1,300+ Reviews   |     4.9 Rating  

Awards & Recognition

GAC Services was named the inaugural recipient of the Charles Bryant Award during the 2017 Bryant Dealer Rally in Indianapolis. The Charles Bryant Award, named for the company’s founder, recognizes a loyal Bryant Factory Authorized Dealer (FAD) that epitomizes the characteristics of Charles Bryant, including professionalism, quality, reliability, and community spirit. Learn more about this award.

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Award Winning HVAC & Electrical Contractor

Servicing Homes throughout Montgomery County & Frederick County, MD

GAC Services (formerly Gaithersburg Air Conditioning & Heating) is an award winning HVAC and electrical contractor servicing homes in the Montgomery County and Frederick County, Maryland areas. Our commitment to training the best team of licensed HVAC technicians and electricians possible and dedication to outstanding customer service has contributed to our growth and success.

Our Awards

  • 2013 Bryant Dealer of the Year. The #1 Bryant Dealer in the Country.
  • Inaugural Winner of the Charles Bryant Award
  • 2017 Inaugural Charles Bryant Award Winner
  • 2016, 2017, 2018, 2019, 2020 Circle of Champions Award
  • 2015 ACCA Contractor of the Year
  • 2015 City of Gaithersburg Business Character Award
  • 2014 recognized as one of the top 3 Contractors in the country by ACCA
  • Fourteen-Time Winner of the Medal of Excellence Award in the Mid-Atlantic regions
  • Bryant Pinnacle Award
  • 2018, 2019, 2020 (3X) Best of Bethesda Award
  • 2014-2019 (5X) Angie’s List Super Service Award
  • Blue Ribbon Award in the Montgomery County
  • Contracting Business Quality Home Contracting Award
  • Washingtonian Magazine – Most trusted Contractor

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The GAC Difference

“What do our customers want?” That’s the question that’s driven 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.

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.

The GAC Team

Friendly, Honest, Professional

Our people represent the foundation of the GAC difference, which is why we place such a strong focus on training and providing excellent customer service.

Schedule Award Winning HVAC & Electrical Service

Your home is a significant investment, so don’t just trust anyone to install, repair, or service the heating, cooling, and electrical equipment in your home. If you’re looking for award winning HVAC and electrical service in Montgomery County or Frederick County, contact us today!

Customer testimonials »

$100 Off Panel Replacement or Upgrade!

Restrictions may apply. Offer expires on Sep. 30, 2021. ONE COUPON PER CUSTOMER PER VISIT.

expires 09/30/2021 read more  
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$59 Seasonal System Check Original Price $129

Claim our $59 Seasonal System Check, and your second system is only $129! Ensure your system is ready for the season and prevent costly breakdowns.

Filters need replacing, electrical components tested and safeties need to be verified. We do all that and provide advice on how to improve your comfort and reduce your energy costs. For even more peace of mind, we also offer a maintenance program that provides priority service, seasonal tune-ups and 20% discounts on repair.

Schedule your appointment today.

Coupon good for one system, each additional system is only $129! Restrictions may apply. One coupon per visit. Offer expires on Sept. 30, 2021. ONE COUPON PER CUSTOMER PER VISIT.

expires 09/30/2021 read more  
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Need Service? Schedule a service with us today!


Hear What People
Are Saying

1,300+ Google Reviews
4.9 Star Average Rating
GAC sales rep and the installers arrived at my home on time and were professional. They respected me and my home and arrived masked and gloved (much ap...
On-Time Service
100% Satisfaction
Up-Front Pricing
Factory-Trained Technicians
Fully-Stocked Trucks
Respect for Your Home
Membership Perks
High-Performance Seasonal Tune-Ups
20% Discount on HVAC Repairs
10% Off Electrical Repairs
Priority Service
A Trusted Professional on Your Home Service Team
Reduced Diagnostic Fee
Satisfaction Guarantee
Relax, We’ll Contact You!
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