Professional and Friendly: That’s how we do business!

Current Promotions

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$49 Seasonal Tune-Up
Offer expires December 31, 2019
$49 Seasonal Tune-Up

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 $89! Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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$20 off Smart Home Kits
Offer expires December 31, 2019
$20 off Smart Home Kits

Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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$249 Off
a portable generator with manual transfer switch
Offer expires December 31, 2019
$249 Off a portable generator with manual transfer switch

Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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$99 Electrical Home Safety Check
($169 value)
Offer expires December 31, 2019
$99 Electrical Home Safety Check ($169 value)

Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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Up To $2,000 in Rebates
for the purchase and installation of a new Bryant system
Offer expires December 31, 2019
Up To $2,000 in Rebates for the purchase and installation of a new Bryant system

Up to $2,000 in rebates for the purchase and installation of a new Bryant system.  Restrictions may apply.  One coupon per visit.  Offer expires October 31, 2019.

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Our special financing for 36 months
with approved credit or Up to $2,000 in Rebates
Offer expires December 31, 2019
Our special financing for 36 months with approved credit or Up to $2,000 in Rebates

When you purchase a new HVAC system from GAC Services, you can expect quality, reliability and efficiency all at a comfortable price. Right now when you purchase a new air conditioner and furnace system from us, you can take advantage of our special financing for 36 months with approved credit!

We install the following systems:

Whether you currently have separate heating and cooling systems or a heat pump, our experienced professionals at GAC will identify the right new system for your needs. Contact us online or call us at 301-926-3253 for a free estimate on your system today!

When you purchase a new HVAC system from GAC Services, you can expect quality, reliability and efficiency all at a comfortable price. Right now when you purchase a new air conditioner and furnace system from us, you can take advantage of our special financing for 36 months with approved credit or up to $2,500 off. Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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Up to $499 Off
a New Generator
Offer expires December 31, 2019
Up to $499 Off a New Generator

Generators offer you power when and where you need it. If you’re at home during a power outage, generators provide power when you need it most. To learn more about generators or to schedule an estimate (including up to $500 with mention of this special), contact us now.

Schedule your appointment for a new generator now.

*Generator discounts are based on kw size 11-16kw savings of $375 and 22kw $500. Certain restrictions apply. We reserve the right to amend or terminate these offers at any time. Prior installations do not qualify. See dealer for details. WSSC: 72505 HVAC:02-7541 ELECTRIC: 4172. Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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$20 Off
Coil Cleaning or System Repair
Offer expires December 31, 2019
$20 Off Coil Cleaning or System Repair

GAC Services is currently offering $20 savings on your next coil cleaning or system repair.

Schedule your appointment now.

Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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Save $20
on Your Next Electrical Service Call
Offer expires December 31, 2019
Save $20 on Your Next Electrical Service Call

The GAC Services brand you know and trust now also offers comprehensive electrical services. We are offering $20 savings on your next electrical service call!

This includes:

Schedule your appointment today.

Restrictions may apply. One coupon per visit. Offer expires October 31, 2019.

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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.

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.

Contact us for a free replacement estimate on a new cooling system or to schedule service today.

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