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Need Service?
See if we serve your community!
Our Services

The GAC team offers the highest quality HVAC, electric, and indoor air quality services throughout Montgomery, Frederick, and Howard County.

Let us help your family stay cool and comfortable all season long.
Trust our experts for reliable heating repair, installation, or replacement services.
Our master electricians are ready to tackle your toughest electric problems.
From air cleaners to humidifiers, we can help you achieve optimal IAQ in your home.
Why GAC

“What do our customers want?” It’s a question that drives the way we do business every day.

On-Time Service

100% Satisfaction

Up-Front Pricing

Factory-Trained
Technicians

Fully-Stocked
Trucks

Respect for
Your Home

On-Time Service

100% Satisfaction

Up-Front Pricing

Factory-Trained
Technicians

Fully-Stocked
Trucks

Respect for
Your Home

Heating, Air Conditioning & Electric in Maryland

Our Trusted Services

If you’re looking for HVAC or electrical work, GAC Services can meet your needs. Our family-owned and operated company has been serving the Gaithersburg area for over 50 years. We care about our customers and want to keep them comfortable by providing professional, honest, reliable, and valuable indoor comfort and energy solutions.

Why GAC

“What do our customers want?” It’s a question that drives the way we do business every day.

We strive to be more than just an HVAC and electrical contractor—our goal is to improve people’s lives through better comfort, enhanced efficiency, and greater reliability. We are proudly setting new standards in the Maryland HVAC and electrical market one home at a time! Consider the many reasons why your neighbors love working with GAC.

Caring Professionals, Committed to Excellence, Deliver on our Promises

At GAC, our caring professionals place value in putting people first, exhibiting leadership at all levels, and doing whatever it takes to ensure customer satisfaction. We are committed to excellence, which is one reason we have been able to satisfy tens of thousands of customers throughout Maryland over the years. We also deliver on our promises, offering a 100% satisfaction guarantee for your peace of mind.

Every homeowner desires a safe, energy-efficient household. GAC is here to help with your most complicated HVAC and electrical problems. We can perform installation, replacement, repair, and maintenance work on every brand, style, and type of HVAC or electrical system. With such comprehensive services, you can rely on us as your one-stop home comfort shop!

The next time you need air conditioning installation, electrical panel replacement, furnace repair, or generator maintenance, turn to GAC. We arm our factory-trained and nationally certified technicians with the skills they need to identify and deliver the most affordable, efficient solutions for your Maryland home. We look forward to providing you with award-winning service and hopefully making you a customer for life!

Give us a call at 301-926-3253 or contact us online to request HVAC or electrical service in Gaithersburg.

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Hear What People
Are Saying
GAC sales rep and the installers arrived at my home on time and were professional. They respected me
Very impressed with every aspect of our experience with GAC Services, from the routine maintenance o
Ermias was my technician today. He called ahead when he was on his way, and arrived within the time
The HVAC technician was very professional and knowledgeable. Great service with high confidence that
We just had our heating+ac units (indoor and outdoor) replaced today, on one of the hottest days of
GAC Prime Maintenance Membership

One of the best ways to protect your HVAC system is with a Prime Maintenance Membership. Enroll today to receive these additional outstanding benefits:

  • 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!
  • Transferable
  • Monthly Newsletters
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!
Transferable
Monthly Newsletters
Request Service If you are in need of immediate assistance, please call our office directly.

Homepage

Promotions Our team offers money-saving HVAC and electrical promotions
to help your investment go further. Check out some of our
current deals below for more details.
$75 Off Electric Panel Replacement or Upgrade

Restrictions may apply. One coupon per customer per visit.

expires 10/31/2021 read more  
Schedule Service
$59 Seasonal Heating Inspection Original Price $129

Allows one of our professionals to examine the inner workings of your heating system to ensure all of the important components are functioning correctly, and safely. In addition, discovering and fixing any issue in the fall or early winter means you’re less likely to have a breakdown when it’s freezing outside. One coupon per customer per visit. Restrictions may apply.

expires 10/31/2021 read more  
Schedule Service
$75 Off Electric Panel Replacement or Upgrade Expires 10/31/2021 read more  
Schedule Service
$59 Seasonal Heating Inspection Original Price $129 Expires 10/31/2021 read more  
Schedule Service
Redeem Your Offer
Redeem Your Offer
Award WinningAward WinningHVAC & Electrical Contractor 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
medal_logo
Bryant 2013 Dealer of the Year
Bryant Factory Authorized Dealer
generac_logo
Service Area Areas We Serve We provide heating and cooling services throughout Montgomery County, Frederick County, Howard County, and Carroll County.