Air Conditioner Installers in Havertown, PA

"I thought the salesman mike was great. He answered every question i had and was most knowledgeable about the inner workings of oil burners. My installation team was outstanding. It was like bang bang. My oil and hot water was installed in 2 days with hot water heater installed on the first day. These guys were clean and efficient . Two thumbs up!"

"They are great to work with and very responsive. Would highly recommend them."

"Knowledgeable, timely, and very professional. Would recommend highly."

"They are work great and fast. Overall very pleasure experience"

"Service personnel were outstanding, friendly, neat and efficient"

"I waited to write this review until all the work as completed and we received the stated rebates. I highly recommend Donnelly HVAC!, The owner personally came out and gave us the best system for our money. All work was completed professionally and on time. I personally do not believe that we would have received a better system or installation even at twice the price. Sincerely, Robert K"

"Hired them to clean and inspect our furnace. They showed up on time and did a really professional job. Would use again."

"Excellent customer service and value for the money and would recommend them."

"Woke up with no heat! Right before Christmas! Harris responded instantly and sent out someone to check the problem. Due to incorrect installation, rain had gotten into the improperly sealed roof vents, which in turned fried the transformer, inducer and circuit board. They were at my place bright and early the next morning installing a brand new furnace, more efficient and quieter, with a 10 year warranty. Arranged financing and were finished by 3pm. Everyone from my first phone call to the last service tech was professional, polite, knowledgeable and all around pleasant and really nice people. They will be my go to for heating, AC, plumbing and electrical from here on in. Glad I found them!"