Get matched with top thermostat installers and replacers in Oaks, PA

"Erik came out to inspect our current system and arrived when scheduled. Gave us an proposal before he left. We called to schedule a date and they arrived on time. Work was totally completed within 6 hours and everything was cleaned up with no mess anywhere. They even vacuumed our basement carpet before they left. We're very pleased.
"

"Very professional and replaced my hot water heater and installed a new toilet in about 2 1/2 hours Highly recommend!"

"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"

"When I contracted with Dave, he gave me estimates that included what it would cost if no posts needed replacement or if posts did need replacement. Upon inspection, Dave said that no posts needed to be replaced. He did repairs on 3 posts & replaced the bottom trim on all 4 posts. He then repainted all the posts & fascia. I was so happy with his honesty,work & reliability (he kept all appointments, reminded me when he was coming & arrived on time) that I am contracting with him to do some other jobs around the house."

"Air conditioner inspected and repaired."

"I will hire them again"

"When I turned my A/C on for the season, the system wasn?t cooling. I had a tech come out and I was told that the system had a leak. Because the age of my system, I decided to replace it with a new one. The team at Green Air Concepts were prompt, neat, and they were very nice people. They did an amazing job, and my house is now cooling beautifully."

"The Good Neighbor company were such a pleasure to work with. They accommodated my schedule for an appointment and were prompt, friendly and very communicative about pricing and what they were doing. If you are looking for an honest, fair and friendly company, these are the guys for you! I highly recommend TGN for your heating and air conditioning needs!"

We are a leader in quality high efficiency Air conditioning and heating system installations. We do it the right way and provide financing options to make it affordable for our customers to upgrade and save money in the long run.

In 1972, Donnelly’s Cooling, Heating & Plumbing began serving Pennsylvania residents with premier plumbing services and later expanded to add their superior HVAC services. As the area’s top choice for plumbing, heating, and cooling service, we’re proud to offer unmatched professionalism and quality results.\n\nWith same-day and emergency services, our team is always available for your home service needs. Plus, with service for all brands and free estimates, you can trust you’re in excellent hands with our team.