losing heat in the winter or cooling in the summer.

If fresh batteries don’t solve the problem, or if you’re ready for an upgrade, GAC Services can help. We serve Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties with trusted HVAC service. Call today to schedule an appointment online and keep your home comfortable year-round.

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How to Remove Hard Water Deposits https://gacservices.com/blog/how-to-remove-hard-water-deposits/ Tue, 30 Sep 2025 22:48:49 +0000 https://gacservices.com/?p=16150 If you’ve noticed chalky white crust on your faucets, cloudy glass shower doors, or rings in your toilet that never seem to scrub away, you’re looking at hard water deposits. They come from calcium and magnesium in the water. The minerals themselves are harmless, but once they dry on surfaces they leave a tough residue […]

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If you’ve noticed chalky white crust on your faucets, cloudy glass shower doors, or rings in your toilet that never seem to scrub away, you’re looking at hard water deposits. They come from calcium and magnesium in the water. The minerals themselves are harmless, but once they dry on surfaces they leave a tough residue that can clog fixtures and wear out appliances.

In Maryland, especially in Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties, hard water is just part of daily life. The water is safe, but without some extra care it makes cleaning harder and shortens the life of your plumbing.

Why Hard Water Builds Up

Hard water happens when your supply carries a high amount of dissolved minerals. Every time water evaporates, the minerals stay behind. Over days and weeks, that light film turns into scale you can’t wipe off. Maryland’s water supply has enough mineral content that just about every homeowner here runs into it at some point.

Where You’ll See It

The bathroom is usually the first place. Showerheads start spraying unevenly because the holes get crusted shut. Faucets lose water pressure. Toilets build that ring around the bowl. Over in the kitchen, glassware looks spotty no matter how well the dishwasher runs. Even washing machines start to lose efficiency when minerals settle inside. If you’ve lived here a while, you’ve probably noticed all of it firsthand.

GAC Services Technician Water running faucet

Cleaning Hard Water the Easy Way

The good news is you don’t need anything fancy to clean most deposits. Vinegar is the go-to. Baking soda helps when you need extra scrubbing power, and lemon juice can lift tougher stains.

For faucets or showerheads, the bag trick works best. Fill a plastic bag with vinegar, tie it around the fixture so it’s submerged, and leave it a few hours. Once you pull it off, a quick scrub usually clears the rest.

Sinks and toilets respond well to a mix of baking soda and vinegar. Sprinkle the baking soda, pour on the vinegar, let it fizz, then scrub and rinse. It won’t fix years of buildup overnight, but it handles most rings and stains.

Appliances take a little more effort. In the dishwasher, put a cup of vinegar on the top rack and run a hot cycle. In the washer, pour a couple cups straight into the drum and run hot with no clothes. If it’s really bad, you may need a descaling cleaner from the store.

Glass shower doors are the one that frustrates most folks. A spray of half vinegar and half water, left to sit a few minutes, usually cuts through the haze. The trick is drying the glass after so the spots don’t return right away.

Keeping Deposits From Coming Back

The fastest way to fight hard water is to wipe things down before they dry. It takes an extra minute after a shower, but it saves you from scrubbing later. A quick vinegar spray once a week keeps buildup light.

For a longer-term fix, a water softener makes the biggest difference. By filtering out minerals before they move through your plumbing, it cuts down the deposits that form on fixtures and inside appliances. A softener also helps water heaters, dishwashers, and laundry machines last longer.

When DIY Isn’t Enough

Sometimes deposits get past the point of vinegar and scrubbing. If your showerhead barely sprays, or the stains come back as fast as you clean them, that’s when it’s time to call in help.

At GAC Services, we clear fixtures, restore water flow, and install water treatment systems that tackle the problem at the source. Families across Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties rely on us for both quick cleanups and long-term solutions.

AC Replacement technician team - GAC

Clear Water, Clear Fixtures

Hard water deposits are frustrating, but you don’t have to live with them. Simple habits keep them under control, and professional treatment makes a permanent difference.

If you’re ready to get ahead of hard water in your home, call us. Whether it’s clearing clogged fixtures or setting up a water softener, we’ll help you keep your plumbing in shape and your home running smoothly.

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What Size Generator Do I Need for My House? https://gacservices.com/blog/what-size-generator-do-i-need-for-my-house/ Tue, 30 Sep 2025 22:10:40 +0000 https://gacservices.com/?p=16128 In Maryland, the power goes out often enough that most families think about backup power at some point. Summer storms knock out service in Montgomery County, winter ice brings lines down in Frederick or Carroll, and demand on the grid can leave homes in Prince George’s or Anne Arundel in the dark. When the power […]

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In Maryland, the power goes out often enough that most families think about backup power at some point. Summer storms knock out service in Montgomery County, winter ice brings lines down in Frederick or Carroll, and demand on the grid can leave homes in Prince George’s or Anne Arundel in the dark. When the power cuts, the fridge warms, the sump pump stops, and the furnace fan sits silent. That is when the question comes up: What size generator do I need for my house?

