Expert Advice On Improving Your Home

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11 Best Foundation Companies in Issaquah, WA

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

Last Updated: February 25, 2025

While foundation repair is typically costly and time-consuming, not fixing foundation problems could lead to serious, expensive consequences in the future. You may be worried about how long it will take to complete a foundation repair on your Issaquah home. You may also be concerned about whether you'll be able to remain in your house while the project is being done.

To assist homeowners with finding quality foundation services, we compiled a list of top-rated and highly reviewed foundation repair companies serving your area. Continue reading to see our top picks and learn about the best foundation repair companies in Issaquah, 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 Issaquah

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

Good customer service

Free quotes

Services Offered

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

Wet Basement Services

Wet Basement Services Logo

Our Rating

User Rating

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

Good customer service

Transparent pricing

Helps educate customers

Free quotes

Services Offered

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

Perma Dry Waterproofing & Drainage

Perma Dry Waterproofing & Drainage Logo

Our Rating

User Rating

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

Helps educate customers

Free quotes

Services Offered

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

R&R Foundation Specialist

R&R Foundation Specialist Logo

Our Rating

User Rating

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

Free quotes

Punctual service

Good customer service

Helps educate customers

Services Offered

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

Basement Expert Waterproofing of Seattle

Basement Expert Waterproofing of Seattle Logo

Our Rating

User Rating

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

Transparent pricing

Good customer service

Punctual service

Helps educate customers

Free quotes

Services Offered

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

1-866-SLABJACK

1-866-SLABJACK Logo

Our Rating

User Rating

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

Punctual service

Helps educate customers

Good customer service

Free quotes

Services Offered

Driveways
Inspection
Sidewalks
Repair
Grading and leveling
Waterproofing
Concrete

Seattle Foundation Repair

Seattle Foundation Repair Logo

Our Rating

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

Rainy Day Basement Systems

Rainy Day Basement Systems Logo

Our Rating

User Rating

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

Punctual service

Free quotes

Services Offered

Sump pumps
Mold remediation
Waterproofing
Inspection
Concrete
Repair
Crawl space encapsulation

TerraFirma Foundation Systems

TerraFirma Foundation Systems Logo

Our Rating

User Rating

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

Helps educate customers

Good customer service

Free quotes

Services Offered

Crawl space encapsulation
Mold remediation
Concrete
Retaining walls
Waterproofing
Repair

All Seasons Waterproofing and Drainage, Inc.

All Seasons Waterproofing and Drainage, Inc. Logo

Our Rating

User Rating

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

Free quotes

Good customer service

Services Offered

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

Foundation & Basement Waterproofing Of Seattle

Foundation & Basement Waterproofing Of Seattle Logo

Our Rating

User Rating

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

Transparent pricing

Punctual service

Free quotes

Services Offered

French drains
Waterproofing
Inspection
Masonry
Repair
Crawl space encapsulation
Mold remediation
Sump pumps
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

Working with a qualified foundation repair company is important for accurately evaluating the damage and making the right repairs. We suggest focusing on these key factors.

Experience

Find a local foundation repair company with comprehensive experience fixing all foundation types. It should have expertise in the latest repair techniques and materials. Ask how long a company has served your area.

Reputation

Looking through online reviews, checking the Better Business Bureau, and requesting local references helps confirm that a company consistently provides quality work and good service. Pay attention if you see many complaints about faulty repairs or poor service.

Licensing and Insurance

It's important to select a provider that has valid credentials, bonding, and coverage for liability and workers' compensation. There are no state-level licensing requirements for contractors in Washington, but all must register with the Washington State Department of Labor & Industries. To register, contractors must be bonded and insured. You can check with your city or county government to learn about any additional local regulations. There may be additional requirements for contractors to do certain concrete work.

Warranties

Pick a company that offers warranties of 10+ years that you can transfer to a new owner if you sell and, if possible, lifetime guarantees to fully back its foundation repair services. This displays confidence that the company's work is top-notch and provides protection should problems come up later.

Questions To Ask Foundation Repair Companies

To compare foundation repair companies, you should ask detailed questions such as:

  • Can you provide a complete written project scope and cost estimate? Asking for a quote in writing helps shield you from unexpected expenses.
  • What type of guarantees do you offer? Trustworthy providers typically offer warranties of minimum 10 years on labor and materials.
  • What options do you have for financing? Providers often offer payment plans for larger foundation repairs.
  • What do you see as the likely cause of my issues based on your inspection? Look for clear explanations and solutions in the answer. Companies that provide unclear answers may be attempting to bill you for unneeded work.
  • What exact repair method would you recommend for my specific situation and why? Your provider may offer options such as carbon fiber, steel piers, and wall anchors. Asking allows you to compare suggested solutions between companies.
  • How long will repairs realistically take to complete? Look for providers that provide reasonable estimates.

Carefully reviewing foundation repair companies will help you select the right one for you. Providers that can thoroughly answer these questions will likely deliver high-quality, durable repairs. Promptly addressing foundation issues helps avoid future structural damage.

Frequently Asked Questions About Foundation Repair in Issaquah, WA

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

  • Visible crumbling or cracks in your foundation
  • Uneven basement or ground-level floors
  • Bowing, buckling, or cracked walls
  • Door frames or window frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, Issaquah homeowners spend around $3,042 on foundation repair. The amount you'll spend on foundation repair is based on a number of factors. Things like the type of repair needed, the extent of the damage, and the size of your home will all factor in. The best way to find out how much a job could cost is to reach out to a local foundation repair expert and schedule a free inspection and estimate.

The primary types of foundation repair include crack repair, leak repair, underpinning, stabilization, and waterproofing.

Crack repair and leak repair are exactly as they sound: your foundation repair expert will perform an inspection and complete any repairs necessary to remedy cracks or leaks. Costs will depend on the size and cause of the issue.

Underpinning, also called piering or leveling, is when a contractor levels your foundation by underpinning it with large concrete piers. The price will be based on how many piers are required. The price of stabilization is also variable. This process reinforces bowing walls with carbon fiber or steel strips. The total cost will depend on what material is used and how many strips are used.

Lastly, waterproofing is an overarching term for a number of jobs intended to prevent water from getting into your foundation or basement. This can include exterior waterproofing, interior waterproofing, or both, and the price can vary greatly. We recommend contacting a waterproofing specialist if you're interested in waterproofing your foundation.

If you're building a new house, have a soil report completed. A soil report will contain information regarding how well your soil can support a foundation, and can give you a heads-up about potential future issues. If you have concerns about an existing home, a few hundred dollars will cover an inspection and report by a structural engineer. They can point you to any current problems that need attention, and give you advice on how to avoid future problems.

Also ensure that the moisture around your foundation is at an appropriate level. As Issaquah 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 quickly.

Your foundation repair expert should acquire the needed permits. You can ask the company to provide a detailed explanation of the steps in its process and to see the paperwork and permits it has acquired to verify that everything is properly authorized per Issaquah regulations.

Generally, foundation repairs will have a positive effect on the value of your home. In some cases, you may be able to consider foundation repair a capital improvement, which can sometimes help you qualify for tax breaks. A capital improvement is generally defined as one that adds to a home's overall value, prolongs its life, or adapts it to new uses. Speak with your Washington tax professional to learn more.

We recommend that you do not put off foundation repairs. A single issue may have an underlying cause that could lead to numerous future problems, and it's better to get ahead of the issue as soon as possible. A small and moderately costly problem now could turn into a large and expensive one in the future if the signs are ignored.

Other Issaquah, WA Home Services