Foundation Contractor Insurance

Every building stands on your work. That single fact defines foundation insurance: when your trade fails, the whole structure fails with it. Residential foundation repairs start around $50,000. Commercial failures reach millions. And the owner's lawyer addresses the letter to your liability carrier.

Washington's ground makes the job harder than most states'. Puget Sound sits on glacial till, marine clay, and organic soils that behave unpredictably under load. Expansive clays swell wet and shrink dry, cracking foundations and racking door frames. Seattle's hillsides add slope-stability risk — a bad drainage decision on a slope lot is a slow-motion landslide. And seismic code demands exact rebar placement and anchor patterns, because everything here is built for the earthquake question.

The claims arrive late. Settlement cracks at year two. A wet basement at year four. A flooded crawl space the first hard winter after closing. Washington's defect statute (RCW 64.50) runs six years, and foundation cases are among the most litigated defects in the state — expensive to defend even when you did everything right, because they always involve dueling engineers, soil tests, and forensic digs.

There's also a risk most foundation contractors don't realize they carry: judgment. Footing depth, rebar spacing, drainage design — those are engineering-flavored decisions, and they can generate errors-and-omissions claims that general liability doesn't cover. Many foundation contractors add professional liability for exactly that gap.

L&I registration and the $15,000 specialty bond are the entry ticket. Real protection is GL with serious completed operations, an umbrella for the catastrophic case, and E&O if your work involves design judgment. We place foundation contractors with carriers that write structural trades every day — and that price a clean claims history like it deserves.