The answer is not the same for everyone. A smaller generator may handle a few basics. A larger system can keep the entire house running. The goal is to size it so it does the job without being more machine than you need.

Why Generator Size Matters

The wrong size causes problems. Too small, and the unit struggles. Breakers trip, appliances stall, and motors can wear out. Too big, and you have spent money you did not need to and will burn more fuel than required.

Getting the size right means balance. Enough to cover your essentials, but not more than your load calls for. That way, when the next storm hits Howard County or a blackout rolls through Carroll County, you know your backup will work.

Generator and house

Portable vs Standby Generators

Most homeowners look at two options.

  1. Portable generators cost less and can get you through a short outage. You bring them outside, fuel them, and run cords to the fridge, a few lights, or a sump pump. They work, but they take effort every time and are not meant to run for days on end.
  2. Standby generators stay outside the house and connect to natural gas or propane. They turn on automatically when the grid fails. A good standby system can power the whole home, including air conditioning. They cost more up front but require little effort once installed and are reliable for long outages.

How to Calculate Your Power Needs

You can get a rough idea of the size you need with a few simple steps.

Step 1: List what matters most.

Think about what you cannot lose in an outage:

  • Refrigerator and freezer
  • Furnace fan or heating system
  • Sump pump or ejector pump
  • Main lights
  • Medical equipment
  • Air conditioning or window units

Step 2: Find the wattage.

Check labels or manuals. A fridge usually runs on about 700 watts. A sump pump may be closer to 1,000. Lights are less but add up.

Step 3: Remember startup power.

Anything with a motor needs more to start than to run. That same fridge that runs at 700 watts may need over 2,000 for a few seconds when it kicks on. Pumps and air conditioners are the same way.

Step 4: Add it up.

Combine your running watts and startup watts, then add an extra 10 to 20 percent as a cushion. That way if two big appliances start at the same time, the generator will not trip.

This gives you a working number. For an exact match, it is worth having an electrician run the numbers and make sure you get the best generator for home backup power.

Common Generator Sizes for Homes

Most homes in Maryland fit into one of three ranges.

5,000–7,000 watts
Enough for basics like the fridge, sump pump, lights, and a few outlets.

7,000–10,000 watts
Can handle most appliances, including HVAC in smaller homes.

10,000–20,000+ watts
Whole-house coverage. Runs central air, large appliances, and keeps everything powered.

The right size depends on the house and the priorities. A family in Howard County may choose a mid-sized unit for essentials. A larger home in Prince George’s County may decide on a standby system that covers every circuit.

Professional Sizing and Installation

Online tools help, but they do not replace a professional look at your home. Licensed electricians make sure the system is matched to your load, tied into your panel safely, and meets local codes. Professional installation also means:

  • A proper transfer switch so power flows safely
  • Gas or propane hookups set up to run as long as needed
  • Systems installed to last and easy to maintain
  • Options like load-shedding that ease startup demand

 

GAC Services has installed generators for families across Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties for decades. We know the common outage issues in each area and match systems that fit the homes we work in.

AC Replacement technician team - GAC

Why Professional Help Matters

A generator is more than a piece of equipment. It is what keeps your home running when the grid fails. Getting the size right and installing it safely means your family has power when it counts.

If you are asking what size generator you need for your house, call GAC Services. We handle home generator sizing, installation, and support for homeowners across Montgomery, Frederick, Howard, Carroll, Anne Arundel, and Prince George’s counties.

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Common Electrical Hazards Found in Older Homes   https://gacservices.com/blog/common-electrical-hazards-found-in-older-homes/ Thu, 21 Aug 2025 16:47:38 +0000 https://gacservices.com/?p=16090 Older homes in Gaithersburg, MD and throughout Montgomery County bring unique charm and history, but they often come with outdated electrical systems that pose safety risks. Electrical hazards in older homes should never be ignored, as they can lead to fire hazards, power failures, and costly repairs. Whether you live in a historic property or […]

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Older homes in Gaithersburg, MD and throughout Montgomery County bring unique charm and history, but they often come with outdated electrical systems that pose safety risks. Electrical hazards in older homes should never be ignored, as they can lead to fire hazards, power failures, and costly repairs. Whether you live in a historic property or a house built several decades ago, knowing the risks and taking action is essential for home electrical safety. 

Common Electrical Hazards in Older Homes 

Even well-maintained homes can have electrical systems that no longer meet modern safety standards. Over time, components wear out, demand for electricity increases, and older systems simply can’t keep up with today’s appliances and technology. 

