4.2 
71 *The Angi rating for Basement Waterproofing companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
*The HomeAdvisor rating for Basement Waterproofing companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.
Last update on April 24, 2026
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"They insulated our garage. They did a great job. Timely and they did a great job cleaning up after they were done."
+46
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"I had a patio that was in need of leveling. They knew exactly what to do and did it in a day. It looks great and I am very happy."
+33
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2011
Free estimates
Warranties offered
"We will know more in the winter when it rains, but the work done went exceptionally well!"
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2006
Credit card accepted
Customers say: True professional
"We hired Puget Sound B&R for basement remodeling and Dan did a fantastic job managing the project. The crew was hardworking, respectful, and detail-oriented. Our basement now feels like a completely new living space. Great experience from start to finish with outstanding workmanship."
+23
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2012
Free estimates
Credit card accepted
"Excellent service and very thorough with explanation and getting the right. I researched many skylight installation companies and decided to hire Ari and Elijah. I will recommend my colleagues and friends and family. I will absolutely use this roofing company for any roof work on my house."
Serving Maple Valley, WA and surrounding areas
Approved
In business since 1983
Free estimates
Emergency services offered
"Greg and his team were wonderful to work with from the start. It's going to improve our house and our life to stop having water in the basement everytime it rains. We can finish our basement and actually use the space now! Thanks for being so easy to work with and delivering a quality drain system."
+11
Serving Maple Valley, WA and surrounding areas
Approved (Corporate)
In business since 1995
Free estimates
Emergency services offered
"They made my cracked driveway look like new. With the stabilizing they did, itâ ll last another 100 years! Very happy with my basement also!"
+16
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2002
Free estimates
Credit card accepted
"JP Ramos Construction, LLC DBA Oasis Landscaping & Drainage did an excellent job from start to finish. The concrete driveway installation was completed professionally, efficiently, and with great attention to detail. The crew was reliable, respectful, and kept the work area clean throughout the project. They communicated clearly, answered all of my questions, and made sure everything was done right. I’m very happy with the finished driveway and would definitely recommend JP Ramos Construction / Oasis Landscaping & Drainage to anyone looking for quality work and great customer service."
+19
Serving Maple Valley, WA and surrounding areas
Approved
In business since 2021
Free estimates
Emergency services offered
"We’ve had a lot of crews in our home for various projects over the years, and I have to say this was one of the most courteous. They worked hard, navigating through our kitchen to access the basement and I really appreciated their efforts. Thank you MTU, we now have safe walls in our cellar and fresh beams to keep the house standing ;)"
Serving Maple Valley, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2023
Free estimates
Warranties offered
"Iconiq Construction Service did an amazing job finishing our basement. The team was professional, efficient, and detail-oriented. The results were outstanding, creating a functional and beautiful space. Highly recommend their services!"
+2
From average costs to expert advice, get all the answers you need to get your job done.
Need to fix basement water problems or safeguard your home in Seattle, WA from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
An unfinished basement has a lot of potential. So, how much does it cost to finish a basement in Seattle, WA? Read on for all cost factors.
Find out the average basement remodel cost in Seattle, WA. Learn what you can expect to pay for local basement finishing services and plan your budget today.
Dealing with a damp basement? Follow these steps for DIY basement waterproofing to keep water and moisture out and boost your home’s energy efficiency.
Struggling with a damp basement? Learn about basement waterproofing and how these tips can help keep your basement safe from the elements.
Can’t seem to get rid of the moisture and mold in your basement? Learn why basements tend to hold moisture and how to get rid of moisture in the basement.
