GAC Services

About Us

Your Trusted Maryland HVAC Contractor & Electrician

GAC Services is proud to be a family-owned and operated HVAC and electrical company with over 50 years of experience serving Gaithersburg, Maryland. We provide comprehensive residential and commercial services to meet the needs of homeowners and businesses throughout Montgomery County, Frederick County, and Howard County.

Since we opened our doors in 1970, we have satisfied tens of thousands of customers throughout Maryland. Back then, we were known as Gaithersburg Air Conditioning & Heating. Our name may have changed, but the way we do business has not. Our ability to deliver professional and reliable HVAC services has never wavered over the years because we remain dedicated to customer satisfaction and fair employee treatment.

For top-rated heating, cooling, and electrical services in Maryland, please call us or contact us online.

Our Mission & Values

At GAC, we stand firmly behind our mission statement and core values. They serve as our guiding principles and have been at the heart of our company since we started doing business more than half a century ago.

Mission Statement

Our mission is to build long-lasting client relationships by providing professional, honest, reliable, and valuable personalized indoor comfort and energy solutions.

Core Values

Our values include:

  • People First
  • Bring More Than You Take
  • Leadership at All Levels
  • Whatever it Takes
  • Win the Day

To work with a company that stands behind its values, please call GAC today.

The GAC Difference

Not all HVAC and electrical contractors are created equal. We stand out because our core focus is to exceed our customers’ expectations with friendly and honest service, not cushion our bottom line with upselling and empty promises. In fact, we are more than just an HVAC and electrical contractor—we improve people’s lives. We truly care about our customers and want to keep them comfortable! This commitment to excellence and customer service is what we consider the GAC difference.

Here are a few reasons why your neighbors love working with us:

  • Upfront pricing
  • 100% satisfaction guarantee
  • On-time service
  • Factory-trained and nationally certified technicians
  • Fully-stocked trucks
  • Respect for your home

Contact us to experience the GAC difference for yourself. We look forward to serving you and hopefully making you a customer for life!

Our Service Area

We provide heating, cooling, and electrical services throughout Montgomery County, Frederick County, and Howard County, Maryland. If you own a home or run a business in the Gaithersburg area, we can serve you!

Please call us at (301) 482-0515 to clarify our service area and schedule an appointment.

Learn More

There’s a lot more about us we wish to share with you! Check it out:

  • Awards: Our commitment to excellence has earned us numerous awards over the years, including Bryant Dealer of the Year, “Best of Montgomery County,” and the Angie’s List Super Service Award five years running.
  • Licenses: We are happy to share our license numbers and certifications so you know we’re qualified to perform the best possible HVAC and electrical services in Maryland.
  • Reviews: We have a strong reputation for going above and beyond with our professional, honest, and reliable services. But don’t take our word for it—find out what your neighbors are saying about us!
  • Careers: Are you looking to join a team of dedicated, passionate HVAC contractors and electricians? GAC has a career for you! Check out our current job postings and apply with us today.

To learn more about GAC or schedule HVAC and electrical services in Maryland, please call us or complete our online contact form.

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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!
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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
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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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