Foundation Repair Cost in Washington 2026 Pricing Guide
The average foundation repair project in Washington costs $7,000 in 2026. Prices typically range from $3,010 to $34,300 depending on the type of damage, repair method, and foundation type.
Washington Foundation Repair Quick Facts
Average Cost
$7,000
Cost per Linear Ft
$3.50 – $15.00
Labor Rate
$62 – $90/hr
Soil Type
Volcanic Clay / Glacial Till / Silt
What Affects Foundation Repair Costs in Washington?
Washington State's wet marine climate on the western side of the Cascades creates persistent soil saturation that generates constant hydrostatic pressure against foundations, while the region's glacial till and volcanic clay soils are prone to sliding on the many hillside building sites in Seattle and Tacoma. Labor costs in the Seattle-Bellevue-Tacoma metro area are among the highest in the nation, pushing foundation repair costs well above the national average. Seismic risk from the Cascadia Subduction Zone has made earthquake retrofitting a major concern, with older homes requiring foundation bolting and cripple wall bracing that adds thousands to repair costs. Eastern Washington around Spokane is significantly drier and more affordable, with fewer moisture-related foundation issues. Most western Washington homes are built on poured concrete perimeter foundations with crawl spaces, and post-and-pier settling, wall cracking, and moisture-related concrete deterioration are the most common repair needs.
Soil & Climate
- Climate Zone
- Marine / Cold
- Soil Type
- Volcanic Clay / Glacial Till / Silt
- Material Costs
- $500 – $11,000
Permits & Labor
- Permit Required
- Yes
- Avg. Permit Cost
- $300
- Labor Rate
- $62 – $90/hr
| Service | Low | High | Average |
|---|---|---|---|
| Crack Repair | $350 | $3,500 | $1,120 |
| Piering / Underpinning | $7,000 | $34,300 | $16,450 |
| Mudjacking / Slabjacking | $700 | $4,200 | $1,750 |
| Wall Anchors / Stabilization | $5,460 | $16,450 | $9,590 |
| Basement Waterproofing | $2,730 | $13,720 | $6,860 |
| House Leveling | $7,000 | $27,300 | $13,720 |
| Foundation Inspection | $420 | $1,400 | $840 |
*Costs are estimates based on Washington market data for 2026. Actual prices vary by damage severity, repair method, and location within the state.
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Washington Contractor Licensing & Regulations
Washington requires all contractors to be registered with the Department of Labor & Industries, carry a surety bond, and maintain liability insurance. Building permits are required in all jurisdictions for structural foundation repairs, and work must comply with the Washington State Energy Code and Residential Code. Seismic retrofit projects typically require engineered plans approved by a licensed structural engineer.
Licensing Board
Verify your contractor's license through the Washington State Department of Labor & Industries .
Always verify that your contractor holds a valid, active license and adequate insurance before signing any contract. Foundation repair is structural work — ask for proof of workers' compensation coverage, general liability insurance, and relevant structural engineering credentials.
Top Cities for Foundation Repair in Washington
These are the most popular areas for foundation repair services in Washington.
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