Get matched with top tankless water heater repair pros in Renton, WA

"They came out quickly to give me a estimate for replacing my 10 year old Rinnai heater. They actually told me NOT to get the additional optional recirculating feature that another company was recommending, due to cost and reliability issues. When Washington Water Heater’s bid came in it was about 40% less than the other guy for the same work and same water heater (minus the recirculating feature)- $5200 vs $9100. They didn’t require any money up front (other guy wanted 50%) and were able to schedule the work for only a few days out (other guy said it could be weeks or months). The showed up on time, did excellent work and even charged me slightly LESS than the original bid because they ended up not needing to install a pump for the condenser."

Pipers Drain Repair is a trusted provider of professional plumbing company services dedicated to keeping residential and commercial plumbing systems flowing efficiently. With a commitment to quality workmanship, fast response times, and exceptional customer service, Pipers Drain Repair specializes in diagnosing and resolving a wide range of plumbing issues, from leaking water line repairs to full house repipes. Using advanced equipment and proven techniques, the company delivers reliable, long-lasting solutions that help prevent costly future problems. Pipers Drain Repair takes pride in offering honest assessments, transparent pricing, and customized services tailored to each customer’s needs. Whether handling routine maintenance, drain inspections, hydro jetting, or complex repairs, the team is focused on delivering dependable results with minimal disruption. Known for professionalism, integrity, and attention to detail,

"Trevor and Matt were great to work with when we needed to have our hot water heater serviced."

"They came out the next day and was able to install a new water heater for me. They even matched the other bid I had received. Very friendly and professional installers."

"This co responds quickly. We called RossCo because they had installed th water heater. They responded and said they would fit us unto their schedule. Came within hour and fixed problem at no cost"

"Great. I received 3 bids and Drain Pro's was the most competitive and thorough. We scheduled a date, and installation was done in a day. They removed my old electric water heater and were tidy and very professional. I paid by check as they left. Now I will have to install an electrical outlet next to the heater but meanwhile, it's on an extension cord... Looking forward to 24-hour hot water, and a lower electric bill!"

"Steve-O was so helpful and informative. He fixed my water heater that day!"

"Prompt and professional. Replaced water heater same day for us"

"Dominick was on time explained what he was going to repair did a great job explained and wrote up estimate for replacing a new water heater fast service, polite technician explained my options for new water heater to be replaced in Jan great guy will hire him in Jan to replace the hot water heater"

"Discovered my water heater was leaking like a sieve about 8pm on a Wednesday, called a few places none could guarantee next day. Then I contacted Knockout, were able to accommodate the next morning and price was as good or better than the others. A half hour later a tech called to walk me through turning off and draining the broken water heater. Next morning at 9:30am the Knockout guy arrived and by noon I was taking the best shower of my life. Water heater is performing great, seems like top quality as was the service. Highly recommend!"