Knockout Plumbing & Mechanical LLC

I had an emergency waterline leak situation. I called several companies. Knockout was the first to respond and came quickly. They were professional, fair, and very communicative throughout the process. I am very happy with how it all turned out. I will call them again in the future.

I got a couple quotes for a rough-in plumbing job on our permitted addition in Bellevue(ADU kitchen, bath and laundry plus water heater and kitchenette). We ended up going with Knockout Plumbing. Zach, Colin, Jon and Shannon were all a pleasure to deal with. They really went out of their way to make sure I was happy. Plumbing passed city inspections on the first inspection. Thanks Knockout :)

We woke up to a flooded basement due to leaking water heater and a discovered we also had a faulty water valve. We called Knockout Plumbing and they were able to come out and give us a quote, get the parts and install all in the same day. We appreciate their speedy response excellent workmanship and fair price!

The aerator fell out of our faucet and I couldn't figure out how to fix it. I called Knockout Plumbing and they were very responsive and could drop by very fast. Zach was very friendly, courteous, and followed the pandemic protocols. He explained how to fix the problem myself to save time and gave me a great discount since it was such a minor repair!

Josh replaced my sink faucet which was dripping for months. He was respectful and helpful in every way. It was extremely refreshing to deal with a plumber who has manners, good communication skills, as well as proficiency. I can’t say enough how grateful I am that we found him.

I bought a fixer upper in Seattle that required significant repairs. I got a few quotes for some projects from plumbers in the area and NO ONE was as nice, professional and respectful as Zach and the team at Knockout. I am so impressed with everything they have done around this house to make it that much more liveable! I have already recommended them to everyone I know, will continue to do so, and will absolutely be back if I need more help! Thank you!!!!!!!

Knockout installed a replacement bilge pump on my Chris-Craft. They were affordable, timely and professional. I noticed the engine bay was full of water and Colin and Zach came to the rescue. They pumped it out and installed a new automatic pump so I don’t have to worry about coming home to a sunken live aboard. Since then I have referred them to a few friends and I imagine I will be using them for years to come.

I had the pleasure of working with Knockout Plumbing this morning. I had a referral to call the company and when I called, I immediately got Randi on the phone.
I work in the phone industry and its such a pleasure to speak to someone right away who has such a friendly voice and is extremely knowledgeable.
Based on my initial experience with Knockout and Randi, I highly recommend Knockout! Keep up the great customer service!

Zach, Collin, and Randi are great professionals to work with. Knockout Plumbing has been my Go To Plumbers for the residential commercial properties I manage for 2 years. Professional, quality workmanship, punctual, can do attitude — 5 STAR all the way.

Extremely professional, knowledgeable, and just all around incredibly helpful. Colin was excellent, and their staff was helpful with scheduling. I cannot recommend them enough, and plan to use them for every project or plumbing need going forward.

These guys are great! They are super communicative so you know where they are and when they will be there so you aren't sitting around waiting. The work they do is top notch. Definitely aren't there to get as much money out of you as possible...they want to do good work. I also love how good they are about cleaning up and being respectful of the house. I can't say enough good things! The only plumbers we will use.

Knockout Plumbing fixed my leaky sink efficiently and cost effectively. I appreciated their professional manner, timeliness and friendliness. I will definitely be reaching out again should any plumbing or mechanical issues arise in my home.

These guys are very responsible and very responsive. We are doing a renovation of a large scope. We are a logistical challenge for these guys because we are on opposite ends of the county. They have always met their time commitments or given ample notice when things had to change. As we all know, we do not live in a perfect world and things sometimes go wrong. This job is no different. But, here is the proof of their commitment. They have taken responsibility when that happened and come a long distance to make things right and without complaint or dragging their heels. I have seen plenty of folks that would simply falter in their commitment. Not these guys.

They are always pleasant and upbeat. They make suggestions about better ways to do things. This has been an exceptional experience. We probably will never need to do something like this again, but if we did we would call them.

Thank you Knockout Plumbing.

I use Knockout Plumbing for both my workplace and my home. Silas and Colin are amazing. They are reasonable and also made sure to inform me of the problems at hand and the solutions. I will be sure to use them again and again for all my piping needs.

Arrived quickly and determined that the problem was a defect in the water heater that was reimbursable under warranty. Fixed the water heater so it would work pending arrival of parts.

They did an outstanding job diagnosing and fixing the problem. The price seemed fair given the extent of the work. And they cleaned up afterwards, which showed me they really care about their work. I highly recommend them.

Amazingly professional, quick, efficient, communicative. Came out for an emergency at the very last minute and fixed our issues ASAP! Will not use any other company other than these folks. Simply the very best.

Very professional guys. Had them look at my pipes because winter is approaching and wasn't blown away with a high estimate like other plumbing companies try to drop on me. Showed me what I need to fix and gave me some ideas to consider.

Colin came to my client's home to provide an estimate for a water heater and re-piping. On time, courteous, thorough and answered all of my client's questions.

I was just getting quotes and these guys were the easiest to listen to by far. My house is built in 53 and doesn't have all the updated components a new house does so they showed me what I need and where it could be installed and it was so painless.

Definitely my first call for urgent repairs or routine maintenance. As a restaurant owner, it's comforting to know the team at Knockout is just a call away.

Got to be the most honest and trustworthy bunch of knuckleheads ive ever had out to my place. Ive been searching for a company that wont let me down for years, I found that company with Knockout Plumbing&Mechanical!

I've known Zach for a long time. He is always our go to plumbing expert for all of our construction projects. He is a true professional of his trade.

Came out on short notice and moved a gas line for me so that I was able to keep my remodel on schedule. Friendly and efficient.

Prompt. Fast. Good quality.

Quick and courteous. Brandi was a very pleasant.

Great work. Very dependable, everything from large to small projects.

Efficient work, great communication, and excellent service.

Responded quickly. Did a through and good job

They are fast, professional, and reliable

Very good