In addition to upfront pricing, we are currently offering special discounts and promotions to customers that present these coupons while scheduling their services. This is a limited time offer!
The Perks of Our Heating Services
A full breakdown on pricing prior to beginning services at your home.
A full inspection and cleaning of your system prior to our service completion.
All of our contractors have been subjected to a thorough background check prior to being hired by us, so you’ll have the most trustworthy professionals in PA working in your home.
Our contractors are certified to work on a wide variety of heating systems.
We hold an A+ Rating by the BBB
Fill out Schaal’s online form to get your free estimate.
As your friendly community heating company in eastern PA, our goal is to make you feel comfortable with our techs as they enter your home to get the job done right. There are no gimmicks when it comes to pricing, which is why we make sure repair, installation or maintenance costs are clear and conveniently presented to you upfront. Our team is also intently savvy with repairs and installations for a variety of heating systems. This includes electric, ductless, furnace, gas and oil-based heating appliances.
Our Services
Heater Installations
Heat Repairs
Heater Maintenance
Ductless Heating
Geothermal
Furnaces
Gas & Oil Heating Systems
Heat Pumps
Indoor Air Quality
Before leaving the premises, we will also ensure your heating system is fully functioning and clean. Contact us today for an installation, repair or to schedule your next maintenance appointment.
5670 NW Beaver Dr, Johnston, IA 50131
Discover The GAC Difference
Call Us Today!
Contact Us Today
Office Address
Certified Technicians
100% Satisfaction Guarantee
& Insured for Safety
On-Time Service
Up-Front Pricing
Honest, Up Front Pricing
On Previous Estimates
Respect for Your Home
At GAC Services, we believe that regular electrical system maintenance is the key to preventing costly repairs and extending the life of your equipment. That's why we offer priority maintenance services to our customers in Gaithersburg and Frederick, MD.
Our comprehensive Prime Maintenance Membership plans include a complete inspection of your electrical system, cleaning and tuning of components, and identification of any potential issues before they turn into major problems. With priority maintenance, you'll also receive priority service when you need repairs, as well as exclusive discounts on parts and labor.
By signing up for Prime Maintenance Membership, you can have peace of mind knowing that your electrical systems are operating safely and efficiently all year round. Contact us today to learn more and schedule your first maintenance appointment.
The Perks of Our Heating Services
A full breakdown on pricing prior to beginning services at your home.
A full inspection and cleaning of your system prior to our service completion.
All of our contractors have been subjected to a thorough background check prior to being hired by us, so you’ll have the most trustworthy professionals in PA working in your home.
Our contractors are certified to work on a wide variety of heating systems.
We hold an A+ Rating by the BBB
With years of experience in the electrical industry, our team has the knowledge and skills to handle any electrical project, big or small. We stay updated on the latest codes and regulations to ensure compliance and deliver high-quality workmanship with every job.
GAC has been providing our HVAC & Electrical needs for years. The team (Edwin Sanchez & his Assistant) came by today to do an install and were extremely helpful, knowledgable and provided all the information we needed to ensure we were getting the right electrical solution. Really appreciate GAC team.
- Richard Chinsammy, Google Review
Call us or fill out our online form to receive a free estimate on a new AC unit.
Schedule a time and day for our NATE-Certified technicians to repair your air conditioner.
Enjoy greater comfort and lower energy bills.
LICENSE NUMBERS
License # WSSC: 72505
License # HVAC: 02-7541
License # Electric: 4172
We understand that you can’t always plan for the unexpected, so we offer flexible payment options for electrical installations or replacements. GAC Services is committed to providing reliable, affordable services to homeowners throughout Gaithersburg and the surrounding communities.
Electrical systems and components can wear out and create an unsafe situation. By having your systems checked regularly, we can help catch issues before they become bigger problems. Learn more about the Prime Maintenance Membership services offered by GAC Services.
© 2025 GAC SERVICES. ALL RIGHTS RESERVED.
“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.
HOURS
EMERGENCY SERVICES AVAILABLE
WEEKDAYS: 7 AM - 6:30 PM
SATURDAYS: 7:30 AM - 4 PM
SUNDAYS: 7:30 AM - 4 PM
GAC Services provides HVAC and electrical services to your neighbors in Montgomery County, Frederick County, and Howard County, Maryland.
Professional Electrical Services Provided By GAC
From lighting fixtures to electrical panels, our expert electricians specialize in installing a wide range of electrical components with precision and efficiency. Whether you're renovating your home or upgrading your office space, we ensure that your electrical system is installed to code and meets your specific requirements.
When electrical issues arise, it's crucial to address them promptly to prevent disruptions and safety risks. Our experienced electricians are equipped to handle a variety of repairs, from faulty outlets to electrical wiring problems. We prioritize safety and efficiency, ensuring that your electrical system is restored to proper working order as quickly as possible.
Our Seasonal Offers
$250 Off Electrical Vehicle Car Charging Bundle
Includes the car charging station installation, permitting, and a whole home surge protector
As technology advances and your electrical needs evolve, it may be necessary to upgrade your electrical system to accommodate new appliances or devices. Whether you're adding more outlets to your home office or upgrading to a higher capacity electrical panel for your business, we can help you with efficient and cost-effective upgrades that meet your current and future needs.
Get priority service & save money by joining one of our Electrical Prime Maintenance plans.
We work for our customers 7 days a week until sundown for home emergencies.
Our Deals
All Service for Veterans, Active Military & First Responders
10% OFF
Limited Time Offer