Get matched with top tankless water heater repair pros in Oaks, PA

"They were very fast to respond to my call and were able to send someone within two hours. The replacement of the hot water heater went well. For the water pipes they use copper crimp fittings instead of soldering so it will be interesting to see how that holds up over the years. My only concern is how they ran the gas line. They use Gastite CSST which is fine, but the CSST is run so it goes downward then back up and then downward again before it enters black pipe that has a moisture trap. It seems to me that if there is any moisture it will end up in the CSST instead of the trap. In addition, there is a pretty good bend in the CSST right before it goes into the trap section. Also, Teflon tape was used on the all the joints instead of joint compound. I think I will get someone from a different company to come in and take a look at it."

"Happy with the water heater install"

"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."

When plumbing problems disrupt your day, you need a local plumber who responds quickly, communicates clearly, and gets the job done right the first time. At Montco-Rooter Plumbing & Drain Cleaning, our plumbers are friendly, experienced, and fully equipped with the tools and technology needed to diagnose and repair a wide range of plumbing issues.\n\nWe understand that plumbing emergencies do not follow a schedule. That is why we are available nights, weekends, Saturdays, Sundays, and holidays, with no additional after-hours charges. Whether you are facing a sudden leak, a backed-up drain, or a water heater that stopped working, you can count on our team to arrive promptly and restore proper function to your plumbing system.

"Quick response on a Sunday after my hot water heater failed, with ValDel able to supply the brand of water heater I was looking for. No one likes putting out the kind of money that this type of emergency repair requires, but I was able to negotiate significantly down to almost match a verbal quote that I had received earlier in the day. Jason was an excellent technician, very courteous, and completed the job quickly. I would definitely use ValDel (and Jason) for future needs."

"Bryan serviced our heater, he also told me about the condition of our heater. What it would take to repair it & that the age of the unit would make it too costly to repair. We appreciate your quality work & your advise, thank you."

Horizon Services, Inc., is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizons Services, Inc., remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners.\n

"They do the exact work that they say they will do. One time shortly after they had came and worked on my plumbing, a pipe broke and they fixed it for free. I will continue to use them because I stick to who I like and trust. They have very nice employees."

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

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.