Offered best pricing for our annual backflow testing required by Golden State Water. Terrific…read morecommunication from all field and office staff. Will keep them in mind for our future testing needs!

This was one of the easier companies to deal with as far as receiving a quote and setting up an…read moreappointment. Reasonably priced as well. Requested a quote to test a backflow for our wholesale nursery via email which Jan provided promptly. She then copied the tech, Riley, who would do the test, into the email to have the appointment set up. Riley showed up as promised and performed the test without any issues. An invoice and completed backflow test was emailed to me along with different ways to pay. Credit card payments are an option and no service fees are charged to use this method. Thank you Riley and Jan for providing such great service! We would definitely recommend Atlas Backflow to anyone looking for testing services.

After receiving a woefully poorly constructed letter in the mail from my city that required…read moremandatory backflow repairs, I reached out to a number of vendors to help with my backflow repair. Some didn't respond, others couldn't do the services, others still only did commercial products. Pro Backflow on the other hand was responsive, offered reasonable prices, and ample availability. During my appointment, I found the service tech offered a good explanation of what he did and offered to file the paperwork for me with the city. My only two points of improvement is the service technician started the work on my house without even knocking on the door or meeting me. I just started hearing drilling. At best, it didn't matter, at worst, it could have been the wrong house! Second, I never hear back for days after the service tech left. I had to reach out to offer my final payment and figure out if they filed my paperwork. Overall good, but Pro Backflow can clean up the edges a bit.

Jaime was extremely quick to answer my questions! We set up a time and spoke before hand what he…read morewas going to do. Our Backflow was over 20 years old and had its days. And we had our shut off to our house replaced, including the valve. 28 years this shut off always hit the house to shut off. Jaime reversed it and now it's simple. Waited too long to change that out!! Jaime is a Professional and knows 100% all that he does! Could not ask for a better Professional and a job that was so expertly done!!! He also works on his jobs like it was his property, he takes pride in his work you can tell!!! Would always call on Jaime for any of these needs!!! Overall - EXCELLENT!!! TRUSTWORTHY!!!

These guys are the absolute best in the industry. When my old guy said he wasn't doing it anymore…read morehe suggested Backflow Brothers...very happy he did. Quick response and very professional. They earned my business for life!!

They were able to test my unit the same day I called. The tester was very polite and knowledgeable…read more Highly recommended!

John was so nice and helpful in explaining what the backflow does and what could be the problem (it…read morewas leaking a lot). Prior to scheduling the appointment, we received an estimate for repair and also a repair for replacement--- it was nice to have both options. No surprises. He ended up repairing it. He double checked after the repair to make sure nothing was leaking and he left no mess for me to clean up. He even had a few minutes to meet and play with Duke and Rocky (my labrador retrievers) I love doing business with nice people.

Finally! A backflow testing company that is professional and reliable. I've struggled in the past…read moreto find a legitimate backflow testing company. Let me tell you, this is them! The entire process was so smooth, One Flow Los Angeles surpassed all my expectations. Thank you!

R&R is the best. They've tested our commercial backflows for years. They do the job at a…read morereasonable price and quickly. Our system is a little complicated to get into since we have to keep the homeless people OUT, but R&R never complains. I LOVE working with them!

Always professional responsive and reasonable. Thank you for the great service in the past years…read more Richard(R&R)

Jonathan provided excellent service with installing a required backflow prevention valve in my…read morecommercial property. He contacted me with an estimate very quickly after my tenant notified me of the requirement. Jonathan was professional in installing the valve according to the city requirements. I was unhappy with the city not allowing the valve to be installed outside. Jonathan did his best to place the plumbing inside at a less noticeable location. I appreciate his patience and attention to excellent service.

So good that after leaving a review on Google, I'm also leaving a review here on Yelp. Jonathan was…read moreterrific. He was prompt, he was thoughtful, and went beyond a normal backflow test. This is not my first rodeo with getting backflow tests performed, so I can tell you confidently that I recommend these guys. Long story, but I manage my wife's parents house in Los Angeles. I live in Seattle. I used Yelp to look for backflow testers, but the reviews for each of the results were rather sketchy. I ended up finding this company elsewhere, and because of the bad experience I had with all these weird reviews of dishonest plumbing services on Yelp, I wanted to be sure to give him a shout out here, to let others like me know that this guy is legitimate. My best to you all.

I highly recommend Hydro Backflow for Backflow Prevention Device testing. I received numerous…read morequotes as high a $270 but Hydro did it for $65 as quoted. They came within the window and the testing was done promptly. They turned in the original form to the City of Santa Monica for me. Amazing service!!

Respond and arrive pretty quickly, fair pricing to fix my leaking backflow pipe. Will call them…read moreagain for future annual tests etc

Great service and competitive pricing…read more Thank you very much. I will call you again next year

Awesome services with quick responses and friendly/professional staffs!…read more We strongly recommend Backflow Testing Pros.

1st Class Backflow is excellent! Reached our for our annual backflow testing, and as always,…read morescheduled in a timely manner with great service and communication, and their rates are great! They are First Class!

Great communication . Exceptional service! Reasonably priced! This guy is the most professional,…read morefamily oriented and friendly human being I've ran into in a long time. It was a pleasure doing business with him.

I love these guys. Carlos and Juan not only find out what's wrong and fix it, they do their best to…read moreprevent things going wrong down the line. They try to save you money if they can, but also can see how to head off future problems. They will work with you if you are on a budget, and even throw in a freebie here and there if they can. They send you pictures before they leave! They're fast, dependable, and thorough. I can't praise them enough!

Father and son showed up and really knocked out the job quick and saved me a bunch of money…read more I am still in disbelief. The last company came by quoted so much money in labor just to get started i am glad I found so cal plumbing service!!