Best foundation drain installation pros near Seattle, WA

"Drain Pro Plumbing Inc guys were awesome throughout the whole process. Would Recommend."

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

"Excellent work, all around! The crew was hardworking, and the work performed has stood the test of time. Three years ago, Wu Construction expertly installed a full crawl space perimeter footing drain, brought in drainage gravel, and installed a 1/3 hp sump pump. Also installed a 6 mil black vapor barrier, checked and sealed alle entry points to prevent rodent entry, re-installed all loose inulation and replaced heat duct insulation. The crawl space has remained bone dry, and we've had no further issues with moisture or rodents."

"Prescott came to my house early Sunday morning after having contacted his company the night before. The drains on one side of my house were not working. He first checked the septic tank and then walked me through the steps to clear the drain lines on that side of the house. I had previously located the cleanout access so he was quickly able to examine it. We tested the system and were able to see the blocked drain line, He ran his machine for about 10 minutes start to finish and the blockage was gone. We then then tested, and everything seems to work. It was completely professional from start to finish. They charged me $99 for the service. Plus tax.. They recommended I pump the septic system and I will do so early this upcoming week. After that, they will send a camera crew to run a camera down the lines. I will absolutely call them first if I ever have an issue."

"Excellent! Chad did an extensive evaluation of our foundation and put together a comprehensive plan. He is very professional and knowledgeable. All my interactions with TerraFirma were positive and I highly recommend them."

"Workers took care in preparation and were very efficient cleaning our crawl space and installing the insulation. A pleasure doing business with them."

"Fixed my foundation. Thank you"

"I have a 1906 cottage in N Seattle, with an old porous foundation. Water came into the basement for the first time in 20 years. Another contractor bid the job at $12,000 after 3 site visits and almost a month. Andy came out to the house the same day I talked to him, and estimated the same job at half that price. He followed up with questions, asked about making another visit, came out again and saw that the drainpipe was disconnected at the top of the area being flooded. 75% of the roof's water was pooling against the house. He found a ladder and fixed it and isn't charging me a dime. So, no French drain, no Delta drain, no foundation treatment, no 50' of trenching, no $$$. Andy was timely, reliable, did what he said, and knows his stuff. He was a great communicator, and I feel so so lucky to have found him."

Knockout Plumbing & Mechanical LLC is a local Seattle based company. Knockout strives to leave their clients with peace of mind when each job is said and done. From hydro jetting and sewer repair to remodels/new construction we knock it out. We look forward to hearing from you, so please never hesitate to reach out.

"All Pro Plumbing Northwest came out and gave a good estimate."