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Backflows Northwest

3.8 (46 reviews)
Closed 8:00 am - 4:00 pm

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Response quality

Excellent

Response time

2 days

Services - Backflows Northwest

Plumbing inspection

Plumbing installation or replacement

Plumbing repair

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1 month ago

Reasonably priced irrigation repair & pleasant to work with...will use them again. Always have them do our back flow testing.

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Chris S.

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1 year ago

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Chris S.

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2 months ago

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8 months ago

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8 months ago

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9 months ago

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Chris S.

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9 months ago

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8 months ago

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1 year ago

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1 year ago

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2 years ago

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Chris S.

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2 years ago

Got back to me in a timely manner. Was very kind to go through the process. Found a time that worked for the technician and me.

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2 years ago

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2 years ago

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2 years ago

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Chris S.

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2 years ago

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3 years ago

Easy to request the service. Price quoted was accurate! I will use them again and recommend them.

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Chris S.

Stacy G. - Thank you for the 5 star review! We appreciate it.

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4 years ago

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5 years ago

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4 years ago

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5 years ago

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3 years ago

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6 years ago

This company is professional, efficient, and priced just right. I would recommend them. Thank you

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Chris S.

We're glad to be able to help out, we will see you next year!

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5 years ago

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6 years ago

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7 years ago

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8 years ago

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6 years ago

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7 years ago

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5 years ago

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5 years ago

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5 years ago

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7 years ago

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Chris S.

Thank you for such kind words Leslie. We will see you next year!

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8 years ago

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5 years ago

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5 years ago

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6 years ago

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9 years ago

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9 years ago

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6 years ago

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Page 1 of 2

Ask the Community - Backflows Northwest

Review Highlights - Backflows Northwest

I want to thank them for taking care of back flow testing that was required by the water company.

Mentioned in 2 reviews

Read more highlights

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5 Star Backflow Services - Owner of 5 Star Backflow Services

5 Star Backflow Services

(47 reviews)

VERIFIED THE BEST! The City of Mercer Island sent notice that we needed a backflow test. The notice…read moreincluded a list or 40 companies that were approved by the city. I loaded all 40 of them into my Claude AI program and asked the AI to tell me which one was the best. Which one had the highest ratings and had no bad feedback. It came back stating that 5 Star Backflow was the BEST of the 40 approved companies! I then called Josh, the owner of 5 Star Backflow, and he and his team worked around the clock to help me because I was up against a deadline. His communication with us was spectacular and thanks to him our water did not get cut off. We even had a complication with the backflow valve being broken, but he got it taken care of and he went way above and beyond to help us. I wish I could give him a 100 stars, because he is the real deal and he deserves a great review. If you need a backflow company, 5 Star Backflow is the absolute best! Thank you Josh!

I've been using 5 Star Backflow Services for my required city backflow inspections for years now…read moreand I've always been happy with the service, so it's probably time for a review. Once they had me in their system, they started contacting me in advance to schedule the test each year, which I really appreciate since the city notice doesn't usually give a lot of turnaround time. This year the city surprised me by sending the notice a month early, and I was on vacation when the notice came. This left me with just over a week before it was due. I contacted 5 Star Backflow Services and they were able to do the test just a couple days later. After the test they always send the report directly to the city within 24 hours. I have been very pleased with the service. Thank you!

Homeservice Plumbers - Homeservice Plumbers - The Plumbers You Can Count On!

Homeservice Plumbers

(142 reviews)

I had emailed Homeservice last night @ 9:20.....received an email within 15 min...& was able to get…read moresomeone over by 8:30 this morning. The worker, Jacob, was right on time & quickly went to work repairing the age old clogged drain issue in kitchen sink. He worked hard & was able to get everything working perfectly. Appreciated his transparency about pricing along with trying to save me $$$$ wherever he could. He was very personable, professional, & cleaned up everything!!! Certainly will call this company again if needed...& ask for Jacob!!

Homeservice Plumbers did great work for us on a clogged downspout drain. We had success clearing…read morethe first portion of the drain, but needed professional assistance with clearing the rest of the blockage. Eli did a through job up to 50' limit of his auger tool. Based on what I've recently learned with roots growing through drain pipes, I would opt for clearing drain pipes with a mechanical auger rather than a hydro jet since something is needed to cut out the roots. After the initial drain clearing, we paidfor an additional service to get a camera into our drain to see if there was any additional blockage. Hudson answered our questions about whether there were any additional blockages up to 100' (there were none), the path and slop of our drain pipe, and the location of low points in our drain pipe with a tool that identified the exact location of the camera. Though the cost of the appointment to use the camera was not inexpensive, I appreciated that we did learn useful information from the use of the camera.

Backflows Northwest - backflowservices - Updated May 2026

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