Get matched with top central a/c service or repairers in Unionville, PA

"job was well done and promptly for fair price. Would recommend them for all services, They also service our heating system and we've used them for several years now,"

"Project: HVAC Systems Check-up, Preventive Maintenance & Repair Arrived earlier than expected; both Technicians were courteous and very professional. Explained what needed to be repaired/replaced in the Central Air compressor and answered all of my questions in easy-to-understand manner. Both Technicians were proficient as well as efficient. I personally would recommend DESMOND HEATING & COOLING SOLUTIONS to my neighbors, family and friends needing expert help with HVAC maintenance issues or problems. WELL, DONE! THANKS, ANGI ..."

"Great service and customer communication timely service. Staff was polite and knowledgeable reviewed service plan and pricing. Repair man was able to communicate plan and cost and reason for repair Promptly completed work and clean up Worked within Covid restrictions and made recommendations for prevention of future mishaps. 4 year guarantee provided and that was better than other plumbing services offered. Very satisfied with work and would recommend to friends and family. Price was fair job was completed withinn 24 hours of call."

"

we had a leak problem and the tech came and looked over our equipment, fixed the problem and left. It cost us nothing and we have had their home heating service contracts for over 20 years.  They have NEVER ONCE not shown up or not helped and in the two furnace emergencies we had--they were here with in 1hr. 

We are very happy.

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"George listened attentively to the issues I was having with my AC, and to my needs and where my limits were. He is extremely detail-oriented and determined to get to the root of the issue. My situation was a very odd one, turning out to be a glitch created by a different company this winter when working on my heater unit. It was through his knowledge and his actually hearing what I was saying that led him to the problem. Although the original call to him was concerning a new unit and his evaluation, he certainly did not expect to come in here to spend so much time putting this puzzle together!! He was very patient, very determined and extremely kind in his efforts to put me on the right track. I highly recommend him.... you will quickly see you're in good hands with someone experienced and fair!"

"good service caii was 99.00 repair 64.00"

"Norm and Joe provided great service throughout the entire process."

"The technician Adam couldn't have been more professional and helpful. He arrived on time and was very courteous. He quickly was able to assess the problem and repair it. I'd recommend One Hour Heating and Air Conditioning to anyone looking to install or repair their HVAC system."

"I give Matt 5/5 stars easily. Hired him to service my gutters. Showed up early, discussed the plan with me, and did quick work. Overall great job and highly recommend. Will hire him for next service."

Keystone Comfort HVAC was built to provide a better experience for homeowners in southeastern PA. After years of working within large, corporate-driven HVAC environments, our founders saw a growing need for a company that values honesty, quality work, and long-term relationships over quick transactions. We understand the common frustrations customers face, including unclear communication, rushed service, and short-term fixes that don't solve the real problem. We take the time to listen, explain what is happening, and provide clear recommendations tailored to your needs. Whether it is system repairs, new installations or maintenance, we focus on doing the job right the first time. We believe that when customers feel informed/confident in their decisions, the results are better. We also believe that strong teams create better outcomes. By supporting our employees and maintaining high standards in our work, we are able to deliver consistent service that customers rely on.