Plumbing reviews in San Francisco, California

John came on time, was knowledgable and fair, worked through a rain storm and did work at a fair price. Couldn't be happier.

John was great. Right on time. Knowledgeable and trustworthy. 👍🏻❤️

These guys are great. They use technology to improve the entire experience, are on time and on schedule. Love these guys.

Great work. John Cook is friendly, efficient and professional

Great service with quick response.
Plus fee much less than others for city requirement.

Super easy to work with, professional and prompt. Couldn't ask for better service.

Excellent service! Perfect. On time, knowledgeable and and quality work. Thanks so much.

They do the backflow test for a commercial space every year and we will continue to use them. Great company which is easy to work with.

We use 1 Backflow Plumbing every year for the city inspection, and they are always very easy to deal with and very efficient.

I'm very happy with the services that 1Backflow Plumbing provided. They were on time, efficient, knowledgeable, and courteous.

The response time and service were excellent, however, I am still having problems with getting hot water to our downstair's faucets.

1 backflow plumbing is amazing scheduling was great. Very helpful will continue to use for future jobs

The best plumber we’ve ever have!!!

If you need a great plumber, call John
at 1 backflow plumbing!

John is very knowledgeable. The workers are helpful, skilled, and respond quickly. Would work with them again 👍

Adrian was courteous and professional. Helped clarify how many pipes we needed to check and was quick to verify. Thanks Adrian!

Performed a thorough back flow test

John was prompt, efficient, and well experienced. A pleasure to work with him. Thank you

Adrian is a great guy. Polite and pleasant. Excellent job! I highly recommend him.

Great service from Adrian. I appreciate Adrian waited patiently for my contractor to open the door for him. Highly recommened.

John Cook did all the plumbing work in my house in San Francisco. This was a big job consisting of 3 bathrooms and kitchen. During my interview process, John took notes as to what I wanted done. John email the proposal with a full explanation of the work, cost and timing. I had work with many contractors and never had one that fully listen to my demands. The proposal clearly show John paid attention. The icing on the cake was a job well done and completed on time. In fact, there were issues discover during the demo process which would have cost me more money but John took care of them and did not charge me.

My water heater was leaking so I called some plumbers that I found online . Most of the plumbers either referred me to an appointment and didn't call me back or told me they couldn't give me a ballpark estimate to
install a standard residential water heater . When I called One Backflow Plumbing , John answered and was very
considerate and professional . He gave me an estimate , came the next day on time and completed the job and some extras quickly and professionally leaving
no mess . I will recommend One Backflow to my friends and family as a
trustworthy contractor .