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."

"They were prompt, efficient, kept to the time limit so the cost was very reasonable. They did the best they could to clear the drain even though it was a tough one."

"Easy to work with, very responsive and professional. Would highly recommend them for any foundation work."

"These guys were great, and the owner, Jo Estrada, a pleasure to work with. A crew of 5 spent 5 hours cleaning, inspecting, and replacing insulation and vapor shield in our crawl space. They took pictures of everything, before and after. THe crew was pleasant, and worked really hard.... couldn't believe how much stuff they removed from under there. The crawl space is tight, but they didn't complain (at least to us!). They gave us good recommendations for some repairs needed for the foundation. All for a most reasonable price, compared to other estimates. They deserve every star they can get!"

"From consultation to completion the team at Groundworks handled our foundation repair with care and professionalism. Matthew came to the house and stayed to answer every question and explain every detail. He took the time to complete a bid while onsite and walk us through the process. (BTW their permitting department and financing through GreenSky really helped!) When the work started the first team of Alex, Iuni and Luis, were exceptional (they pier leveled the footing). We got texts the moment they arrived at the property and they got right to work, completing their part right on time. They worked as quietly as possible and kept us informed of the progress. The second team for foam leveling our slab and led by Daniel, got it all done in part of a day. They were also courteous and even helped move furniture. When the work of both teams was finished Alex, the foreman, walked us through an inspection and answered all our questions. Finally, Matthew circled back at the end and made sure"

"Outstanding work and value. Andy was quick to respond and came out the next day to assess what we needed to do to improve the drainage in our crawlspace. The home is built on a sloped lot. Andy suggested a full perimeter drain install around the foundation. The work also included complete replacement of the vapor barrier. All work was performed efficiently and Andy backed it up with a lifetime warranty. I couldn't be happier with the end result and would highly recommend Andy and his crew."

"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 will be using Schmitty's Plumbing for all of our plumbing work from now on! We were able to get an appointment quickly, and Brian was on-time, pleasant, and professional. He was clear upfront about costs and options, explained the work that was needed, and quickly made the needed repairs at a reasonable cost. We are very happy to have found a plumber that we have confidence in."