Kenmore mildew mostly comes from indoor moisture through the wet months: steamy bathrooms, cold window glass and closets on outside walls that never fully dry. Small areas on hard surfaces can be cleaned at home, but larger patches, stained drywall or growth that keeps returning call for a professional who can track down the source. Call the number on this page to be connected with a local mold remediation company in Kenmore.

What the call involves
This page connects you with an independent mold remediation company that covers Kenmore and the Northshore; the site itself doesn't clean or inspect. When you call, mention the rooms with mildew, how far it has spread and anything you have already tried. If it keeps returning after cleaning, say so, because that usually points to a ventilation gap or a hidden leak. The company should come out, look past the surface stain with a moisture meter, and leave you a written plan that lists what will be cleaned, what will be removed and what repairs you'll handle afterward.
Price drivers
Angi's Seattle cost guide puts bathroom mold remediation at $425 to $825, and HomeGuide's 2026 national bathroom range is $500 to $2,000. For a Kenmore home, the final number depends on:
- how much wall, ceiling or window area is affected
- whether paint and drywall clean up or have to be replaced
- work inside closets, cabinets or other tight spaces
- whether a better exhaust fan or duct is part of the fix
- patching and painting afterward

Kenmore conditions
Kenmore is a Northshore suburb about 10 miles northeast of Seattle at the top of Lake Washington, where the Sammamish River empties into the lake and Kenmore Air runs its seaplane service. King County says the Sammamish River from Woodinville downstream to the lake generally stays within its banks, so river flooding isn't the usual source here. Instead, homes in Arrowhead, Inglewood, Linwood Heights and Kenlake Vista deal with the region's long, gray wet season, wooded lots near Saint Edward State Park that stay shaded, and lake air that keeps humidity up. Windows stay cold for months and showers, cooking and laundry add moisture that settles on them. Ask Kenmore Development Services, which has permit coordinators and building inspectors on staff, whether drywall or fan work needs a permit.
Before anyone shows up
- Photograph the mildew in good light.
- Note whether it appears after showers, cold nights or rain.
- Empty the affected closet or cabinet.
- Check whether the bath fan vents outside or just into the attic.
- Write down any past roof, window or plumbing leaks.
Mold & Mildew Cleanup questions in Kenmore
How do I keep mildew out of the bathroom?
Is mildew the same thing as mold?
Does mildew on a closet or bedroom wall mean there's a hidden leak?
How do I check a mold and mildew cleanup company in Washington?
More mold services in Kenmore
Mold & Mildew Cleanup nearby
Helpful guides
Sources
- Wikipedia: Kenmore, Washington
- Wikipedia: Eastside (King County, Washington)
- King County: Flooding in the Sammamish watershed
- City of Kenmore: Development Services Team
- Angi: How Much Does Mold Remediation Cost in Seattle, WA?
- HomeGuide: How Much Does Mold Removal and Remediation Cost? (2026)
- EPA: Mold Cleanup in Your Home
- L&I: Verify a Contractor, Tradesperson or Business
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