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Heating, Air Conditioning & Electric in Maryland

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You’re one step away... from experiencing award winning HVAC and electrical service.

Meet GAC Services

Maryland's #1 Residential Contractor

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10,000

Customers Serviced

Experience the GAC difference today.
45
years
Providing Award Winning Service
to our customers in Maryland.
Most
Nationally Awarded
Bryant Dealer in the U.S.

Cooling, Heating, Electric & More

We’re setting new standards in the Maryland HVAC and electrical market one home at a time.

The GAC team focuses on whole home comfort for Maryland residents.

The GAC team focuses on total home comfort for Maryland residents.

“What do our customers want?” That’s the question that’s been driving the way we do business at GAC from the very beginning—back when you might have known us as Gaithersburg Air Conditioning & Heating!

While our name may have changed, the way we do business has not. We proudly provide:

Up-front pricing. 100% satisfaction guarantee. On-time service. Factory trained and nationally certified technicians. Respect for your home.

These are just a few reasons why your neighbors love working with GAC. It is this commitment to excellence, along with our friendly and honest professionals, that has helped us satisfy tens of thousands of customers throughout Maryland over the years. And it is this that we consider the GAC difference.

Featured Service for Heating Season: Furnace Services

Furnace Repair in Gaithersburg & Surrounding Maryland Areas

Coming home to a broken furnace is never a welcoming situation, especially during the cold winter months in our Gaithersburg area. Below-freezing temperatures can make for a very uncomfortable home environment for family, friends, and even pets. At GAC Services, we repair gas, electric, and propane furnaces throughout Gaithersburg, Frederick, and the surrounding Maryland areas.

Furnace Installation & Replacement in Gaithersburg Area

Most furnaces will last 10-12 years with proper maintenance. But if you’re looking to replace your old, aging system, GAC is ready to help. We install the most advanced products designed to save you money while keeping you comfortable, whether you’re looking for a gas furnace, propane furnace, or variable speed furnace (for ultimate efficiency!). For furnace installation in the Gaithersburg area, trust GAC Services!

Furnace Installation in Bethesda | Furnace Installation in Chevy Chase | Furnace Installation in Clarksburg | Furnace Installation in Derwood | Furnace Installation in Frederick | Furnace Installation in Gaithersburg | Furnace Installation in Germantown | Furnace Installation in Kensington | Furnace Installation in Laytonsville | Furnace Installation in Montgomery Village | Furnace Installation in Olney | Furnace Installation in Potomac | Furnace Installation in Rockville | Furnace Installation in Silver Spring

Furnace Maintenance in Gaithersburg & Montgomery County

Your heating system should undergo a full maintenance tune-up once a year—generally in the fall before heating season begins. We offer comprehensive maintenance plans to ensure your system is up to code and operating efficiently. Contact GAC Services to schedule heating system maintenance in Gaithersburg, Frederick, or the surrounding Maryland area today. And, depending on what our team finds when they inspect your system, we also offer furnace repair and furnace installation/replacement if necessary too!

Hear what other satisfied customers are saying...

“We wouldn’t think of using anyone else. We have always been very satisfied with your service and your wonderful staff. ****** rating!”

John Micheal, MD
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The information on this website is for informational purposes only; it is deemed accurate but not guaranteed. It does not constitute professional advice. All information is subject to change at any time without notice. Contact us for complete details.