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11 Best Foundation Companies in Maple Valley, WA

More than 300 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Repairing your foundation requires a lot of time and money. However, neglecting foundation repairs can result in major and costly issues. Living somewhere, like Maple Valley, that gets a good deal of rain can increase your risk of foundation issues, as water can accumulate and seep through the concrete.

To help, we've put together a guide to top foundation service providers in your area. Keep reading to find top-rated foundation repair companies in Maple Valley, Washington.

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.
Top Pick
4.9/5
  • Full-service foundation repair company
  • Expert technicians with strong customer reviews
  • Available in 33 states
Best Warranty Options
4.7/5
  • Offers free in-person and virtual evaluations
  • 87+ years of industry experience
  • All repairs backed by a lifetime transferable warranty

Top 11 Best Foundation Companies in Maple Valley

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Groundworks

Groundworks Logo

Our Rating

User Rating

18915 16th Ave S, SeaTac, WA 98188 (253) 327-1650 groundworks.com

Free quotes

Good customer service

Services Offered

Driveways
Sump pumps
Crawl space encapsulation
Waterproofing
Retaining walls
Repair
Concrete
Mold remediation
Inspection
Sidewalks
Grading and leveling

Wet Basement Services

Wet Basement Services Logo

Our Rating

User Rating

7351 148th Ave NE, Redmond, WA 98052 (425) 877-0845 wetbasementservices.com

Free quotes

Helps educate customers

Transparent pricing

Good customer service

Services Offered

Retaining walls
Waterproofing
Inspection
Repair
Sealing
Mold remediation
Crawl space encapsulation
Grading and leveling
Masonry
Concrete
French drains
Sump pumps

Perma Dry Waterproofing & Drainage

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User Rating

608 SW 12th St, Renton, WA 98057 (425) 277-1990 permadrywaterproofing.com

Helps educate customers

Free quotes

Services Offered

Repair
Sump pumps
French drains
Concrete
Inspection
Mold remediation
Retaining walls
Grading and leveling
Driveways
Sealing
Waterproofing
Crawl space encapsulation

R&R Foundation Specialist

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Our Rating

User Rating

1611 E Marine View Dr, Everett, WA 98201 (425) 760-5077 rrfoundationspecialist.com

Punctual service

Helps educate customers

Free quotes

Good customer service

Services Offered

Repair
Retaining walls
Masonry
Waterproofing
Inspection
Crawl space encapsulation
Concrete
Grading and leveling

Basement Expert Waterproofing of Seattle

Basement Expert Waterproofing of Seattle Logo

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User Rating

20722 12th Ave W, Lynnwood, WA 98036 (206) 388-7867 basement-expert.com

Good customer service

Transparent pricing

Free quotes

Punctual service

Helps educate customers

Services Offered

Inspection
Grading and leveling
Sump pumps
French drains
Repair
Mold remediation
Crawl space encapsulation
Waterproofing

1-866-SLABJACK

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User Rating

6116 211th St SW Suite 204, Lynnwood, WA 98036 (866) 752-2522 1866slabjack.com

Helps educate customers

Punctual service

Good customer service

Free quotes

Services Offered

Grading and leveling
Repair
Waterproofing
Inspection
Concrete
Driveways
Sidewalks

Seattle Foundation Repair

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User Rating

1546 NW 56th St Unit 526, Seattle, WA 98107 (206) 889-6751 seattlefoundationrepairs.com

Transparent pricing

Good customer service

Services Offered

Mold remediation
Inspection
Repair
Waterproofing
Masonry
Crawl space encapsulation
Grading and leveling
Concrete
Retaining walls

Rainy Day Basement Systems

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Our Rating

User Rating

18931 59th Ave NE SUITE 5, Arlington, WA 98223 (360) 435-6992 rainydaybasementsystems.com

Punctual service

Free quotes

Services Offered

Concrete
Inspection
Crawl space encapsulation
Waterproofing
Repair
Mold remediation
Sump pumps

TerraFirma Foundation Systems

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Our Rating

User Rating

10111 S Tacoma Way # D5, Tacoma, WA 98499 (866) 486-7196 goterrafirma.com

Helps educate customers

Free quotes

Good customer service

Services Offered

Waterproofing
Crawl space encapsulation
Concrete
Mold remediation
Repair
Retaining walls

All Seasons Waterproofing and Drainage, Inc.

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Our Rating

User Rating

8828 206th St SE, Snohomish, WA 98296 (425) 577-6293 allseasonswaterproofing.com

Free quotes

Good customer service

Services Offered

Crawl space encapsulation
Waterproofing
Retaining walls
Driveways
Repair
French drains
Sump pumps
Mold remediation
Sealing

Foundation & Basement Waterproofing Of Seattle

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Our Rating

User Rating

6525 Fauntleroy Wy SW, Seattle, WA 98136 (206) 333-4968 foundationbasement.com

Transparent pricing

Free quotes

Punctual service

Services Offered

Inspection
French drains
Sump pumps
Waterproofing
Crawl space encapsulation
Repair
Masonry
Mold remediation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on foundation companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Foundation Repair Company

You need a good foundation repair contractor to properly assess issues and make appropriate repairs. Do thorough research and focus on these key factors when looking for the right company.