Typical electrical hazards in older homes include: 

  • Outdated wiring: Many older homes still rely on knob-and-tube or aluminum wiring, which are not designed to handle today’s electrical loads. These systems are prone to overheating and should be replaced to meet current standards. 
  • Overloaded circuits: Decades ago, homes were built with fewer circuits. Today’s households use multiple TVs, computers, and high-energy appliances, often overloading circuits and creating tripping hazards. 
  • Lack of proper grounding: Grounding provides a safe path for excess electricity. Without it, the risk of shock or fire increases significantly. 
  • Exposed electrical connections: Loose wires, uncovered junction boxes, or damaged outlets expose homeowners to shock and spark risks. 

 

Recognizing these common hazards is the first step toward keeping your home safe. 

How to Avoid Electrical Hazards in Older Homes 

Fortunately, there are proactive steps you can take to keep your home safe and efficient. Investing in upgrades and routine care protects your property and your family’s safety. 

Ways to prevent hazards include: 

  • Regular electrical inspections: Licensed electricians can identify outdated wiring, worn connections, and overloaded panels before they cause problems. 
  • Upgrading circuit breakers: Replacing outdated fuse boxes or undersized panels with modern circuit breakers prevents overloads and improves reliability. 
  • Replacing old wiring: Installing new copper wiring ensures your system can handle today’s demand safely and efficiently. 
  • Adding GFCI and AFCI protection: These modern outlets and breakers protect against shocks and arc faults, reducing fire risk in older homes. 

 

Taking these steps helps extend the life of your home’s electrical system while improving efficiency and home electrical safety. 

The Cost of Delaying Electrical Repairs 

Postponing electrical repairs in older homes can be far more expensive than fixing problems early. What starts as flickering lights or a tripped breaker may eventually lead to damaged appliances, wiring fires, or complete system failures. In Gaithersburg and Montgomery County, where many neighborhoods feature older housing stock, these risks are especially common. 

Delaying service often means higher repair bills later, emergency calls during inconvenient times, and potential safety hazards for your family. By addressing issues promptly, homeowners not only protect their investment but also improve efficiency, reduce monthly energy costs, and enjoy peace of mind. 

Why Choose GAC Services for Electrical Repairs 

When it comes to addressing electrical hazards in older homes in Gaithersburg, MD, Glen Burnie, and Montgomery County, GAC Services provides trusted expertise and professional care. 

Homeowners choose us because we provide: 

  • Licensed and certified electricians: Our technicians are trained to handle outdated wiring, panel replacements, and circuit upgrades with precision. 
  • Thorough inspections and upgrades: We evaluate your entire system to identify risks and recommend cost-effective solutions. 
  • Fast and reliable service: With decades of experience in Montgomery County, we respond quickly to ensure your family’s safety and comfort. 

 

GAC Services is committed to helping homeowners modernize electrical systems with safe, practical, and efficient solutions that fit both budget and lifestyle. 

FAQs 

How often should I have my electrical system inspected? 

It’s recommended to schedule electrical inspections every three to five years, or sooner if you live in an older home or notice signs of electrical issues such as flickering lights or frequent breaker trips. 

How can I tell if my wiring is outdated? 

Outdated wiring may appear as cloth-covered wires, knob-and-tube systems, or aluminum conductors. Signs include warm outlets, burning smells, or tripped breakers. If your home is more than 40 years old, it’s wise to have a professional inspection. 

Are electrical upgrades expensive? 

The cost of upgrades depends on the scope of work, such as full rewiring versus simple circuit upgrades. While there is an upfront investment, modern electrical systems save money by preventing hazards, improving efficiency, and reducing long-term repair needs. 

Schedule Your Electrical Service Today 

If you’re concerned about electrical hazards in older homes in Gaithersburg, MD, Glen Burnie, or anywhere in Montgomery County, GAC Services is here to help. From inspections and outdated wiring replacements to circuit upgrades and safety improvements, our licensed electricians provide dependable solutions for your home. Call today or schedule your service online for peace of mind and lasting home electrical safety. 

 

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How Often Should You Schedule Duct Testing in Gaithersburg, MD?  https://gacservices.com/blog/how-often-should-you-schedule-duct-testing-in-gaithersburg-md/ Tue, 29 Jul 2025 20:34:06 +0000 https://gacservices.com/?p=16071 How Often Should You Schedule Duct Testing in Gaithersburg?  If you’ve noticed uneven temperatures, rising energy bills, or air that feels dusty and stale, your ductwork might be to blame. Hidden leaks, poor seals, and disconnected segments in the duct system can quietly rob your HVAC system of efficiency and reduce the comfort of your […]

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How Often Should You Schedule Duct Testing in Gaithersburg? 

