We’re setting new standards in the Maryland HVAC and electrical market one home at a time!
Whether you’re looking for HVAC or electrical service in Olney, you’re guaranteed on time service, 100 percent satisfaction, up-front pricing, and respect for your home when you call the experts at GAC Services. We invite you to check out our current promotions and read more about our extensive service offerings below.
Need an HVAC Company in Olney?
When you need solutions for keeping your home comfortable, trust your local Olney HVAC company, GAC Services. Our factory trained and nationally certified technicians are armed with the best products and can help you identify the most affordable and energy efficient way to heat or cool your home. We offer HVAC installation, replacement, repair, and maintenance for the following systems:
- Air conditioners
- Heat pumps
- Furnaces
- Hybrid heating systems
For affordable HVAC installation and repair by Maryland’s best HVAC company services Olney, contact the experts at GAC Services.
HVAC Installation in Olney, Maryland
Since our doors opened in 1970, we’ve been keeping our customers comfortable with HVAC installation and services in Olney. Whether you’re looking for prompt AC repair or to upgrade from your flimsy window unit to a central air conditioner, our NATE-certified technicians are experts in all AC makes and models. Choose GAC Services for top-rated HVAC installation and more in the Olney area!
Ready to hire the leading Olney HVAC company? Give us a call at (240) 233-8498 for HVAC installation in Olney!
Top-Rated Olney Electrical Services
“I didn’t know GAC offered electrical services in Olney!”
We do now! Your #1 choice for cooling and heating services in Maryland can now be your #1 choice for electrical services. GAC Services is pleased to offer comprehensive electrical repairs, replacements, upgrades, and installations to customers in Olney.
Our services include but aren’t limited to:
- Circuit breaker services
- Portable generator services
- Attic and gable fan installations and repairs
- Recessed lighting
- Network wiring
- Outlet replacement
- Smoke detectors and carbon monoxide detectors
- Dedicated circuitry
- All electrical repairs
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 Olney over the years. And it is this that we consider the GAC difference.
Contact our Olney electrical and HVAC company to schedule HVAC installation, HVAC replacement, HVAC maintenance, HVAC repair, and electrical services.
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!


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.