Get matched with top central a/c installers in Jarrettsville, MD

"My system stopped working and I have a newborn so I was panicked and called Dean’s. I live an hour away but Mike came to my house and had me up and running in no time. Highly recommend Dean’s to anyone!!"

"Great. Doug answered our inquiry promptly and fixed our issue the next day for significantly less than the first quote."

"I have a dual zone system and the air handler/heat pump unit on the 2nd floor was blowing hot air. I immediately looked up HVAC service in the Bel Air area and came upon Comfort Air. I initially chose this company based on the good reviews. I was told by the technician that based on the age of the unit and problem it was more cost effective to replace the unit instead of making a temporary fix. I agreed and after entertaining some estimates I chose Comfort Air. We negotiated a very reasonable price along with a quality unit. The installers were very professional and completed the work in about 4 hours. I would highly recommend Comfort Air for any Heat and Air Conditioning needs."

"Best price, great customer service"

"We had a tuneup today on our HVAC system. Gentleman was professional. However.....technician states they are no longer allowed to utilize homeowner's driveway. I would like to know who is now coming to repair the damage to my front yard! It's wet and of course he got stuck. WHEN SHOULD I EXPECT TO HAVE A TEAM-MEMBER OF ARS OUT TO REPAIR OUR LAWN?"

"The technician was diligent in doing his job. Did not waste time. Was very friendly and enjoyed talking to him."

"Quin was great to work with. Well knowledgeable in identifying needs and resources."

Serving Mount Airy & Surrounding Areas Since 1949\nOne Hour Air Conditioning & Heating® of Mount Airy is proud of its long history serving the Mount Airy community. Our business began in 1949 as a furnace and air duct company. In the 1950s, we began building custom homes and commercial buildings. However, we devoted our attention to HVAC work full-time in 1993. Since then, we focused on making the residents of Mount Airy, Frederick, Gaithersburg, and surrounding areas in Maryland comfortable in their homes.

"Great service all around! I needed a full swap, both a/c and furnace. They were great right from scheduling! They worked with me on financing which was a blessing. You can tell they care about the quality of their work and went above and beyond in every way!"

"Sunday 6/22 my mom's air conditioner was struggling. We called Aireserv who set up for their tech Bryson Bean to come out to mom's house. From the bright greeting smile as he introduced himself to the going over everything he was very professional and patient with all my questions. Highly recommend Aireserv for any of your heating and air conditioning issues. Thank you Bryson for being so you and personable."