Top-Rated HVAC & Plumbing Services in Lansdale, PA

Very professional. Experienced technicians.

Nick was kind and knowledgeable and we went through the house with him making suggestions about upkeep. Very professional, very nice.

Donnelly’s responded to us right away even though it was past normal business hours. Caleb handled the situation very professionally

Tom was deployed quickly to manage a burst pipe. He quickly assessed the issue, showed evidence and made an appropriate recommendation. He also improved the positioning of the replacement to avoid future issues. Very pleased with the service.

Brandon did an amazing job and was so quick, responsive, and professional. He informed us that we had biological growth in our upstairs HVAC system (it sure looked like mold to me) and he discovered that my moms in law suite did not have a filter on the split system that was installed during our garage to in law suite conversion. He gave us options and I discussed pricing with my husband. Brandon came back to our home the same day and he installed 2 UV light systems on both our upstairs and downstairs unit and he put a filter on my mothers split system. We were so impressed by his knowledge, honesty, and quality of work. Great experience!

We had an amazing experience with Donnellys!! We called Donnellys becuase we had a pretty negative experience with another company and were searching for a new company to do business with. Shane who came out to do yearly maintenance to our HVAC system, he was very honest about the (very bad) condition of our upstairs system including a potentially dangerous code violation. (We always thought our downstairs system was the one to worry about.) He was professional and honest and it is because of our interaction with Shane we chose to go with Donnellys for the replacement of our upstairs system. When David came out he was awesome as well. He spent so much time looking at our situation and gave us a few options. We knew it was going to be a big and expensive job, but with a 4 month old baby...it needed to be done. He explained the financing to us and we were approved literally an hour after we applied. We loved our interaction with David. We cannot even begin to put into words how incredible Travis and his team were during the 3 days they were here doing the job. They were so friendly, punctual, polite, and professional. They were so sweet with my 4 month old daughter and were great with our very anxious dog. They kept our home as clean as possible considering the huge, messy job we had going on here. Travis always explained what had been done and what needed to be done the next day. He always asked if I had any questions and never seemed annoyed with my questions to him. I thought it was so thoughtful that they worked so hard to at least have heat in the master bedroom so my husband, myself, and our baby were warm during the cold nights this week. Travis explained the entire system to me upon completion of the project and I fully understand how our system works. We honestly cannot say enough about how great Travis was. It was truly a pleasure having him and his team here. We are so thankful that we found Donnellys and are so impressed with them and their service.

Have used Donnelly's for many years.They are prompt, knowledgeable and professional. Robert Dippolito was very knowledgeable and took the time to explain everything.We will continue to rely on their expertise in the future.

Matt was knowledgeable and patient and made numerous suggestions for the future. Quickly repaired my AC unit in prep for summer.

Looks like excellent AC.inatall work. Friendly, polite and professional. Don't really know about price because didn't comparison shop. Don't know yet about the product quality, haven't had it long enough and had issues with the prior unit which was same brand. Started a bit late but not the tech's fault.

Same day service, very professional

Joseph G. was great. Polite and professional he quickly fixed our issue.

Nick is awesome. He is friendly and always willing to share tips for maintenance.:)