5 Star Backflow Services
Company Overview
5 Star Backflow Services provides licensed backflow evaluation and maintenance solutions. We are licensed.
Our coverage extends to:
In the northern region of Seattle: Mount Vernon
East of Seattle: Kirkland,
In the southern region of Seattle: and more.
5 Star Backflow Services consistently delivers offering top-notch support and competitive rates. Established in 2014 and running by 2015, our owner, Josh, has expertly served his customers. With a decade of expertise in backflow testing and water management, Josh is equipped to manage any challenge that comes up with your backflow. As a family-owned company, we guarantee clear dialogue and top-quality support at all times.
Before founding 5 Star Backflow Services, Josh worked for several years in public works with a local municipality in the Eastside region. In that role, he grew interested in safe water practices and gained a keen interest in the operation of backflow systems. Josh is certified as a backflow assembly tester and specialized plumber. He has previously held licenses for water distribution management and cross connection and is a graduate of the UW.
Business Services
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
Business Location & Hours
Mon: | 8:00 AM - 5:00 PM |
Tue: | 8:00 AM - 5:00 PM |
Wed: | 8:00 AM - 5:00 PM |
Thu: | 8:00 AM - 5:00 PM |
Fri: | 8:00 AM - 5:00 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Responded quickly. Scheduling was easy. Prices are great. Documentation of the test result was emailed to me and the utility district same day. I couldn't have asked for anything better. I will definitely contact Josh again next time I need a backflow test.

Thank you Joshua for going above and beyond to help me with my backflow mess.
Whoever installed my backflow system had placed cinder blocks underneath and obstructed the ability for access. After digging for hours and actually damaging the pipe Joshua is more than helpful and instructing us how to repair.. What would have cost us $600 only took us time and energy.. and a few dollars for hardware store supplies.
After the pipes were fixed the back flow system reinstalled Joshua came out for a second time to test the backflow.change the filters made the necessary repairs cuz it failed the first time, submitted the paperwork and now I'm good to go for a year. He was also able to contact the water district that was requiring this process now as they did not issue me the number associated with my property. Thank you sir for what you've done I'll be sure to contact you next year for my next required test..
I've already passed his number on to my neighbor who also is in need..I will also post his number on my neighborhood watch for all those who might need to get theirs done as we have all received this notice..

Josh handled our backflow services for the City of Bellevue. He took care of all the paperwork and made the process quick, easy and straightforward. I had a question for him on another item relating to our water system and even though he wasn't making any money, he talked me through the problem so I was able to easily fix it. I highly recommend these guys.

This is about as easy as it gets. They take care of everything for you including sending the report to the city.

Super-friendly and helpful. Very patient with all my questions! I highly recommend them.

Josh wasn't able to do the work I needed but called me back and referred me to another source within a couple of hours!

Im glad I found 5 Star Backflow. I would give 10 stars if it was possible. Detail oriented from start to finish. Excellent customer service. Great prices, the best in town. Thank you Leslie for taking care of both of my companies.

I recently used their service to check my backflow system, and I was impressed with their customer service. Josh give me fast and helpful feedback every time, and when he came to my home, he suggested me honestly how to deal with a problem. He was kind, professional, and reliable. Strongly recommend!

Josh is just an awesome professional! I contacted him about the sprinkler system leak, and twenty minutes later he is in front of my house investigating! We had severe leak, our HOA said it'll cost us $1000 to replace it (I was shocked) and they didn't even stop the leak. But Josh came in, stopped the leak with just a screw driver, and saved us tons of money. He was even trying not to charge me, so I had to force him to charge me something. Josh is very honest man who tries to help you as much as he can, suggest you what could be done better, will tell you his tips, he just truly cares! He tries to solve the problem asap and get 100% customer satisfaction. Even weeks later he tries to check back and see if Im not having any problem.
I still might have other problems around the backpressure, and he is the number person to contact! I highly recommend anybody. Im sure even if he can't solve it himself, he'll still try to point you in the right direction!
Good luck to you Josh, in your business!

Requested a quote through Yelp, for our annual backflow testing at our house and he was the quickest of 3 to respond. Communication was prompt and professional and scheduling was easy. He arrived on time and later that evening he emailed/submitted the results to the City and CC'ed me to have as a record.
Price was fair and will be using again next year.