Atlas Backflow handled our company's annual backflow testing, and we had a great experience. They…read moreare very reasonably priced, and communication with Jan was smooth, professional, and efficient. She helped schedule the appointment, and everything was completed on time as promised. Excellent service and very reliable. Highly recommended!

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!

We had an issue with a stolen backflow pipe. They were very reasonably priced and they were also…read morethe most prompt of all the vendors I had reached out to. Thank you for your service, I will reach out when we need backflow testing during the next cycle.

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.

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!

I'm a commercial property owner and I've been using R&R Backflow Testing and Service for quite a…read morefew years now. I can honestly say that doing business with them is always a positive experience. They respond quickly and get the job done in a very professional and pleasant manner. I highly recommend R&R Backflow Testing and Service.

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!

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.

Juan came out promptly and he is very intelligent, friendly and competent. My simple snake job had…read morea bigger issue. Juan identified it and took all measures needed to fix. I previously have had several plumbers out over the past years, and after a couple months my kitchen drain would always clog again. Juan got to the root of the problem that the others didn't. My drain now flows more freely than since I bought this place. Side note - you can contact them through the Yelp app here. I never tried this before, but it allows you to explain your issue and to get their response and availability. They responded quickly through the app, the same way as a text might get a quick response. I highly recommend - thanks Juan!!!

Carlos is great!!! He showed up on-time, figured out the…read moreissue with my kitchen sink, offered same-day fix for a reasonable price and got the job done nicely and perfectly. Hard to find a trustworthy plumber sometimes. I'm glad I found one!