Get matched with top foundation drain installation pros in Maple Valley, WA

"I cannot speak highly enough about P4. From start to finish, Eric and his team demonstrated professionalism, reliability, and a commitment to the quality of their work. They provided fair and transparent pricing, took the time to explain our options, and helped us choose the best approach for our drainage work without any pressure. Every phase of the project was handled with precision and care, and the results exceeded our expectations. If you're looking for a company that delivers exceptional results, offers fair pricing, and stands behind their work with integrity I highly recommend P4."

"French drain installation along a retaining wall (75 yards). Thomas who handled the sales end of things was friendly and responsive. The crew showed up on time. They were hard working and receptive of customer feedback. They first removed the ivy that was obstructing the work area and then completed the trench on day 1 which uncovered some of the unwelcome water sources. A legacy footing drain was plumbed directly into the main french drain pipe. Perpherated pipe was dropped in on Day 2 followed by river rock, catch basins, and 3 ft dry well installation. Cleanup was done thoroughly. I would hire them again in a heartbeat."

"I needed only scope and locate my 4" sewer pipe from an exterior cleanout to the house. Rescue Rooter gave me a discount for the work. John the plumber came out. He has 26 years of experience and was very knowledgeable and skilled at using the camera. I've been doing remodeling for 30 years including plumbing installation (drain pipes, copper water pipe repair and installation). In addition to using the electronic locator, he also went old school in using witching sticks to confirm the location of the pipes."

"Had a sump pump installed. Haven’t had a repeat of the problem."

"Water had always been a problem for my crawlspace, especially during raining and snowing season. Asking around, installing a French drain and a sump pump appeared to be the solution. I searched around and picked Insulation Co. Estimation without inspection seemed weird at first, but it made totally sense since the foundation layout is all there in the files. Jo had always been responsive, detailed and nice whenever I had questions. Scheduling was easy and Rafael and the team did a great and efficient job onsite. 2 months after the installation, we noticed that there was still standing water and they came back to install more pipes and gravels. We really appreciate the effort."

"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."

"Outstanding owner and operator of this concrete business. Rome excavated, installed rock, and finished the concrete for a pickleball court, shed pad, and extension to my driveway. Everything was done perfectly and on time. Exceptionally pleased with the work, workmanship, and the people he hired to complete a multi concrete and excavation project. So very thankful he called during my initial call for help. Excellent job and Rome leaves this project with a lifetime friend in me."

"They did a great job on my concrete installation project!"

"We had a tricky leak that needed tracking down. We could hear it, but not see it. Our usual plumber was not available, so found Schmitty's on AngiesList and called. Thankfully, he was available to come out that afternoon, and after some detective work we finally narrowed down the area. It was evening by then, so he brought Trace out first thing in the morning to dig under the foundation and expose the leak. Between the two of them, they solved the issue... which turned out to be not one, but four pinholes in the copper pipe underneath the cement slab foundation. Brian said it might be the trickiest soldering job on the least amount of available pipe (1/4") in a very tight area in 20 years. Their pricing was reasonable and fair for an emergency service. Would definitely call them again. Thanks Schmitty!"