If you’ve noticed uneven temperatures, rising energy bills, or air that feels dusty and stale, your ductwork might be to blame. Hidden leaks, poor seals, and disconnected segments in the duct system can quietly rob your HVAC system of efficiency and reduce the comfort of your home. In Gaithersburg and throughout Montgomery County, duct testing helps identify these issues before they become costly problems. 

A regular testing schedule not only improves HVAC performance but also saves money and keeps your indoor air healthier year-round. 

Common Reasons to Test Your Ducts 

Most Maryland homeowners do not think about their ductwork until something feels off. But your ducts are responsible for delivering heated and cooled air to every room. When airflow is compromised, comfort and efficiency suffer. 

Here are some signs that it may be time to schedule duct testing: 

  • Uneven temperatures across rooms: If some rooms stay warm while others feel cool or drafty, the duct system may be leaking or unbalanced. 
  • High utility bills: Energy loss from duct leakage forces your HVAC system to work harder, driving up monthly heating and cooling costs. 
  • Dusty or stuffy air: Leaky ducts can pull dust and particles into the system, lowering indoor air quality and making rooms feel stale. 
  • Reduced HVAC performance: A system that runs frequently but still cannot maintain temperature may be losing energy through hidden leaks or gaps. 

 

Even if your equipment is newer, the duct system supporting it might be outdated or improperly sealed. Duct testing gives you clear answers. 

How to Perform Basic Duct Checks 

While professional testing provides the most accurate results, homeowners can perform some simple checks to spot obvious issues. 

Here are a few ways to evaluate your system: 

  • Visual inspection of ducts: Look for kinks, sagging, or loose insulation, especially in attics, basements, and crawl spaces. 
  • Check for disconnected segments: Duct sections can separate at joints, especially over time or in areas with high humidity or vibration. 
  • Feel for airflow changes: Stand near supply vents and returns when the system is on. Weak airflow or no air movement could indicate a blockage or leak. 
  • Note any strange smells or noise: Musty odors, whistling sounds, or loud rattling can all be signs of a problem in the ductwork. 

 

These inspections won’t detect every issue, but they can help you decide when to schedule a more thorough test with a local HVAC expert. 

When to Call a Professional in Gaithersburg 

Some duct issues require trained technicians with the tools to detect and measure airflow problems. If basic checks reveal signs of trouble, or if you’re noticing ongoing issues with your system, a professional duct test is the next step. 

Call for professional duct testing if: 

  • You suspect a major leak: Large holes or disconnected runs can go unnoticed but significantly impact comfort and efficiency. 
  • High energy bills persist: If your utility bills keep climbing despite thermostat adjustments, duct leakage may be wasting conditioned air. 
  • Air feels stagnant or unhealthy: Poor ventilation or air quality may indicate the ducts are drawing in contaminants from unconditioned spaces. 
  • HVAC system struggles to keep up: If your system cycles frequently, overheats, or fails to cool or heat evenly, the ductwork may be limiting its performance. 

 

A certified HVAC technician can use pressure testing, infrared diagnostics, and airflow measurements to pinpoint where air is escaping and offer targeted solutions. 

GAC Services Offers Expert Duct Testing 

At GAC Services, we specialize in helping homeowners across Gaithersburg and Montgomery County get the most out of their HVAC systems. Our duct testing services are designed to find energy-wasting leaks and airflow restrictions that could reduce your system’s efficiency. 

Why choose GAC for duct testing in Gaithersburg, MD? 

  • Certified local technicians with knowledge of regional climate and code requirements 
  • Comprehensive diagnostics using professional-grade tools to measure pressure and flow 
  • Affordable energy-saving solutions that improve HVAC performance and lower utility bills 

 

We help you uncover the root cause of indoor comfort issues and offer clear, effective fixes. 

FAQs 

How much does duct testing cost in Gaithersburg? 

Costs can vary based on home size and system complexity, but GAC offers affordable options for standard residential duct testing. We provide upfront estimates and explain the value of any recommended repairs or sealing work. 

Can leaky ducts really raise my energy bill? 

Yes. Duct leakage is one of the most common sources of energy loss in Maryland homes. Heated or cooled air escapes into unconditioned spaces, forcing your HVAC system to run longer and work harder to reach the thermostat setting. 

How often should I have ductwork inspected? 

Most homes benefit from duct testing every three to five years, especially if they are older or have undergone renovations. You should also schedule a test if you notice comfort issues, rising utility bills, or if your HVAC system was recently replaced. 

Schedule Your Duct Test with GAC Services 

If your home isn’t as comfortable or efficient as it should be, your ducts may be part of the problem. GAC Services provides expert duct testing in Gaithersburg and throughout Montgomery County to help homeowners improve comfort, air quality, and energy savings. 

Don’t guess what’s going on behind the walls. Let our team evaluate your system and recommend solutions that make a lasting difference. 

