Top-rated basement leak repair pros.

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TRUSTED BY SUMNER, WA HOMEOWNERS

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  • Verified reviews icon135
    Verified basement leak repair services reviews

Find Basement leak repair pros in Sumner

Avatar for TerraFirma Foundation Systems

TerraFirma Foundation Systems

932 Industry Dr
5.00(
8
)
Approved Pro

TerraFirma Foundation Systems

932 Industry Dr
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
91 local quotes requested

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


Avatar for Olympia Floor Source

Olympia Floor Source

2831 54th Ave SW
5.00(
24
)
Approved Pro

Olympia Floor Source

2831 54th Ave SW
5.00(
24
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
29 years of experience

We are a company built of third and fourth generation flooring installers. We know floors and we consider the installation an art. For your commercial or residential floor, we offer carpet, laminate, hard wood, LVP, VCT, sheet vinyl, tile and more! We also offer expert installation, carpet re-stretches and other repairs. Our installers are licensed general contractors and also offer certain home repairs, carpentry, water damage remediation and remodel / renovation services. We have an outstanding record of service! Give us a call and we will be happy to give you a quote on any job; large or small.

"Everything went good and the carpet looks great. Would definitely recommend Olympia Floor Source if you need your carpet done right."

Deon H on March 2025

We are a company built of third and fourth generation flooring installers. We know floors and we consider the installation an art. For your commercial or residential floor, we offer carpet, laminate, hard wood, LVP, VCT, sheet vinyl, tile and more! We also offer expert installation, carpet re-stretches and other repairs. Our installers are licensed general contractors and also offer certain home repairs, carpentry, water damage remediation and remodel / renovation services. We have an outstanding record of service! Give us a call and we will be happy to give you a quote on any job; large or small.

"Everything went good and the carpet looks great. Would definitely recommend Olympia Floor Source if you need your carpet done right."

Deon H on March 2025


We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!


"My real estate team has worked with Alfredo Gomez multiple times now throughout the Seattle area. Alfredo has done excellent work for our clients at affordable prices. He is very responsive and a delight to work with. We'd recommend Gomez Remodeling to anyone needing work done on their house, from small handyman tasks to larger projects"

M D on November 2025

we are experts in all remodels that have to do with: *Kitchens *Bathrooms *Interior and exterior painting *Fence and Decks*Roofing*Laminate Flooring*Drywall*wood and metal Framing

"My real estate team has worked with Alfredo Gomez multiple times now throughout the Seattle area. Alfredo has done excellent work for our clients at affordable prices. He is very responsive and a delight to work with. We'd recommend Gomez Remodeling to anyone needing work done on their house, from small handyman tasks to larger projects"

M D on November 2025


Avatar for Dario's Renovation

Dario's Renovation

5.00(
2
)
Approved Pro

Dario's Renovation

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
48 local quotes requested

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Floors look great. Reasonable price."

Karen P on March 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business, we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"Floors look great. Reasonable price."

Karen P on March 2025


Avatar for Groundworks

Groundworks

18915 16th Ave S
4.44(
162
)
Approved Pro

Groundworks

18915 16th Ave S
4.44(
162
)
Approved Pro
Customers say: Super punctual
38 local quotes requested
28 years of experience

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


Avatar for OCF Construction Inc

OCF Construction Inc

Based Out Of
5.00(
5
)
Approved Pro

OCF Construction Inc

Based Out Of
5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
79 local quotes requested

We offer a variety of remodeling services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The contractor and his team were honest, hardworking, and respectful. They are good people who know their jobs well and completed the work quickly and efficiently."

Fartun A on October 2025

We offer a variety of remodeling services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The contractor and his team were honest, hardworking, and respectful. They are good people who know their jobs well and completed the work quickly and efficiently."

Fartun A on October 2025


Avatar for Andy Construction LLC

Andy Construction LLC

2333 NE 94th St
5.00(
20
)
Approved Pro

Andy Construction LLC

2333 NE 94th St
5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 local quotes requested

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


Avatar for Rain Pros Inc

Rain Pros Inc

31620 23rd Ave S, #306
4.87(
389
)
Approved Pro

Rain Pros Inc

31620 23rd Ave S, #306
4.87(
389
)
Approved Pro
Customers say: Super punctual
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
248 local quotes requested

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


Avatar for TotalFix Contractors LLC

TotalFix Contractors LLC

19128 112th Ave NE, Unit 426
5.00(
5
)
Approved Pro

TotalFix Contractors LLC

19128 112th Ave NE, Unit 426
5.00(
5
)
Approved Pro
11 local quotes requested
1 years of experience

At TotalFix Contractors LLC, we specialize in high-quality fencing, concrete work, foundation repairs, and drainage solutions across the Seattle area. Whether it?s a new installation, repairs, or upgrades, our experienced team delivers reliable results with a focus on durability and customer satisfaction. We serve both residential and commercial clients with honest pricing, fast turnaround, and clean work.

"Had some cracks in my driveway that really needed fixing. These guys did an awesome job?showed up on time, explained everything in a simple way, and got it all done pretty fast. Now the concrete looks brand new. Super easy to work with and they cleaned up nicely too. I?m really happy with how it turned out."

Mika A on June 2025

At TotalFix Contractors LLC, we specialize in high-quality fencing, concrete work, foundation repairs, and drainage solutions across the Seattle area. Whether it?s a new installation, repairs, or upgrades, our experienced team delivers reliable results with a focus on durability and customer satisfaction. We serve both residential and commercial clients with honest pricing, fast turnaround, and clean work.

"Had some cracks in my driveway that really needed fixing. These guys did an awesome job?showed up on time, explained everything in a simple way, and got it all done pretty fast. Now the concrete looks brand new. Super easy to work with and they cleaned up nicely too. I?m really happy with how it turned out."

Mika A on June 2025

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Basement Leak Repair questions, answered by experts

Many prevention methods can be used individually or in combination to waterproof your basement. Some of the most common waterproofing methods include:

  • Using dehumidifiers 

  • Silicate concrete sealers

  • Vapor barriers 

  • Baseboard channels 

  • Drain tile systems

  • Waterproofing paint

  • Drainage systems

  • Epoxy injection

  • Interior French drains

  • Exterior excavation and waterproofing

  • Cement waterproofing

  • Weep tiles

  • Liquid membrane

  • Sheet membrane 

  • Yard grading

  • Gutters and downspouts

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

To determine if your basement walls are suitable for finishing, assess their structural integrity and moisture conditions. Look for any signs of damage, such as cracks, bowing, or excessive moisture. Ensure proper drainage and address any underlying issues before proceeding. 

Consult with a professional if you're uncertain about the structural stability or potential risks associated with finishing your basement walls.

Yes, many contractors offer warranties for their work. Confirm terms before starting the project.

The Sumner, WA homeowners’ guide to basement leak repair services

From average costs to expert advice, get all the answers you need to get your job done.

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