We’re setting new standards in the Maryland HVAC & electrical market one home at a time!
Whether you’re looking for HVAC or electrical service in Glenelg, you’re guaranteed on-time service, 100% satisfaction, upfront 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. At any point, feel free to fill out the form to the right or call us today to schedule service.
“I didn’t know GAC offered electrical services in Glenelg!”
We do now! Your #1 choice for cooling and heating services in Maryland can now be your #1 choice for electric services. GAC Services is pleased to offer comprehensive electrical repairs, replacements, upgrades, and installations to customers in Glenelg.
Our services include but aren’t limited to:
- Outdoor lighting installation – custom-designed landscape lights for your home
- Security lighting – lighting to keep your home or property safe and secure
- Circuit breaker services – including heavy-ups and panel upgrades
- Generator services – including transfer panels and installation
- Under-cabinet lighting – useful and beautiful to enhance your kitchen
- Attic and bath fan installations and repairs
- Recessed lighting – using LED lamps for energy savings
- Chandelier lighting – bring beauty, luxury, and light together in one fixture
- Network wiring – including Cat 6 Ethernet wiring
- Outlet replacement – including GFI outlets, switch replacement, and USB outlet combinations for charging your phone or other devices
- Appliance wiring – for appliances (both 120 and 240 volt), electric cars, hot tubs, HVAC wiring, etc.
- Smoke detectors and carbon monoxide detectors – new installations and upgrades available
- Dedicated circuitry – for appliances (both 120 and 240 volt), electric cars, hot tubs, HVAC wiring, etc.
- USB port outlets – be able to charge all your electronics from any room with outlets that have USB ports
- Whole-home surge protection – to protect your home from dangerous power surges
- Breaker and fuse repair and replacement – whether your home has a breaker panel or fuse box, we’ll make sure it’s in working conditioned to keep your home powered
- New construction electrical services – for new homes and properties built in Maryland
- Electronic vehicle (EV) charging station installation – to speed up charging your car with a 240-volt charger, install a dedicated circuit with GAC Services
- All electrical repairs – if you have any sort of electrical problem, our master electricians can fix it
Heating Services in Glenelg
When you need solutions for keeping your home in Glenelg warm and comfortable, trust the experts at 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 your home.
We sell, install, repair, and service the following heating systems:
For affordable equipment installed and repaired by Maryland’s best technicians, contact the experts at GAC today.
Air Conditioning Services in Glenelg
Since our doors opened in 1970, we’ve been keeping our customers cool with air conditioning services in Glenelg. 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.
We sell, install, repair, and service the following cooling equipment:
HVAC Maintenance Services in Glenelg
Wondering if heating and cooling maintenance is necessary? To put it simply, yes, it’s quite necessary. You seek maintenance for a car to make it last longer, work better, and to avoid a breakdown, right? Well, you should look for heating and AC maintenance in Glenelg for all of the same reasons, plus a bit more.
You want your system to be strong, you want it to be reliable, and you want to protect the expensive investment that it is. And to do that? Maintenance is vital.
Your HVAC system should undergo a full tune-up at least once a year. Contact GAC Services to schedule heating and cooling system maintenance in Glenelg today!
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.
Upfront 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 Glenelg over the years. And it is this that we consider the GAC difference.
Contact us for a free replacement estimate on a new installation or to schedule service today.
We’re looking forward to serving you and hopefully making you a customer for life!
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.