Mold Inspection in Mukilteo, WA

Signs that call for an inspection

• A damp, earthy smell in a lower level or daylight basement after heavy rain.
• Staining or peeling paint on the uphill wall of a basement.
• Water trails on the foundation inside the crawl space.
• Mildew on window frames that face Possession Sound.
• Bathroom growth that returns no matter how often it's cleaned.

Local conditions in Mukilteo

Mukilteo sits on bluffs above Possession Sound and Port Gardner Bay, about 20 miles north of Seattle, and the land is cut by ravines and gulches along creeks such as Hulk Creek, with Japanese Gulch near Old Town. Erosion on these slopes has been severe enough to close Mukilteo Lane. For a house, slopes matter because rain soaks in uphill and moves toward the foundation, keeping basement walls and crawl spaces damp long after a storm passes. Homes in Old Town near the ferry terminal, along Mukilteo Boulevard and up in Harbour Pointe each have their own mix of slope, exposure and age, so a good inspector asks about gutters, downspouts and yard drainage as well as plumbing.

What affects the cost

Angi's 2026 national data puts mold inspections at $303 to $1,044, and HomeGuide's 2026 national range is $300 to $650. The price rises with square footage, multi-level homes built into a slope, tight crawl spaces and any lab samples; Angi lists a basic air test at $250 to $350 nationally. Get the price, and what the report covers, in writing before the visit.

What happens when you call

Your call connects you with an independent local company that performs mold inspections in Mukilteo. Describe what you're seeing and when it started. During the visit, expect moisture readings along walls and floors, a look through the attic and crawl space, and questions about ventilation and heating. The written report should list where moisture was found, the likely source and recommended next steps. Washington has no state certification for mold inspectors, so ask about training and experience, and if the company also does repair work, check its contractor registration on L&I's Verify a Contractor tool. If repairs need permits, the Mukilteo Permit Center takes building permit applications through the city's online portal.