"Small one man shop - very honest. I have used him several times. Owners name is Ronan. Had another HVAC company tell me my coils need cleaning. Ronan looked at my outside…"

"They installed a new system and reconfigured our existing heat ducts when we added on to our house. great team, worked well, clean ! Of all the construction guys, they were…"

"We installed an Amana system and we had a great experience. The technicians were very knowledgeable and complete the work in one day. I appreciated that their work was neat and…"

From Business: Presidential Heating & Air Conditioning is based in Gaithersburg and has provided exceptional HVAC services to residential and commercial customers in and around Montgomery…

From Business: Adrian L. Merton is a heating and air conditioning systems design, installation, maintenance and service contractor that serves commercial, industrial and residential…

"REal Chill is great to work with and very reasonably priced. They came out the next day and James the technician was just a pleasure to work with. We have had horror stories…"

From Business: We install and repair air conditioning & heating systems. We also install duct work, complete mechanical systems and specialize in high velocity space pack A/C installations