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,

"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."

"Brian was on time and super knowledgeable for dealing with my tankless hot water heater. He got right to work and dealt with the problem and helped me establish a paper trail with the manufacture in case of any future warranty concerns."

"Knowledgeable and fast! Had access to the heat pump technology I wanted to install while replacing defunct water heater. Prompt and efficient. Super satisfied!"

"Friendly and professional.The repairman had to go under the house and he got wet, because there was a leak, and he didn't complain.He fixed the hot water leak and found a leak in the cold water pipe as well.He told me about the problem and quickly fixed it. He was gracious and met with me outside to do the paperwork. I would and have recommended this wonderful company."

"Great to work with. I had them both replace my hot water heater and take over maintenance of my furnace."

"Bad hot water heater. Came same day and gave bid which was lower than most. Completed work quickly the next day. Will hire him anytime I need plumbing work. very friendly and polite.A+++ in my book"

"service was excellent, price for baseline water heater was higher than expected. the angie tool suggested 2700$ max - it ended up being a.bout $3500."

"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!"