Call today to schedule your duct test and take the next step toward better indoor air and lower heating and cooling costs.

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Why Hybrid Heating Systems Are Gaining Popularity in Gaithersburg, Maryland https://gacservices.com/blog/why-hybrid-heating-systems-are-gaining-popularity-in-gaithersburg-md/ Tue, 29 Jul 2025 20:23:27 +0000 https://gacservices.com/?p=16056 Why Hybrid Heating Systems Are Gaining Popularity in Gaithersburg  Homeowners in Gaithersburg, Rockville, and across Montgomery County are rethinking how they heat their homes. With rising energy costs and growing interest in clean energy, hybrid heating systems have quickly become a preferred choice. These systems combine comfort and cost savings by automatically switching between a […]

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Why Hybrid Heating Systems Are Gaining Popularity in Gaithersburg 

Homeowners in Gaithersburg, Rockville, and across Montgomery County are rethinking how they heat their homes. With rising energy costs and growing interest in clean energy, hybrid heating systems have quickly become a preferred choice. These systems combine comfort and cost savings by automatically switching between a heat pump and a gas furnace depending on outdoor temperatures and efficiency levels. 

If you’re looking for a solution that balances performance, flexibility, and lower monthly bills, hybrid heating may be the upgrade your home needs. 

What is a Hybrid Heating System? 

A hybrid heating system, also known as a dual fuel HVAC system, combines two heat sources in one setup: an electric heat pump and a gas furnace. Instead of relying on just one energy source all year long, the system automatically selects the most efficient option based on the weather and energy prices. 

  • Mild weather: The heat pump handles most of the heating during fall and spring. It moves heat rather than creating it, which makes it much more efficient. 
  • Cold snaps: When temperatures drop below a certain threshold, the gas furnace kicks in to maintain warmth and comfort. 
  • Automatic switching: The system senses outdoor conditions and adjusts accordingly, giving you the best efficiency at all times. 

This approach delivers reliable warmth through Maryland’s changing seasons while helping reduce overall energy consumption. 

Key Benefits for Maryland Homeowners 

Hybrid systems are ideal for homeowners in Montgomery County who want greater control over energy use without sacrificing comfort. Here are some of the most compelling benefits: 

  • Energy efficiency: By using the heat pump in milder conditions, the system relies less on fossil fuels, which lowers overall energy consumption. 
  • Cost savings: Switching between electric and gas based on efficiency can significantly reduce monthly utility bills. 
  • Enhanced year-round comfort: A hybrid setup keeps your home comfortable during temperature swings, which are common in Gaithersburg and Rockville. 
  • Environmentally friendly: Reducing reliance on gas for most of the year lowers emissions and supports cleaner energy goals. 
  • Versatile installation options: Hybrid heating systems can often be installed using existing ductwork, making the transition easier for many homes. 

 

Is a Hybrid System Right for Your Home? 

Not every home needs the same heating solution. The right system depends on your home’s layout, your utility costs, and your long-term energy goals. Hybrid heating is especially valuable for: 

  • Homes with existing gas and electric access: If your property already supports both, installation is often straightforward. 
  • Households looking to lower heating bills: If you’ve noticed rising costs during winter, a dual fuel system can cut down on wasteful energy use. 
  • Homeowners planning long-term upgrades: If you’re investing in insulation or replacing your air conditioner, hybrid systems can be part of a whole-home efficiency strategy. 
  • Environmentally conscious households: Reducing fossil fuel use without sacrificing comfort makes this a strong option for families focused on sustainability. 

 

If you’re not sure where to begin, GAC Services can help you explore your options and compare performance across systems. 

Trust GAC Services for Hybrid Heating Installation 

As one of the region’s early adopters of high-efficiency HVAC technology, GAC Services has helped homeowners across Gaithersburg and Rockville make the switch to smarter, cleaner heating. Our experienced team offers honest advice, top-quality installation, and ongoing support. 

  • Licensed, certified HVAC technicians with experience in dual fuel systems 
  • Tailored recommendations based on your home, energy use, and comfort goals 
  • Full-service support from design to installation and future maintenance 

 

We’re committed to helping you make confident, informed decisions with heating solutions that work long after winter ends. 

FAQs 

How much can I save with a hybrid heating system? 

Savings depend on energy rates, usage habits, and system efficiency, but many homeowners report lower heating bills within the first season. The electric heat pump handles most of the workload during mild months, keeping gas usage low. 

Do hybrid systems work in cold Maryland winters? 

Yes. During colder days, the gas furnace provides reliable backup heat. The system is designed to switch seamlessly from electric to gas so your home stays warm, no matter the weather. 

What is the lifespan of a hybrid system? 

With proper maintenance, hybrid systems can last 15 to 20 years. Because the system splits heating demands between two components, wear is reduced compared to single-source systems. 

