Basement mold in Edmonds is usually a water problem first: hillside runoff against below-grade walls, condensation on cold concrete, or a leak that soaked carpet and drywall. A remediation company removes what cannot be saved, cleans the rest and helps you keep the space dry. Call the number on this page to be connected with a local mold remediation company in Edmonds.
Local conditions in Edmonds
Edmonds sits on Puget Sound in southwest Snohomish County, about 14 miles north of Seattle, with downtown set in a valley locals call the bowl and neighborhoods climbing the slopes around it. On sloped lots, the uphill basement wall holds back wet soil for months at a time, and that is where seepage and staining tend to appear. The waterfront has its own exposure: during the December 27, 2022 king tide, waves crashed over the Edmonds seawall, about a foot and a half of water covered the marina area, and Dayton Street between SR 104 and Railroad Avenue closed with water 1 to 2 feet deep in spots. Snohomish County's Flood Information Center has a real-time flood map if you live near the water.
Clean it or remove it?
| Material | Usually cleaned | Usually removed |
|---|---|---|
| Poured concrete walls and floor | Yes, scrubbed and dried | Rarely |
| Wood studs and plates | If solid, cleaned and dried | If soft or rotted |
| Drywall | Light surface spotting that dried fast | Mold in the cavity or long-wet sections |
| Carpet and pad | Seldom | Once mold has grown in them |
| Fiberglass insulation | No | When wet or moldy |
EPA says porous materials may have to be thrown away once moldy, and that you should never paint or caulk over mold.
Signs to watch for
- A musty smell that is worse with the door closed or after a storm.
- Dark spotting low on drywall along the uphill wall.
- Peeling paint or a white mineral crust on concrete.
- Carpet that feels cool and damp even when nothing has spilled.
- Warped baseboards or trim near the floor.
Timing and seasons
Most Edmonds basements get wettest between October and April, when soil stays saturated and indoor air meets cold walls. Late summer is the easiest time to dry and rebuild, but do not wait if water is coming in now: EPA's window to dry wet materials is 24 to 48 hours. Rebuilding walls after removal goes through the City of Edmonds Building Division. The Snohomish County Health Department does not investigate mold in private homes or test it, and the city's Code Enforcement Division says it does not get involved in tenant-landlord disputes, so renters should put repair requests to the landlord in writing.
Basement Mold Removal questions in Edmonds
Is that white crust on my basement wall mold?
Water seeps through my foundation wall every winter. Is mold removal enough?
Who can I ask about health concerns from basement mold?
I rent a basement unit. What can I do about mold?
More mold services in Edmonds
Basement Mold Removal nearby
Sources
- Wikipedia: Edmonds, Washington
- KIRO 7: Cleanup after king tides flood Edmonds
- Snohomish County: Flood Information Center
- City of Edmonds: Building Division
- City of Edmonds: Code Enforcement
- Snohomish County Health Department: Mold and Air Quality
- EPA: Mold Cleanup in Your Home
- Washington State Department of Health: Mold
- RCW 59.18.060: Landlord duties
- RCW 59.18.070: Landlord failure to carry out duties
Last updated: