Get matched with top water main install, replace or repairers in Gwynedd Valley, PA

"Ross and his team did an amazing job replacing my old water heater with a new tankless water heater. They arrived on time, were very professional and had my hot water up and running in what seemed like no time. They provided excellent service at a great price and I will definitely use them for all of my plumbing needs!"

"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."

"I had a leak in a water pipe in the mother-in law apartment. Tried to fix it myself to no avail. I called and left a message around 10pm. Mike called me back at 7am and told me that they could come out sometime 10 to noon. Shawn and his assistant did a great job at a good price! I will be using Gallagher's for all of my plumbing going forward. Thank you Mike"

"They replaced my water heater. The work was done quickly and with very high quality."

"I called them at 8am and the Plumber (Kevin) agreed to stop by at 10am. By 12noon, my new bathroom faucets were installed. Kevin was very courteous and professional. I would recommend them to family and friends."

"On the price, I don't, but it was also reasonable. They had also installed a water heater like a year before, reasonable. For sure they're a good service provider, any issues I have with the HVAC or my water system, I'll go to them. They clean up behind themselves; I don't have to do much."

"It went ok - the guys were nice but I just wouldn't use them again for any "big plumbing" problem.  I just didn't feel comfortable with choosing them for another plumbing job.
"

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

"Tyler from Resistance did great job. He replaced & updated the service and panel along with running an underground line to my shed"

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.