Get matched with top central a/c installers in Downingtown, PA

"ECC installed a new condenser and coil. Tony, who is one of the owners, did the job himself with two assistants. He was very personable, respectful, and thorough in his explanation of the work. The work was done in a timely and efficient manner, the work zone was left in clean condition and the installation itself appears to be very neat and professional. My strong impression is that Tony and his co-owner, Ed, are two highly experienced and professional craftsmen in this business who take pride in their work and I appreciated having the actual owners, not salesmen and crews, developing the proposal and performing the installation. The entire experience, beginning with Lisa at the office, Ed, who developed the proposal, and finally with Tony and his team, was excellent and I will certainly hope to engage them for future HVAC needs."

"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!!"

"The salesperson spent a lot of time listening to me and my concerns, very personable, After inspecting the job thoroughly he took his time preparing the proposals offering two options. Explained line by line each part of what the installers would replace and do. Very knowledgeable about the Boiler system."

"Sales rep measured rooms and windows to perform a load cal'n. Proposed a quality Carrier system at a reasonable price. The installation took a little longer than expected due to use of an inexperienced helper, but eventually it appeared to be a quality installation. They met my requests for minor modifications/enhancements to allow easier maintenance. Workers wore masks at all times, used drop cloths along walking paths and shoe covers, so the job was kept clean. Took time to explain system, installation and maintenance points. Were honest about risk of condensate pipe freeze-up and potential remedies, and "orphaned" water heater. Overall, quite satisfied with the equipment and installation. Awaiting finalization of punch list paperwork items."

"Excellent customer service. Immediate response to air conditioning problems I then replaced the whole system I will use them for gas heater tune up in the fall A. Breese Coatesville PA"

"I selected DiBiase based on a friend's recommendation. The owner was transparent in all discussions, sent competent installers, stopped by to QC the work being done, and negotiated with me on the contract so it was a win win for me and for him. DiBiase stands behind their work and has a highly experienced crew to complete the job. I would recommend DiBiase to friends and family for heating and air conditioning services.
"

"Very professional installation. Was done in a timely fashion and the crew was very professional and clean. Huge difference in the comfort of our home now."

"A very good team of Technicians. Worked well to complete installation and removal of old system faster than I expected. Cleaned up behind themselves. Would recommend company to others."

"it wentsmoth to install central air verry happy with it"

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.