Best Tankless Water Heater Replacement in San Francisco CA

Very professional service.

Great service. Eugenio Repetto
He was very knowledgeable. I learned a lot from him. This was the first time I've had any service person come out and they actually seem to know what they were doing. I'd give him an A for excellence. Thanks so much Eugenio.

This is my first time ever leaving a review. I am so thankful for One Sources help at 4:30 am I had to share it. I woke to water coming from the kitchen upstairs through the lights in my downstairs bathroom. A pipe malfunctioned on the dishwasher and was flowing onto the kitchen floor and then flooding the kitchen. I frantically called 4 plumbers who said 24hr service but it turns out they just have an answering service and I was told someone would get back to me. No one did. The 5th company was One Source and he talked me through how to shut off the water which turns out to be pretty easy if you know where to look. I wasn't charged anything and it was just a very nice decent thing to do for someone at that ungodly hour in the morning. Thank you, Thank you!!

Got multiple bids and not only did they have the best price for our water heater replacement, J&J were also the most professional. Knowledgeable and organized, I got a quote quickly (some of the others never even sent a quote after coming out to look… smh), great communications, modern systems (electronic invoicing etc). Isaac came, he did the work, did a great job. Just so professional and a pleasure to do business with, highly recommend!

Great prompt service

They didn’t only fix the issue but go above and beyond to help us cleaning up with tools he has. Super nice, haven’t had this kind of service and kindness for a while.

Sean and crew are the best. That is all.

I’ve been working with Discount plumbing for several years.. Adan is trustworthy, professional, driven, and a pure GEM.. He, Angel, and Samuel are experienced and can handle any problems we have here at Fernmar North. I can depend on Adan 100%...Your the best Adan!!! thank you!

Dennis repaired both of our heating systems within minutes! He found the problems quickly, worked to get the parts and when returning fixed both systems within 15-20 minutes. Dennis is fantastic!

Came out on the same day as called. Great job repairing water heater.

Fast replacement of my water heater. I’m very satisfied.

Excellent, fast very professional

I can't say enough about what a great job Angelo and his crew from Discount Plumbing did with our rental home in Oakland. Angelo called me right away to set up a next day estimate. He and his crew were on time and very thorough. originally, it look like it was going to a straight forward trenchless project and Angelos's quote came in well below several other bids.

Angelo and the crew got to work on time the next day and we were lucky enough to get the once in a blue moon plumbing disaster. A city tree had a root that grew into the line and ran over 52 feet to the house from street. Angelo called me right away and kept myself and my up-to-date with multiple messages as our simple trenchless project turned into a massive multiple trench sewer excavation. After seeing the extensive work that had to be performed it was an incredible relief when Angelo gave us the additional expense from the original quote which was incredibly reasonable. At this point we were at his mercy and I felt that he made sure that he didn't take advantage of the situation. In this day I think this type of honesty is hard to come by and it almost brought me to tears.

Angelo and his crew worked long hours for two days on our little sewer project and they we so professional. The kept the area as clean as possible and communicated clearly with my neighbors, my renter and myself. Angelo was so extremely helpful and positive even as the project got bigger and bigger.

We found Discount Plumbing through all of the fantastic BBB and we could be more pleased than with the support, They earned my highest recommendation and I mean earned it!

I’ve been using AB Plumbing for few years and they’ve done a fantastic job every time specially on the time sensitive matters. They are very professional and offer great quality service. I certainly suggest them if you are looking for a good plumber.

Had a really bad smell in our bathroom. Called these folks up and they were able to schedule someone to come out the very next day (not an emergency for us) at a time that worked for me. The plumber was timely and professional. Took a look at the problem and ended up removing the toilet and replacing the seals. The smell went away but came back a few days later. Called them back and they sent another plumber out again, at my convenience. Again, professional and timely. He took a look and re-caulked the toilet thinking maybe there was still some seal that needed to be sealed. No charge for that call, which I appreciated. He said to call them back if the smell persists and he'd come back with his supervisor who's been in the business much longer and may have more experience diagnosing and discovering the mystery smell. Hopefully I don't have to call them back, but I will happily do so if needed. They have been really great.

Tried to scam us years ago with a video that was apparently our property that needed some crazy project. Next guy I called just came out and fixed the problem, 6 years later here I am recalling it.