Get matched with top geothermal heating or cooling system installers in Germantown, MD

"The gentleman (Ayite) did a thorough inspection. He explained that my unit needed a new capacitor. He and his staff followed through and I'm ready for Marylands "heat!""

"Sila was excellent to wok with. They had the experience and knowledge, plus a competitive price and financing options. Their installation crew was very good to work with - respectful of the house interiors, and cleaned up everything inside and outside. Also asked the appropriate questions when any installation matter offered a choice."

"I contacted Bluestar Air Mechanical for a second opinion after an appointment with Air One. I have a Carrier HVAC system, and the Air One technician recommended a complete system replacement, claiming the blower was bad, the furnace control board needed replacing, and that there were other issues. Since replacing the HVAC is a big investment, I wanted to get a second opinion. It was only after comparing the service from Bluestar that I realized Air One may have been pushing for a new system sale or lacked the expertise to properly diagnose and repair the actual problems. Isaac, the technician from Bluestar, spent about an hour thoroughly diagnosing and fixing the issues. He found burnt wiring in the furnace and discovered that the wrong capacitor had been incorrectly installed in the AC. Isaac replaced the burnt wiring in the furnace and the capacitor in the AC. After these repairs, my Carrier system was back up and running—without the need for a costly replacement. Bluestar, and Isaac in particular, demonstrated professionalism, expertise, and honesty. They focused on resolving the actual issues instead of pushing for an unnecessary system replacement. I highly recommend Bluestar for their reliable service and Isaac’s thorough and knowledgeable work."

"Woke up this morning to my hvac leaking and contacted Markool. I have never used them before and was in a pinch. They fit me right in this morning and were out at my house within 2 hours. The tech stepped in the door and placed covers for his shoes so he did not track in any dirt which was impressive! The tech was very professional and super friendly. Problem was diagnosed and FIXED within an hour. The price was extremely reasonable to the point I was shocked in a good way (expecting a higher price). Anyways, I will most certainly be a returning customer. Thank you Markool Heating Cooling Plumbing."

"Good professional work!"

"From not having a water supply for my whole home bypass humidifier, to having a repaired, new water supply line and instant winter comfort. All in less than two hours. Thanks Edmond and team for getting me taken care of right after I arrived home from work. Wealth of knowledge, too, about HVACs warranties, and other good general advice for first-time homeowners like myself! Glad to have signed-up tonight as a member - eligible for discounts tonight and future maintenance services. Highly recommend!"

"Great service very prompt and easy to work with."

"they are an excellent installer"

"."

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.