Set it up, they get it done, reasonable price. What else could you ask for? I have passed every…read moreyear without studying for the test!

Quick and professional service. I have been using them for five years and always excellent.read more

My neighbor to recommended this family owned business, and we will be lifetime customers. Excellent…read moreservice, on time, completed as promised, easy to schedule, no hassle. Could not be happier. If you need Backflow testing - this company is a definitely must!

Three different companies initially misdiagnosed our issue. Ally was the only one who hung in theto…read moremake it right. Because of their patience and persistence to find a fair, workable solution, I intend to use them when any future plumbing needs arise.

Ally Plumbing was more than fantastic. I received multiple quotes to replace my hot water heater…read moreand selected them. When they went to install the new heater they ran into a significant unforeseen condition. Multiple different people had to come to my house / the project to evaluate the issue. All of them were polite, professional, and responsive. Ally Plumbing quickly found a solution to the unforeseen condition and were able to execute the change quickly. They were in a position where they could easily have taken advantage of me, but instead chose kindness, understanding, and professionalism to resolve the issue. On top of all this, I learned they are a local business. Honestly, I have been recommending them to everyone that needs a plumber since my unfortunate incident. They are simply the best.

The owner freaked out and started screaming "Seattle Fagxots!" over and over like he was insane…read more He's a tool, his name is Tony Damele and he's creepy AF.

Read the low reviews. They say it all. Plenty of other companies in the area that will value your…read morebusiness and be respectful.

I've been a customer of Certified Backflow Testing for nearly 20 years. I didn't leave over price…read moreor convenience. I left because of how they handled a mistake. After their technician serviced my backflow preventer this spring, my irrigation system stopped running. I didn't realize it right away. By the time I noticed, my lawn had already browned out and some plants were damaged. When I raised the issue, it took 2-3 weeks of back and forth to get nowhere. Certified Backflow didn't put the valve back to how they found it, which was in working condition. Their procedure states they restore valves to the position in which they are found, but they did not follow this procedure and won't take accountability for it. Management's first response was to hide behind policy rather than acknowledge what happened. They did send their GM out to look at the damage, which I appreciated. But even after seeing it firsthand, they couldn't provide any evidence that the technician left the shutoff valve in the correct position, and they offered nothing toward the damage caused. Mistakes happen. I get that. But after 20 years, I expected better. Finding a new provider.

While the field backflow testing service itself was adequate, the company's back-office operations…read moreare poorly managed and unacceptably disorganized. Their reminder system is not aligned with municipal requirements, and their billing and accounts receivable processes are fundamentally flawed. I was repeatedly told by staff that a prior invoice had not been paid, despite the fact that I retained written confirmation showing the payment was submitted through their Intuit QuickBooks link and acknowledged with a "thank you for your payment" email. Despite providing this documentation, the company unilaterally canceled a scheduled service appointment the day before it was to occur, citing non-payment. When confronted with proof, the explanation shifted to a claim that they "never received the funds from the credit card company," which is not a defensible position to place on a customer after confirming receipt. These outdated business practices, inconsistent internal communication, and lack of basic financial controls introduce unnecessary risk for clients. While I had initially intended to continue using this company, the operational failures and resulting service disruption make them unreliable and difficult to do business with. There are other providers who can deliver the same service with greater professionalism, transparency, and reliability, and I will be pursuing those alternatives going forward.

It feels like all the Backflow companies want to just take your money and expect you to trust them…read moreto do the test for you at some point before it's due. Oh, but you have no idea whether that's this week, next month, 4 months from now - who knows! Not Backflows Northwest. I called them to make sure the rates were accurate, and to get an idea of when they would do the test. The guy was super nice, and he said he'd do the test on Wednesday, and they said they'd leave a note on the door when it was completed. They did it a day early, and left the note on the door just like they said. This was exactly the ideal experience in my opinion, so I strongly recommend them!

Their technician showed up, presented me with a piece of my equipment that was now broken (wasn't…read morebefore they arrived) & said he could NOT do the test because it was broken. The company then billed me over $75 for the test that was never performed. No matter how much I argued or what proof I provided they demanded payment. Additionally, I subsequently had to pay another company to fix what they broke and to perform the test. If I could rate them negative 10 I would!

5 stars is not enough for this amazing business. DM Kelly Mechanical went above and beyond in…read moresaving the day for my elderly mom that had not one, BUT TWO plumbing issues at once. I was out of town when we learned her kitchen faucet was spewing water from the spray hose. On top of that we noticed her water bill had recently spiked and Barry found a massive leak under the crawl space due to a broken gate valve. He jumped on both issues and went out of his way to source a new faucet assembly then professionally replaced the sink faucet. He then cut and replaced the ball valve under the crawl space and re-insulated the assembly to protect it from the weather. Get this! I am out of town and my mom was so upset about the simultaneous issues, she broke out in tears and Barry stopped working, then took the time to sit on the couch to comfort her. Capable, kind and compassionate! Kolton took our original call and is a perfect gentleman and consummate professional, he scheduled us right away and he returns phone calls. DM Kelly Mechanical has set the standard for outstanding service and are simply wonderful people. They have our highest recommendation.

We had a block in our sewer line between our house and the main in the alley. We had been fighting…read moreit for some time and finally decided to get some professional help. We worked with Mason from DM Kelly Mechanical, got a solid quote and the crew was out in less than a week. The collapsed sewer line was replaced and attached to the Main in one day. Between the time of receiving the quote and start of work all of our questions and concerns were answered promptly and respectfully. The cost was competitive and reasonable and the work, when finished, was cleaned up and neat. It went from a trench extending under our cement fence foundation into the alley to a neatly filled hole ready for grass Seed. A great crew and exceptional work we would recommend to anyone.

Prompt, friendly service. They make scheduling your backflow appointment easy! Additionally, once…read morethe test is complete, they send the results directly to the water company.

Matt is awesome! He is very professional. I've used Matt for 3 years now. My recent backflow for…read moremy home failed and Matt was able to point us to the right direction and even came back without a charge. He filled out all the necessary paperwork and forward them to our utility company. Highly recommended.

I recently had a problem that I attempted to correct myself and ended up needing help. My toilet…read morehad a leak because the wax ring was old and falling apart. So naturally, I did some research and ended up contacting Zoom Drain. They wrote me back immediately and were able to send out Jeremy Linson to come out and give me a quote, it was a little spendy, but worth it due to his technical proficiency, expedience, and willingness to spread some knowledge, plus I got hooked up with a minor discount! A big shout out and thank you to Zoom Drain and your tech Jeremy, if I have issues in the future you guys will be my first contact! Thanks You

Did not get the job done, left my side yard with inches of muck and mud and my garage door was…read morecovered in mud. When I brought it up, I was basically called a liar and that the crew left the work area in great shape. Took me hours to clean up their "great shape". Would not recommend.

They are professional and easy to work & comminate with, and always complete the job timely.read more

I haven't used another backflow service, but I can't imagine anyone could top Terry's service. Been…read moreusing her for 10yrs. If I follow her around & she explains what she's doing. She explained in detail: allowing mole mounds inside valve boxes causes corrosion of the valves which means they malfunction & need to be replaced -- keep moles out by brick bottom & sealed holes. If a part is bad, she has the replacement. When she's done, your sprinkler valves are set for the season.