Get a Free Estimate from GAC Services 

If you’re ready to reduce energy costs and increase comfort all year long, hybrid heating is worth considering. GAC Services installs high-efficiency hybrid heating systems across Gaithersburg, Rockville, and the greater Montgomery County area. 

Our team can evaluate your current setup, provide energy-saving recommendations, and handle the entire installation with care and expertise. 

Contact GAC Services today to get a free estimate and learn how a hybrid heating system could transform your home. 

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Electrical Safety Tips for Maryland Winters https://gacservices.com/blog/electrical-safety-tips-for-maryland-winters/ Mon, 30 Jun 2025 20:16:14 +0000 https://gacservices.com/?p=15915 Electrical Safety Tips In Maryland  Winter in Maryland can bring freezing temperatures, ice storms, and extra strain on your home’s electrical system. Between portable heaters, extra lights, and increased indoor activity, it’s important to make sure your electrical setup is safe and ready for cold weather.  At GAC Services, we help homeowners across Montgomery County, […]

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Electrical Safety Tips In Maryland 

Winter in Maryland can bring freezing temperatures, ice storms, and extra strain on your home’s electrical system. Between portable heaters, extra lights, and increased indoor activity, it’s important to make sure your electrical setup is safe and ready for cold weather. 

At GAC Services, we help homeowners across Montgomery County, Rockville, Gaithersburg, and Glen Burnie prevent winter electrical hazards before they become serious problems. Here are some essential tips to protect your home and family throughout the season. 

Common Winter Electrical Hazards 

Winter conditions can create or worsen electrical risks in your home. Be on the lookout for these common issues: 

  • Overloaded outlets from plugging in too many space heaters, kitchen appliances, or holiday lights 
  • Portable heaters placed too close to furniture, curtains, or bedding 
  • Old or damaged wiring that can’t handle the extra demand during colder months 
  • Breaker panel problems caused by tripped circuits or outdated components 
  • Extension cords that are overloaded, damaged, or not rated for indoor heating equipment 
  • Cold weather electrical issues such as frozen outdoor outlets or moisture intrusion 

 

Even if everything seems to be working fine now, these hazards can quickly escalate if left unchecked. 

How to Stay Safe 

Preventing electrical problems during winter starts with a few simple steps and smart habits. Here are practical ways to protect your home: 

  • Avoid overloading outlets. Plug only one high-wattage appliance into an outlet at a time. Use power strips with built-in surge protection when necessary. 
  • Practice space heater safety. Always follow manufacturer instructions, keep heaters at least three feet from anything flammable, and never leave them running unattended. 
  • Check your cords. Inspect extension cords for fraying or damage. Only use heavy-duty, grounded cords indoors, and avoid running them under rugs or through doorways. 
  • Use surge protectors. Winter storms can cause power fluctuations. A quality surge protector can shield your devices and appliances from damage. 
  • Know your panel. If you notice frequent tripping or flickering lights, have your breaker panel inspected. It may need repair or an upgrade. 

 

If your home hasn’t had an electrical checkup in several years, winter is a good time to schedule one. An inspection can catch issues like outdated wiring, loose connections, or overloaded circuits, all problems that become riskier during cold weather when your system is under heavier use. 

Small changes can make a big difference when it comes to electrical safety, especially during the high-demand months of winter. 

Why Maryland Homeowners Trust GAC Services 

When safety matters, experience counts. GAC Services has been helping Maryland homeowners prepare their electrical systems for winter for decades. Our licensed electricians in Maryland know how to spot issues early, recommend the right upgrades, and get your system winter-ready with minimal hassle. 

 

We know how Maryland winters can push electrical systems to the limit. Whether it’s preparing for a cold snap or responding to an outage, our local team is ready to help. Our familiarity with regional homes and electrical codes helps ensure your service is safe, compliant, and long-lasting. 

  • Fast response from trained technicians 
  • Familiarity with homes in Gaithersburg, Rockville, Glen Burnie, and surrounding areas 
  • Full electrical inspections and system updates 
  • Upfront communication and honest recommendations 

 

Whether you need help with a single outlet or a full panel replacement, we’re here to help. You can learn more about GAC Services or schedule an electrical inspection to keep your home safe this winter. 

We’re proud to be serving Gaithersburg and nearby communities with professional care, technical expertise, and a focus on prevention. 

