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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Your foundation doesn't just keep your Issaquah home secured. It also stands guard against water damage and erosion. If you see standing water, shifting walls, cracks, or sticky doors, a Issaquah foundation expert can locate and fix the problem before it worsens. We've compiled the top Issaquah foundation repair companies, so you can find the right one for you.

10 Best Foundation Repair Companies in Issaquah

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Top Rated Provider
Perma Dry Waterproofing & Drainage Logo
Top Rated

Perma Dry Waterproofing & Drainage

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 115 reviews


608 SW 12th St, Renton, WA 98057

(425) 277-1990

www.permadrywaterproofing.com
Seismic Northwest Logo

Seismic Northwest

4.2/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 24 reviews


9817 SE Shoreland Dr, Bellevue, WA 98004

(206) 257-1133

seismicnorthwest.com
Wet Basement Services Logo

Wet Basement Services

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 37 reviews


7351 148th Ave NE, Redmond, WA 98052

(425) 877-0845

www.wetbasementservices.com
Matvey Foundation Repair Logo

Matvey Foundation Repair

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 437 reviews


18915 16th Ave S, SeaTac, WA 98188

(253) 327-1650

www.matveyconstruction.com
Robbins & Co Logo

Robbins & Co

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 31 reviews


1228 S 140th St, Burien, WA 98168

(206) 244-1023

robbinsfoundationsystems.com
Ram Jack West Foundation Repair Logo

Ram Jack West Foundation Repair

4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 55 reviews


19904 Des Moines Memorial Dr S, SeaTac, WA 98148

(877) 726-5225

ramjackwest.com
Seattle Foundation Repair Logo

Seattle Foundation Repair

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 46 reviews


1546 NW 56th St Unit 526, Seattle, WA 98107

(206) 889-6751

seattlefoundationrepairs.com

Sound Seismic Earthquake Retrofitting

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 76 reviews


7543 15th Ave NW, Seattle, WA 98117

(206) 352-5644

www.soundseismic.com
All Seasons Waterproofing and Drainage, Inc. Logo

All Seasons Waterproofing and Drainage, Inc.

4.3/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 20 reviews


8828 206th St SE, Snohomish, WA 98296

(425) 577-6293

allseasonswaterproofing.com

1-866-SLABJACK

4.8/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 295 reviews


6116 211th St SW Suite 204, Lynnwood, WA 98036

(866) 752-2522

www.1866slabjack.com

Facts about Issaquah

  • Average Max Temperature:
    54°F
  • Average Min Temperature:
    41°F
  • Average Monthly Precipitation:
    5.90”
  • Percent of Homes With Basements:
    68%
  • Average Cost of Foundation Repair:
    $3,042
  • Average Cost of Foundation Waterproofing:
    $3,194

Common Causes of Foundation Problems in Issaquah

A few common reasons why Issaquah homeowners encounter foundation problems include:

  • Improper modifications: Landscaping or roofing work that wasn't completed to standard could lead to your foundation settling.
  • Standing water: Water accumulation around your home can threaten your foundation's integrity, especially when it gathers in areas your gutter system doesn't protect.
  • Aging plumbing: While many Issaquah homes are fairly new, some still use cast-iron plumbing. When the pipes start eroding, leakage could reach your foundation and even pool beneath it.
  • Soil composition: Soil with large sand or clay concentrations is highly expansive. In the heavy rainfall Issaquah experiences, the soil soaks up moisture like a sponge, then releases it in dry seasons. The constant expansion and contraction stresses nearby foundations, even if the foundations stay dry.
  • Tree Roots: Tree roots can encroach on a home's foundation through crevices, and may exert pressure that results in your foundation fracturing, pipes rupturing, and overall structural weakening.

How to Choose the Best Foundation Repair Company

Your home's integrity weighs heavily on its foundation. It's essential to select the best team possible. Focus your research on these qualities:

Licensing and Experience

Washington foundation repair companies can be either general or specialty contractors. Look for companies with a concrete certification, showing that they follow best practices in the foundation field. You can also get a sense of a company's experience through the details its representatives share. Inquire about its inspection processes, local codes, permit-pulling procedures, and fees. Another way to determine a company's standing is to examine its website. There, you can learn how long it's been in business and its trade qualifications. It might also share knowledge and insights through blog posts, podcasts, or videos.

Customer Reviews

When you're researching a company's standing, visit its Better Business Bureau (BBB) profile. There, you can find its "letter grade" rating and a list of customer reviews, both positive experiences and complaints. Complaints don't mean a contractor is unreliable. BBB reviews show how the company dealt with complaints. It's a positive sign if the company has fixed issues favorably and proactively. You should steer clear of a company with numerous negative reviews, no certifications, and no communication regarding issues.

Foundation Repair Cost in Issaquah

The price of foundation repair can vary substantially depending on the extent of the issues and what's needed to resolve them. For minor foundation fracturing and settling issues, you may pay as little as $1,800. However, if there is significant deterioration, the normal cost lands at about $3,000. More involved projects involving excavating, helical piers, or major mudjacking could cost upwards of $6,900.

See below the average foundation repair costs for common issues.

Common Foundation Repair ServicesAverage Cost
Crack Repair$358
Leak Repair$2,890
Stabilization$5,015
Underpinning$1,372
Waterproofing$3,194

Frequently Asked Questions about Foundation Repair in Issaquah

More Foundation Resources

National Foundation Repair Ranking Methodology

Mold Remediation Cost Guide

Sources

U.S. Census Bureau (American Communities Survey)

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