Outstanding service from start to finish. Melquon arrived on time, was courteous and professional, and thoroughly inspected our HVAC system. He clearly explained his findings, answered every question, and never pressured us into unnecessary repairs. We appreciated his honesty, expertise, and attention to detail, and we highly recommend GAC for dependable HVAC service.
About GAC Services
GAC Services is a trusted home services company established in 1970, specializing in HVAC, plumbing, and electrical services in Maryland. They aim to build long-lasting relationships with clients by offering personalized indoor comfort and energy solutions. Their expertise includes heating and cooling services, such as repairs, maintenance, and installations, as well as electrical services like generator installations.
Customers consistently praise the company for its prompt service and knowledgeable technicians. Reviews highlight the professionalism, friendliness, and efficiency of the technicians, who take the time to thoroughly explain services. For example, during the installation of a new Bryant HVAC system, technicians ensured the process was stress-free and completed the job in one day while being courteous and respectful. GAC Services is recognized for having replacement parts readily available and providing strong client support, as noted by a technician who efficiently performed an A/C checkup and communicated clearly throughout the service.
The company also receives high praise for its plumbing services, with technicians communicating clearly and fixing issues efficiently. Customers appreciate the short wait for diagnostic visits, the great communication, and the accurate diagnosis and repairs performed on schedule. Pictures of the problem and the fix are often shared during the process, showing a high level of professionalism. GAC Services maintains a reputation for excellent customer service, attention to detail, and a commitment to quality work.
Overall, GAC Services continues to deliver outstanding service with knowledgeable staff, timely responses, and a focus on customer satisfaction.
Reviews
Matthew A. came out today to do a major internal HVAC cleaning. He was very thorough, answered all my questions and left everything spotless. I have the highest regard for GAC and their well-trained technicians. Highly recommend.
Our GAC technician - Phillip was very professional, on time, and took time to explain what he found with the Fall checkup. I was very pleased with his work and so much appreciated his professionalism. I want his supervisor to know that he is an excellent employee.
Photos

Hours
Good to know
- accepts credit cards
- open to all
Location
227 East Deer Park Drive, Gaithersburg, MD 20877
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