Get matched with top water main install, replace or repairers in Lower-merion, PA

"It was easy to schedule an appointment. Brandon confirmed the day before and arrived on time. He did not have the part with him, but got it and returned quickly and fixed the problem. He also answered some other questions I had about repairs."

"The workmanship was very professional and cleaned up afterwards. Wouldn't even know they were here. Billy did an excellent job with the removal and instillation of a new hot water heater. Brought the instillation up to code by adding a drip pan and expansion tank. I have them coming back to replace valves for washing machine and installing shutoff valves."

"They were fast and willing to work with us on install of a replacement water heater."

"Old Water heater was leaking. These guys came in cleaned up my basement, installed a new one in good time. Good communication."

"Responsive and professional in removal old and installation of new water heater."

"Came out quickly to snake main drain. Very efficient and professional. Price was fair. Very satisfied. Would definitely recommend."

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

"Had a clogged sewer pipe with sewage backing up into basement shower. Was on time, professional and cost was appropriate. I’ll definitely use and refer them again"

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

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.