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Heating, Cooling & Electrical Services in Maryland

Serving Montgomery County, Frederick County, Howard County, & Carroll County, Maryland

Are you looking for reliable heating, cooling, plumbing, or electrical services for your home or business in Maryland? Look no further than GAC Services! Based in Gaithersburg, Maryland, GAC is a family-owned and operated heating, cooling, plumbing, and electrical company that has set the standard for quality service in Maryland.

For reliable heating, cooling, plumbing, and electrical services in Gaithersburg, Montgomery County, Frederick County, Howard County, and Carroll County, trust GAC Services! To learn more about our services or to schedule an appointment, contact GAC online or call us at (301) 417-5459 today.

Since our doors opened in 1970, GAC Services has been keeping our customers cool by providing air conditioning services throughout Montgomery County, Frederick County, Carroll County, and Howard County.

Whether you’re looking for prompt air conditioner repair or you’re ready to upgrade from your unit to a high-efficiency air conditioner, our NATE-certified technicians can help! We service all air conditioner makes and models, regardless of whether we installed them or not.

Contact us today to schedule air conditioning service in your home.

When you need heating solutions to keep your home in Maryland warm and comfortable, trust the HVAC experts at GAC Services. Our factory-trained and nationally certified heating technicians are armed with the best equipment and can help you identify the most affordable and energy-efficient way to heat your home.

Whether you need fast repairs, a new unit, or routine maintenance, we’ll keep your home nice and cozy during the colder months.

Contact us now to schedule heating service in Montgomery County, Frederick County, Carroll County, or Howard County.

Don’t settle for a less-than-exceptional home plumbing system. If you have leaky faucets, a slow water heater, or clogged drains, we’ll provide you with a solution. Our plumbing repair, installation, replacement, and maintenance services ensure your appliances and pipes are operating properly, no matter the time of year. We can even help you with gas line repairs and replacements.

Contact us today to schedule an appointment for our plumbing services in Gaithersburg, Maryland.

GAC Services is pleased to offer comprehensive electrical repairs, replacements, upgrades, and installations to customers throughout the Gaithersburg, Maryland, area. Whether you need to install new lighting fixtures and a whole-home rewire or replace your outlets and surge protector, we can help.

Contact us today for safe and reliable electrical services for your Maryland home.

Choose GAC Services for HVAC, Plumbing, & Electrical Services in Maryland Today

When you need professional HVAC, plumbing, and electrical services in the Gaithersburg area, count on GAC Services. We will provide the quality of service you need at a price you can afford and will leave you 100% satisfied.

The GAC Difference

“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 hasn’t.

We will provide you with:

  • Up-Front Pricing
  • 100% Satisfaction Guarantee
  • Timely Services
  • Access to Highly-Trained Technicians
  • Respect for Your Property


Contact us today to schedule an appointment with our HVAC, plumbing, and electrical company in Gaithersburg, Maryland.

Join GAC's Prime Maintenance Membership

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.

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.