GAC Services

Trusted Heating Services in Maryland

Heating Installation, Repair & Maintenance in Montgomery County, Frederick County, Howard County and Carroll County, MD

When you need help keeping your Maryland home comfortable in the winter, trust the experts at GAC Services. Our factory-trained and nationally certified technicians will ensure your family stays warm while keeping your heating costs low.

To schedule heating installation, repair, or maintenance in the Gaithersburg area, please call (240) 233-8498 or contact us online.

Heating Installation & Replacement in Maryland

Are you building a new home in Montgomery County, Frederick County, or Howard County, MD? Is your existing heating system due for an upgrade? Either way, you need heating installation and replacement services from GAC. We strive to provide the best customer experience by helping with the selection and sizing process, performing an expert installation, and hauling away your old equipment, if necessary.

Our technicians are trained to install all makes and models of the following systems:

Benefits of Installing a New Heating System

Heating replacement is an investment that comes with many perks. When you choose GAC to perform the installation, you can expect your new furnace, heat pump, or other type of heating system to provide these benefits:

  • Efficiency boost for lower heating bills
  • Better airflow for improved home comfort
  • Reliable performance for fewer breakdowns
  • Noise-reducing capabilities for quieter operation
  • New warranty coverage for peace of mind

Fill out our online contact form to schedule heating installation and replacement with GAC today!

Maryland Heating Repair Services

Is your heater acting up? Turn to the knowledgeable team at GAC to perform the heating repair you need. We proudly offer 24/7 emergency services to ensure you’re never left in the cold. Feel free to call us anytime if your heating system stops working. We offer the following:

Signs Your Heating System Needs Repair

Watch for these signs that it’s time to call GAC for heating repair:

  • Uneven heating
  • No heat or not enough hot air blowing from your vents
  • Continuously running heater
  • Short-cycling heater, or shutting off prematurely
  • Strange noises or smells coming from the heater
  • Rising energy bills with no apparent cause

Prevent Costly Repair & Replacement with Heating Maintenance

The best way to keep your system running smoothly is to schedule heating maintenance. Tune up your system once a year to enjoy more efficient, reliable performance all winter long. Then, maximize your benefits by signing up for a Prime Maintenance Membership. In addition to seasonal tune-ups every spring and fall, you’ll also receive:

  • 20% discount on HVAC repairs
  • 10% off electrical repairs
  • Priority service
  • Reduced diagnostic fee
  • And much more

If it’s time to repair or maintain your heating system, please call GAC at (240) 233-8498.

Frequently Asked Heating Questions

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Furnaces generate heat by combusting a fuel source, while heat pumps move heat using electricity. Both systems circulate warm air throughout the home using a blower and ductwork.

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The general recommendation is to check the air filter every 30 days, changing it when it appears dirty, or every 90 days, whichever comes first. You may need to follow a different schedule depending on the type of filter you use and whether you have allergies or pets.

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Consider replacing your furnace if any of the following is true:

  • The unit is more than 15 years old.
  • Breakdowns are becoming more frequent.
  • An upcoming repair approaches 50% of the replacement cost.
  • Your energy bills are climbing.
  • You have widespread home comfort problems.
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AFUE stands for annual fuel utilization efficiency. The closer this number is to 100, the better the furnace is at converting fuel into usable heat. Look for an AFUE rating of 85 or higher when replacing your furnace.


Schedule Heating Services in Montgomery County, Frederick County & Howard County, MD

At GAC, we strive to be more than just an HVAC contractor—our goal is to improve people’s lives through better comfort, enhanced efficiency, and greater reliability. We care about our customers and want to keep them comfortable! Whether you crave on-time service, up-front pricing, or technicians who respect your home, you’ll find it with GAC Services.

Give us a call at (240) 233-8498 or contact us online to schedule heating installation, repair, or maintenance in your Maryland home.


Join GAC's Prime Maintenance Membership

  • High-performance seasonal tune-ups
  • 20% discount on heating and cooling services
  • 10% off electrical repairs
  • Emergency service
  • Reduced diagnostic fee
  • And more!

Financing Options Available

At GAC, we understand how important a functioning HVAC system is for your home. This is why we offer flexible financing options to help you take care of your new HVAC purchase, so you can get back to taking care of what matters most to you.

Apply Online

Priority Maintenance

A well-maintained HVAC system can save you from having to invest in costly repairs down the road. Learn more about the priority maintenance services offered by GAC Services.

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