Experience

Pick a local foundation repair company with deep experience fixing all kinds of foundation problems. It should have expertise in the latest repair methods and materials. Ask how long a company has served your area.

Reputation

Spend time checking online reviews, browsing the Better Business Bureau, and asking for local references. This will help confirm that a provider consistently delivers good workmanship and professionalism. Take note of any complaints describing faulty repairs or poor service.

Licensing and Insurance

Only hire providers that are properly licensed, bonded, and have both liability and workers compensation insurance. In Washington, there are no state-level licensing requirements for contractors, but all must register with the Washington State Department of Labor & Industries. Registration requires contractors to be bonded and insured. Be sure to check with your city or county government to learn about any additional local requirements. Contractors may have to meet additional requirements to do certain work with concrete.

Warranties

Look for a company that provides lengthy transferable warranties for a minimum of a decade, preferably lifetime guarantees, to back its foundation repairs. This demonstrates faith that its services are top-quality and safeguards you if issues come up in the future.

Questions To Ask Foundation Repair Companies

When comparing potential foundation repair companies, be sure to ask detailed questions such as:

  • What repairs do you recommend for this situation, and why? Your contractor may provide options such as carbon fiber, wall anchors, and steel piers. Asking allows you to compare suggested solutions between companies.
  • What do you see as the likely cause of the problem based on your inspection? Look for clear explanations and solutions in the answer. Companies that provide vague answers may be attempting to bill you for extra work.
  • Realistically, how long will repairs take to complete? Look for companies that provide reasonable estimates.
  • What financing options do you offer? Providers often offer payment plans for larger foundation repairs.
  • Can you provide a complete written cost estimate and project scope? Asking for a quote in writing helps shield you from unexpected expenses.
  • What type of guarantees do you offer? Reputable companies often offer warranties of at least 10 years on labor and materials.

Carefully assessing foundation repair companies helps homeowners identify the best fit for their needs. A company that can answer the above questions likely delivers durable, high-quality repairs. Repairing foundation problems swiftly lowers the risk of future structural damage.

Frequently Asked Questions About Foundation Repair in Maple Valley, WA

There are a variety of signs that your foundation is in need of repair. These can include:

  • Visible crumbling or cracks in your foundation
  • Uneven ground-level or basement floors
  • Cracked, bowing, or buckling walls
  • Window frames or door frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, Maple Valley homeowners spend around $3,042 on foundation repair. The total cost of foundation repair depends on several factors. Things like the size of your home, the extent of the damage, and the type of repair needed will all help determine the cost. The fastest way to learn how much a job is going to cost is to talk to a local foundation repair company and schedule a free inspection and estimate.

Types of foundation repair include leak repair, crack repair, stabilization, underpinning, and waterproofing.

Leak repair and crack repair involve a technician coming to your home, performing an inspection, and using various measures to fix leaks or cracks. The amount you spend can vary greatly depending on the size and root cause of the problem.

Stabilization is the process of fixing bowing walls by inserting steel or carbon fiber strips. The amount you spend will depend on the material chosen and how many strips are needed. The cost of underpinning also varies. This process, sometimes referred to as piering or leveling, involves underpinning your foundation with concrete piers to level it; the cost depends on how many piers are needed.

If you're interested in waterproofing your foundation or basement, we recommend finding a waterproofing specialist. This process can include outdoor waterproofing, indoor waterproofing, or both.

When constructing a new home, have a soil report completed. A soil report will contain information regarding how well your soil can support a foundation, and can offer you a heads-up about potential future problems. If you have concerns about an existing house, for a few hundred dollars, you can get an inspection and report by a structural engineer. The engineer can alert you to any current problems that need attention, and give you advice on avoiding future problems.

Also ensure that the moisture around your foundation is at an appropriate level. As Maple Valley sees more rain than many other places, keep an eye on your gutters and landscaping to make sure too much water isn't getting into your soil or foundation. Also, be on the lookout for leaky pipes or gutters, so you can get them repaired promptly.

A permit is normally required for foundation repair, but acquiring one won't be your responsibility. Your foundation repair professional should get all the permits and other documents required in Maple Valley, and should be able to provide the documents and/or explain the process if asked.

It's smart to ask your foundation repair company about this question before starting any project. Typically, yes, you should be able to remain in your home while foundation work is being done.

In some cases, foundation repairs can be considered capital improvements if they fit the criteria of an improvement that adds to your house's overall value, prolongs its life, or adapts it to new uses. In some cases, making capital improvements helps you qualify for tax breaks. (Speak with your Washington tax professional to learn more.) Tax breaks aside, foundation repairs will generally have a positive effect on the value of your home.

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