Foundation Repair Cost in Seattle, WA
Based on 1,115 foundation repair building permits filed in Seattle between 2015 and 2026, the typical declared project value is $25,000, with most landing between $14,500 and $40,000. These are real records from Seattle's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Foundation Repair values over time in Seattle
Median declared value moved from $22,500 in 2021 to $27,033 in 2026, up 20% over that span. Each year below is computed from the filings that actually cleared in Seattle.
Recent foundation repair permits in Seattle
Actual filings from Seattle's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-06-15 | $26,000 | Construct foundation repairs to include push piers for one-family dwelling per plan. |
| 2026-06-15 | $40,500 | Repairs to foundation of existing one-family dwelling per plan. |
| 2026-06-15 | $50,000 | Construct alterations to repair foundation for existing one family dwelling per plan. |
| 2026-06-08 | $5,000 | Construct alterations to existing one family dwelling at foundation for helical piles per |
| 2026-06-08 | $12,100 | Construct foundation repairs to one-family dwelling per plan |
| 2026-06-02 | $21,500 | Construct foundation repair to existing one family dwelling per plan. |
| 2026-05-29 | $32,630 | Construct alterations for underpinning of existing foundation and installation of floor su |
| 2026-05-29 | $120,000 | Construct addition at basement and alterations to existing one family dwelling per plan. |
| 2026-05-26 | $117,101 | Underpin foundation at western portion of existing one-family dwelling per plan. |
| 2026-05-20 | $5,000 | Construct alterations to existing one family dwelling at foundation for helical piles per |
| 2026-05-18 | $37,450 | Construct foundation repair with helical-piles of existing one-family dwelling per plan. |
| 2026-05-13 | $25,000 | Install underpinning at foundation of existing one-family dwelling per plan. |
| 2026-05-07 | $4,500 | Construct foundation repair with helical piers to existing one family dwelling per plan. |
| 2026-04-30 | $64,500 | Construct foundation repair with helical piles to existing one family dwelling per plan. |
| 2026-04-17 | $41,394 | Construct new garage with roof deck on existing foundations and stem walls per plan |
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Add your price →How to read these numbers
A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What foundation repair actually costs in Seattle comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Seattle's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Seattle homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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