On Fox Island, much of the housing is waterfront, and salt-damp air plus the long wet season keep crawl spaces humid enough for mold on joists and subfloor. Removal cleans the framing, pulls wet insulation, lays a new ground cover and fixes the moisture. Call the number on this page to be connected with a local mold remediation company in Fox Island.

What happens when you call
The call links you with an independent mold remediation company that covers Fox Island and the Gig Harbor peninsula. Let them know where the house sits relative to the water, whether the crawl space has ever taken on tide or storm water, and what you have noticed. If they take the job, they can arrange a visit to go through the full crawl space, test moisture in the framing, check vents and ground cover and trace any drainage or plumbing issues. Expect a written scope you can compare against another bid before you decide anything.
What moves the price
- Size and access. Angi's Seattle cost guide lists crawl spaces at $425 to $1,650; HomeGuide's 2026 national range is $1,500 to $4,000.
- Getting to the island. Crews cross the Fox Island Bridge from Artondale; ask whether travel is billed.
- Corrosion and wear. Salt air can rust fasteners, hangers and duct straps, which may add repair items.
- Insulation and ground cover. Full replacement costs more than spot repairs.
- Ducts. If heating ducts under the floor are moldy, EPA says not to run that system until it is dealt with.

Local conditions
Fox Island is an unincorporated residential island in south Puget Sound, about 29 miles from Seattle and roughly 5 miles from Gig Harbor, with Hale Passage to the north and Carr Inlet to the southwest. Much of the residential property is waterfront, so crawl spaces breathe humid shoreline air, wind-driven rain hits siding and vents, and low lots near the beach can see higher groundwater. Repairs in unincorporated Pierce County need permits from the Pierce County Planning & Public Works Development Center in Tacoma, including repairs after flood or storm damage. The county notes that flood repairs exceeding 50 percent of a structure's value over five years must bring the building up to current code. Pierce County Code Enforcement says it does not handle mold; those questions go to the Tacoma-Pierce County Health Department's Healthy Homes program.
Checklist before the visit
- Clear access to the crawl space hatch or door.
- Note any past high-tide or storm water under the house.
- Photograph growth, insulation and the ground cover.
- Check the company's registration on L&I's Verify a Contractor tool.
Crawl Space Mold Removal questions in Fox Island
Why do so many Puget Sound crawl spaces grow mold?
Is crawl space encapsulation the same thing as mold removal?
Should I deal with crawl space mold before I sell?
Does Washington license crawl space mold companies?
More mold services in Fox Island
Crawl Space Mold Removal nearby
Helpful guides
Sources
- Wikipedia: Fox Island, Washington
- Pierce County: Flood FAQs and resources
- Pierce County: Development Center
- Pierce County: Code Enforcement
- Tacoma-Pierce County Health Department: Mold
- Angi: Mold Remediation Cost in Seattle
- HomeGuide: Mold Removal Cost (2026)
- Washington L&I: Verify a Contractor
- EPA: Mold Cleanup in Your Home
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