Get matched with top tankless water heater installers in Lansdowne, PA

"Great! Jeff was polite while carefully explaining the process of replacing the hot water heater. He also recommended installing a water pressure regulator which most likely would have prevented the previous water heater from failing. Price was reasonable and response time was quick."

"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!!"

"Brennan was very professional, helpful and friendly. He has done some other repairs at my home and I have always liked the work he completed. I had an electric tankless water heater installed for the whole house...so far it has been good."

"Patrick and Adam came to my house to fix a leaking tankless electric water heater. They could not fix. I wasn't happy with the performance so Patrick recommended a gas vented water heater. Also installed a utility tub in my laundry room. I didn't even call done rite till maybe 11:00am. They came did all work and where out of here by 5:15. How is that for same day service. Jason came to assist. Cleaned up nice crew. I would highly recommend them."

"I had a new hot water heater installed. Excellent professional work. I would highly recommend this company"

"Fast and fairly priced. Colin is a knowledgeable and thorough installer."

"This was as good an experience as one could want given a plumbing problem."

Proudly serving the Main Line. Built on trust, consistency, and showing up when it matters.\nWe diagnose issues correctly, explain your options clearly, and fix problems the right way — not the quick way.\n\n• Upfront pricing, no surprises\n• Fast response times\n• Clean, professional technicians\n• Quality work that lasts\n\nServices:\nWater heaters • Drain cleaning • Leak repairs • Sewer issues • Water filtration • General plumbing

At Green Air Concepts Heating & Air Conditioning, LLC Customer satisfaction is our top priority. We ensure that any job we do matches your vision of the work done. If you are looking for the best general contractor in town, give us a call today.

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.