
Get matched with top basement waterproofing pros in Maple Valley, WA
There are 12 highly-rated local basement waterproofing pros.
Need a pro for your basement waterproofing project in Maple Valley, WA?
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Verified Reviews for Basement Waterproofing pros in Maple Valley, WA
*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 October 28, 2025
Find Basement waterproofing pros in Maple Valley

Rain Pros Inc
Rain Pros Inc
Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.
"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."
Joan G on September 2025
Rain Pros is Puget Sounds premier full-service sprinkler and drainage company, with a reputation of unmatched customer service and exceptional quality. Our professionals have years of experience in drainage and irrigation installation, repair and maintenance. We are very proud to be growing company and leader in each of our fields. For bid requests regarding the installation of a new sprinkler or drainage system please email our general manager ([email protected]). For drainge repair and inspection requests please contact our service coordinator at (253) 678-7111, additionally you can email- [email protected] to immediately cue for with our service department.
"The work was done quickly and efficiently. Communication was very easy, clear, pleasant. The work was very good and I highly recommend them. The clean up wasn't thorough so they sent someone out immediately to finish the job."
Joan G on September 2025

TerraFirma Foundation Systems
TerraFirma Foundation Systems
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Great; competitive price, installation went great, friendly and responsive staff in person and office"
Andrew M on February 2020
Thousands of NW homeowners have trusted TerraFirma Foundation Systems to keep their homes safe, dry and stable since 2005. Nearly half of our business comes from referrals or repeat customers. We can help you too! TerraFirma is the NW expert in home foundations, basement and crawl space waterproofing, concrete leveling, and wall stabilization.
"Great; competitive price, installation went great, friendly and responsive staff in person and office"
Andrew M on February 2020

Wu Construction
Wu Construction
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025
Wu Construction Inc, specializes in drainage and foundation systems construction and repair. Since our founding in 1983, we have successfully completed thousands of projects for homeowners and businesses throughout the Northwest. We are the best in our industry, and well regarded by our customers for our excellent service. We are lauded for our speedy responses to inquiries, our efficiency and the quality of our work.
"Great communication and thorough work. Would hire again."
Brian J on April 2025

Groundworks
Groundworks
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305
"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"
Charles W on May 2025
Groundworks, formerly, Matvey Foundation Repair is the leading structural and concrete repair firm in Western Washington. We specialize in repairing residential and commercial foundations, concrete slabs, bowing/cracked basement walls, sinking floors, concrete porches, settling/cracked foundations, and other structural issues. We raise and level concrete pavements, driveways, and sidewalks. We also offer basement waterproofing. Our expert design technicians provide professional services for commercial, residential, industrial, government, and municipal applications with award-winning products and superior customer service. CALL US TODAY FOR A FREE ESTIMATE! GROUN**76305
"Very informative. Clear and concise. Gave us many options. Daniel is a wonderful and honest person and was so helpful with our questions. The crew lead by Anthony, with Jordan, Uriel, and Richard did professional work. The finished product is wonderful and can already feel the results in the house. Would 1000% recommend. Just keep in mind it is a very messy job. These guys do the best they can to keep it clean"
Charles W on May 2025
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Andy Construction LLC
Andy Construction LLC
We are not a big company that you have to go through all the phone calls. Owner Andy Zhang will be the one to answer the phone, provide you the bid, and supervise and inspect the work before finish. We are so confident in our work, quality, and over all experience that we don't need any money down. Our customers don't pay us anything until the work is done and customer is happy! For a house on the market, in most cases, we allow owner pay the full bill through escrow at closing. We pride ourselves in treating every customer with honestly.We looking forward to hear and serve you soon!
"They did a great job"
Chris D on May 2025
We are not a big company that you have to go through all the phone calls. Owner Andy Zhang will be the one to answer the phone, provide you the bid, and supervise and inspect the work before finish. We are so confident in our work, quality, and over all experience that we don't need any money down. Our customers don't pay us anything until the work is done and customer is happy! For a house on the market, in most cases, we allow owner pay the full bill through escrow at closing. We pride ourselves in treating every customer with honestly.We looking forward to hear and serve you soon!
"They did a great job"
Chris D on May 2025

Sump Pump Wizards LLC
Sump Pump Wizards LLC
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

P4 Construction, LLC
P4 Construction, LLC
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.
"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."
Bill G on June 2024
We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.
"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."
Bill G on June 2024

Attic Doctor LLC
Attic Doctor LLC
Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!
"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "
Anja C on July 2025
Welcome to your one-stop shop for insulation, rodents and mold! Attic Doctor is a local, licensed contractor providing eco-friendly solutions to all of your attic and crawl space problems. Scratching sounds coming from the attic, when you’re trying to sleep? Mold destroying your roof and air quality? Losing your mind over heating and cooling costs? Call the Attic Doctor!
"Rodent exclusion work - they keep coming back until it’s done! No other rodent exclusion outfits I had out offered any kind of guarantee. After 6 months I needed them again and they were here in a flash! Amazing customer service. "
Anja C on July 2025

JP Ramos Construction
JP Ramos Construction
I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service. We would welcome an opportunity to provide you with a no-obligation consultation so that we can gain a sense of your project needs and discuss how we can add to the beauty of your property’s appearance. Our services are reliable and efficient, I assure you that you will not be disappointed - Call today!
"Jesus And his Helper were awesome cleaning my roof and gutters. Very professional, hard working and fair priced. I would highly recommend them and I will most likely be a return customer!"
Randy R on April 2023
I pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service. We would welcome an opportunity to provide you with a no-obligation consultation so that we can gain a sense of your project needs and discuss how we can add to the beauty of your property’s appearance. Our services are reliable and efficient, I assure you that you will not be disappointed - Call today!
"Jesus And his Helper were awesome cleaning my roof and gutters. Very professional, hard working and fair priced. I would highly recommend them and I will most likely be a return customer!"
Randy R on April 2023

Iron Earth Construction LLC
Iron Earth Construction LLC
We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our
"Very accommodating and great service and product"
Sally K on September 2023
We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our
"Very accommodating and great service and product"
Sally K on September 2023
The Maple Valley, WA homeowners’ guide to basement waterproofing services
From average costs to expert advice, get all the answers you need to get your job done.

Crawl space repair costs can seem intimidating, but putting them off can lead to bigger issues. Learn about repair costs in this guide to set your budget.
•Discover how much sump pump installation costs, including average prices, key cost factors, and tips to save on your basement waterproofing project.

Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.

Learn what home flood detection systems are, how they work, where to install them, and why they can help minimize water damage in your home with this guide.

A basement offers additional living or storage space, but if it leaks, it can become a significant headache. Learn how to fix a leaky basement and prevent water damage.

Is basement waterproofing worth it even if you’re experiencing some or no water-related issues? Find out more about this preventive measure here.
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