F6 Backflow Services,LLC

Highly recommend F6 Backflow Services! From the very first phone call to the completion of the repair, they were absolutely amazing. The entire team was extremely professional, knowledgeable, and genuinely helpful. Customer service is clearly their number one priority. They showed up exactly when they said they would, communicated clearly throughout the process, and made everything easy and stress-free. I couldn’t be happier with the experience and would absolutely recommend F6 Backflow Services to anyone needing backflow work. Outstanding service from start to finish!

It’s rare to find a company like F6 Backflow that truly cares about its customers and delivers top-notch service every time. Dave is not only incredibly knowledgeable and professional, but he’s also just an all-around great guy who goes above and beyond. He takes the time to explain everything and makes the whole process easy and stress-free. I wouldn’t trust anyone else with our backflow testing — hands down the best in the business! Thank you, Dave and the whole F6 team, for your outstanding work. Keep it up! ⭐⭐⭐⭐⭐

I have a great experience with F6. Dave was very professional, responsive and helped me to understand the backflow annual test and city requirements. I will definitely recommend them to provide services!

Dave at F6 Backflow did an outstanding job job. I got the report right away. I like companies that measure up. And this one did. Call Dave for all your test, inspections and repairs on RPZ and DCV.

Great service all around! Happy to have found F6 backflow. Actually, my experience was similar to Steve M(positive F6 review from 2 months ago) where I had used another company for years, but in 2022, that company replaced the whole backflow unit $1250, then in 2024, had a $635 repair to pass, then in 2025, they said I needed a new unit again. That company is Armor Fire. Now back to F6. I had told Dave about my other company prior to him testing the unit. Dave did a fast turnaround testing the unit, and it PASSED the City requirement on the first time. Great company, will use them yearly now!

F6 responded quickly, completed the job and submitted backflow test results to the City of El Mirage. I highly recommend!

I called and the backflow valve was repaired the same day! Great service, great price. Highly recommended this company!

Our small HOA recently had our backflow valves tested for 2025 by the company we had used for years. We had a problem with one of the valves last year and had it replaced to the tune of $850. Imagine our surprise when we got the results of this year's testing and the same valve failed again and, once again, needed to be replaced. After multiple attempts to speak with the company, we finally got an email saying that those valves are not very sturdy and the AZ heat causes them to fail routinely. Since the valve was less than a year old, that didn't make sense to us, so we decided to bring in another company for a second opinion. That was when we found F6 Backflow Services. We spoke to Dave, the owner, on the phone and explained our situation. He said it sounded "off" to him, too, so we made arrangements for him to come out, take a look at it, and see what he could do. He came out the next day and did some clean-up of the housing - and a couple of other things that I admittedly didn't understand. When he hooked up his gauges and retested, lo and behold, the valve passed. We can't thank Dave enough for his honesty and professionalism. Needless to say, F6 Backflow Services will be our provider going forward and we look forward to working with them in the future.

Was looking for a knowledgeable person who specializes in Backflow systems, Dave promptly arrived to quickly assess vthe problem, had repair parts on hand was done in no time. The cost was fair, and I will use his services if ever needed again.

I was referred to F6 Backflow from a plumbing company and they did not disappoint. The owner Dave took my call, was as friendly and knowledgeable as I can ask for and was at my site the next morning to inspect and certify all 3 of my backflows. After they completed the certification was automatically sent to the city and when he emailed me my invoice is was exactly what he had quoted. Btw… his pricing was also better than anyone else I got a quote from. Thank you F6!