Get matched with top tankless water heater installers in Black Diamond, WA

"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!"

"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."

"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."

"several repairs were made at a reasonable price. pointed out leaking water heater that is 11 years old and should be replaced. their quote to do so is comparable to other providers. will use schmittys for the replacement."

"Drake was superior in communication, efficiency and customer service. He explained all that needed to be completed with replacement of my water heater with ease and understanding. Will definitely call for all plumbing needs as they arise."

"A woman gave me a reasonable estimate, a standard price, for replacing my water heater over the phone! They installed it the next morning. Also gave me estimates for some other jobs I am considering. Nice guys. Good work."

"These guys were amazing! We had the plastic water intake valve behind the toilet burst and spray water everywhere at 4am. after cleaning up the mess we called Cahill's at about 6:45am and they arrived by 8:30am to fix the valve, which took them like 15 minutes. I asked them about doing all of the valves in the house (16 total) and they agreed to come back at noon to do all of them. At exactly noon they were back at my house and had all the valves changed out in less than 2 hours. They were friendly, clean, polite, and provided excellent customer service. Jason and Harry were the team that came to my house and I would highly recommend them. And thanks to Russell, the owner, for giving us a great deal on the work his team did. We will be calling on Cahill's for any future plumbing needs."

"He did amazing work at my rental, new sulp pump and redid the plumbing for a bathroom we remodel"

"They answered my phone and made the appointment for me, really fast. The next day, their technician showed up and got the water heater replaced within an hour. Also, their price is very good compared to other companies. Highly recommend."