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Heat Not Working in Your Gaithersburg Home? Here’s What to Do  https://gacservices.com/blog/heat-not-working-in-your-gaithersburg-home-heres-what-to-do/ Mon, 30 Jun 2025 18:11:44 +0000 https://gacservices.com/?p=15902 Heat Not Working in Your Gaithersburg Home? Furnace Repair Tips & Help If the heat suddenly stops working in your Gaithersburg home, it’s natural to wonder what went wrong. From thermostat settings to more serious furnace problems, knowing where to start can help you get warm again quickly.  Here’s what Gaithersburg homeowners need to know […]

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Heat Not Working in Your Gaithersburg Home? Furnace Repair Tips & Help

If the heat suddenly stops working in your Gaithersburg home, it’s natural to wonder what went wrong. From thermostat settings to more serious furnace problems, knowing where to start can help you get warm again quickly. 

Here’s what Gaithersburg homeowners need to know when there’s no heat in the house, including common causes, troubleshooting tips, and when to call in the pros. 

Common Reasons Your Heat Might Not Be Working 

There are several reasons your home heating system might stop working. Some are minor and fixable, while others need professional attention. The most common causes in Montgomery County homes include: 

 

    • Thermostat set incorrectly 
      A thermostat left on “Cool” or with a dead battery can block heating. Smart models may also lose settings after power outages. 

 

    • Tripped circuit breaker 
      Furnaces need electricity to operate. If the breaker trips, nothing will run. 

 

    • Dirty air filter 
      Clogged filters restrict airflow, causing the system to overheat or shut down. They can also lead to uneven heating. 

 

    • Ignition or pilot light issue 
      Without a functioning pilot or ignitor, your gas furnace won’t start. These parts wear down over time. 

 

    • Blower motor failure 
      If the blower stops working, warm air can’t circulate. You might hear the furnace running, but no heat reaches your rooms. 

 

    • Clogged furnace filter 
      A neglected filter builds up debris inside the system, reducing performance and increasing strain on components. 

 

    • Fuel supply issues 
      Gas or propane systems need a steady fuel supply. Closed valves or low levels can prevent ignition. 

Easy DIY Troubleshooting Steps 

Before you call for service, try these quick checks: 

 

    • Check your thermostat 
      Ensure it’s set to “Heat”, and the temperature is above the room’s current reading. Replace batteries if needed. 

 

    • Inspect your circuit breaker 
      Flip the furnace breaker off and on again to reset it if it has tripped. 

 

    • Replace or clean the air filter 
      If your filter looks dirty or clogged, replace it. This alone can restore airflow and get your heat running again. 

 

    • Reset your system 
      Turn the thermostat and system switch off, wait a few minutes, and turn it back on. 

 

    • Make sure vents are open 
      Clear furniture or rugs that may be blocking airflow from vents and returns. 

If these steps don’t work, it’s time to contact a professional. 

When to Call an HVAC Professional in Gaithersburg 

Not all heating issues can be fixed with DIY steps. Call an expert if: 

 

    • The furnace won’t turn on 
      This could point to a wiring issue, faulty ignition, or control board failure. Without professional tools, it’s hard to pinpoint the source. 

 

    • You notice odd smells or sounds 
      A burning smell may signal an electrical issue. Gas odors or loud banging noises could indicate something more serious, like a fuel leak or damaged heat exchanger. 

 

    • The system short cycles or doesn’t keep up 
      Rapid on-off cycling or inconsistent heat often means there’s a deeper mechanical or airflow problem. These patterns can wear out components faster and drive-up energy bills. 

 

    • Your carbon monoxide detector goes off 
      Exit your home immediately. Carbon monoxide leaks are dangerous and require emergency response. 

GAC Services Can Get the Heat Back On 

If you’re dealing with no heat in the house, GAC Services is ready to help. Our experienced technicians handle all types of heating issues for Gaithersburg homes, offering fast repairs and long-lasting solutions. 

We provide: 

 

    • Prompt furnace repair for all makes and models 

 

    • Preventive maintenance to reduce future breakdowns 

 

    • Friendly, local service you can count on all winter 

 

    • Seasonal checkups to prevent mid-winter surprises 

FAQs 

What should I check first if my heat isn’t working? 

Start with the thermostat and breaker. Make sure the system is set to “Heat,” the temperature is raised, and the furnace breaker is on. A dirty air filter is another common cause. 

How much does a heating repair cost in Gaithersburg? 

Repair costs vary depending on the issue. Simple fixes like replacing a sensor or ignitor are usually affordable, while major repairs may be more. 

Should I repair or replace my furnace? 

If your furnace is over 15 years old and frequently breaks down, a replacement may be more cost-effective than ongoing repairs. 

How often should I schedule furnace maintenance in Gaithersburg? 

You should schedule furnace maintenance once a year, preferably in the fall. A tune-up before the cold weather hits help catch small issues early and keeps your system running efficiently. 

Need Help? Contact GAC Services 

GAC Services proudly serves Gaithersburg and surrounding Montgomery County communities. If your heat isn’t working, our licensed professionals are here to restore your comfort quickly and safely. Schedule your furnace repair or maintenance service today. 

