Best heating and air conditioning pros near Aston, PA

"Our oil heater went out in a snow storm. They were VERY helpful, and got our heater installed quickly! I would recommend Old Skool HVAC to anyone looking for affordable, dependable service! Thank you Old Skool!!"

"They gave me a honest assessment of my situation and offered expert opinion and made me an offer that i couldnâ t refuse and installed my Furnance in 6 hours. I would definitely recommend anyone needing HVAC help to give these guys a call very professional and OUTSTANDING SERVICE!!!!!"

"Great company run by friendly people. Joe and his team know their stuff. Deborah is a pleasure to speak to on the phone. I first called due to some weird behavior with my HVAC and wanted them to come take a look. Before they arrived, the HVAC started working ok again. I called them back and when I told them what was going on, they explained that there was nothing wrong and the weird behavior I explained was actually normal based on what I had my thermostat set to. No visit and no fee required. A lot of other service companies might have urged a visit and charged me the fee. I then hired them for a regular maintenance service contract, and they have been fantastic. Always show up on time.
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"Very friendly and knowledgeable about HVAC systems, will recommend to any and everyone"

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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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"I would give MORE stars if I could. Service was excellent. Greg arrived at the appointment time, was clear about what he would do and how he would do it. He was very clean in his work. He removed all duct covers, then began the cleaning. I had some issues with the antibacterial disinfectant (allergies) he would be using. He advised I could research it and let him know. He even allowed me to smell the disinfectant. We did use it and the smell was very mild and dissipated in about a half hour. After cleaning the duct work, he returned all the duct cover and cleaned up his work area. He worked by himself and had the job done in under 3 hours. And the price was fantastic, coming in at over $150.00 and $300.00 less than 2 other bids. If you're looking for duct cleaning for your HVAC system or dryer (he did that, too!), The Duct Pros are where you want to go! Thank you Duct Pros!"

"Lee Barnes was very knowledgeable explained all aspects of new hvac system install. And answered all our questions. Provided good options and recommendations based on our requirements. promptly scheduled install on our time line. The installation crew was on time and very professional. They made sure the property was kept clean during and after install."

"This company is great. From the staff in the office to the electricians /HVAC that have come out. They will be doing a third project for me shortly."

"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."

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.