Get matched with top tankless water heater installers in Seattle, WA

"Talk to the guy who is doing the job. Great communication. Fast friendly and reliable. New water heater had a defect. Returned and completed the whole install a second time. No extra fee!"

"My water heater tank stopped working so I decided to convert to a tankless system. Chad and George were who I worked with. I had a great experience with both of them. I was very pleased with their knowledge, work, communication and help. I would highly recommend them to other house owners."

"Austin with Twin Water Heater did an amazing job converting our traditional tank water heater to a tankless system. He was knowledgeable, professional, and took the time to explain the entire process and answer all of our questions. The installation was clean and everything turned out great. I especially appreciated how transparent he was about the work that needed to be done and the cost—there were no surprises or pressure to add anything unnecessary. You can tell he really cares about doing the job correctly and making sure his customers are happy with the end result. We’ve been loving the tankless system and having endless hot water! I would absolutely recommend Austin and Twin Water Heater to anyone looking for a water heater installation or tankless conversion."

"After hours tech was on site within 8 hours of our call and our heat was back on two hours after arrival. Very straightforward and professional."

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

"I have used this plumber for over 4 years now - they respond immediately to any concern, are the most honest and fair people out there! Anything from simple drain clear, or water heater install, to a side sewer and complete DADU plumbing installation…they do it all, and with great communication! I pass their name and number to anyone who is looking for an honest and reliable plumber!"

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,

"My technician arrived at 9:00 am and did not leave my home until 6:00 pm. He installed a new water heater, removed my old water heater and fixed a hot water leak under my home. HE ASSURED ME THAT HE WOULD NOT LEAVE UNTIL ALL THE WORK WAS COMPLETE. HE WAS ABSOLUTELY GREAT!!!!!!!!! After the work was complete he performed a complete clean up of his work area. I will need some electrical work done in the future and HARTS will also be doing that work. They are professional, on time, and extremely knowledgeable on the work they perform. THEY HAVE MADE ME A LOYAL CUSTOMER FOR LIFE."

"The quality was great and the plumber was incredibly friendly, easy to work with. My only concern was I was never provided pictures of the tub surround as discussed and not given the option to chose, just got what was picked out for me. This was a pretty big 4-day project, re-pipe of water, sewer lines, new tankless water heater, new tub and 2 new toilets. I do not love that 2 different toilets were installed. Again, I was not consulted about the style of toilets."

"My water heater failed and was leaking water. Mark came out and replaced and installed a new water heater quickly and efficiently. I will use him for any future issues."