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The Cost Breakdown: AC Repair Versus Replacement with a New System https://gacservices.com/blog/ac-repair-versus-replacement/ Tue, 29 Apr 2025 15:57:14 +0000 https://gacservices.com/?p=15823 The Cost Breakdown: Repairing Your AC vs. Investing in a New System Reliable air conditioning is essential for Maryland homeowners, especially during the high heat and humidity of summer. At GAC Services, we know that when your AC system starts acting up, it’s common to wonder whether a repair will solve the problem or if […]

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The Cost Breakdown: Repairing Your AC vs. Investing in a New System

Reliable air conditioning is essential for Maryland homeowners, especially during the high heat and humidity of summer. At GAC Services, we know that when your AC system starts acting up, it’s common to wonder whether a repair will solve the problem or if it’s time to consider a full replacement. It’s a decision that affects not just your comfort but also your long-term budget, energy bills, and home value.

This guide breaks down the key financial and performance factors to consider, outlines when replacement is worth it, and helps you determine which route is right for your home.

Factors to Consider Before You Decide

Energy Efficiency

Older air conditioning systems typically have lower SEER ratings, often below 13, which translates to higher energy use and greater operating costs. In contrast, modern systems are built to be far more efficient. Upgrading to a new model can lead to significant monthly savings and reduce your home’s overall energy footprint. Many homeowners in Maryland also qualify for local utility rebates or federal incentives when they invest in high-efficiency equipment.

Over time, those lower monthly bills can offset the initial investment in a new system, especially during Maryland’s long cooling seasons.

Frequency of Repairs

If your AC unit needs repairs more than once per season, that’s a red flag. Constant breakdowns are not only expensive, they’re inconvenient. Unexpected outages during a Gaithersburg summer can mean days without relief from the heat. Eventually, the money spent on service calls and parts adds up to a cost that could have gone toward a reliable new system.

Home Comfort and Air Quality

An aging AC system may still run, but its performance might be declining in subtle ways. Uneven temperatures, poor humidity control, and weak airflow can all affect your comfort. Older systems may also circulate more dust and allergens due to outdated filtration. New air conditioners offer improved technology for air purification, smart thermostat compatibility, and more consistent cooling across your home.

Benefits of Replacing Your AC System

Lower Energy Bills Over Time

Replacing your system with a newer, energy-efficient model can lead to noticeable savings. Given Maryland’s average electricity rates and long cooling seasons, these monthly reductions add up fast. Many homeowners find that their total energy costs drop by 20 percent or more after upgrading.

Peace of Mind

A new AC system often comes with a manufacturer’s warranty that lasts 10 years or more. That protection can eliminate the stress of constant breakdowns or surprise repair bills. When summer heat hits its peak, you can feel confident that your system is ready to perform.

Improved Indoor Air Quality

Air quality matters, especially in pollen-heavy Maryland seasons. Modern AC systems are equipped with better filtration that removes pollutants, allergens, and humidity from indoor air. For families with children, pets, or respiratory conditions, this can make a major difference in day-to-day comfort.

Smart Home Compatibility

Many newer systems are designed to integrate with smart home platforms. Whether you’re using programmable thermostats, remote access apps, or energy monitoring tools, upgrading your system allows for more precise control over usage and comfort.

Increased Home Value

An updated HVAC system can make your home more attractive to future buyers. It signals that the property is well maintained and may reduce concerns about upcoming replacement costs.

When AC Repair Makes More Sense

Minor Repairs

Not every malfunction requires a full system replacement. If your issue involves replaceable parts like capacitors, contactors, or a small refrigerant leak, a targeted repair might be all you need. In these cases, the cost is relatively low, and the fix can restore full function.

Maintenance History

A well-maintained AC system can last 12 to 15 years or longer. If your unit has been consistently serviced and is only experiencing its first major issue, repair may be a more sensible option. Replacement shouldn’t be rushed if the system still has a useful life left.

Budget Considerations

If your finances don’t currently support the cost of a new installation, repair can provide a temporary solution. In these cases, consider planning and exploring financing options while getting the most out of your current system. Whether you need expert repairs or full system replacements, GAC Services provides trusted air conditioning support for Maryland homeowners.

Making the Right Call for Your Home

Every homeowner’s situation is different. While repair can be practical in the short term, investing in a new air conditioning system offers long-term comfort, reliability, and savings. The right choice depends on your system’s age, repair history, energy usage, and your household budget.

Before deciding, it’s wise to consult an HVAC expert. GAC Services offers honest assessments and complete air conditioning solutions across Maryland. Whether you’re repairing an older unit or exploring the benefits of an upgrade, we’re here to help.

Still unsure whether to repair or replace your AC system? Contact GAC Services for a no-pressure consultation and find out what’s best for your home comfort and budget.

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