Medina is almost entirely residential, so commercial-scale mold work there usually means large homes run by property managers, rental estates with tenants, or the handful of non-residential buildings in town. These jobs call for the same written scope, containment and clearance as an office building. Call the number on this page to be connected with a local mold remediation company in Medina.
About Medina
Medina is a small, wealthy city of about 2,900 people on a Lake Washington peninsula roughly 4 miles from Seattle, bordered by Clyde Hill and Hunts Point and tied to Seattle by the SR 520 Evergreen Point Floating Bridge. Lake Washington surrounds it on every side except the east, and the city's Shoreline Master Program also covers creeks, streams and wetlands inside city limits. Big houses with finished lower levels, pool rooms, guest suites and boathouse-adjacent spaces offer a lot of places for slow leaks to hide.
What to do now
- Tell the owner or board in writing what was found, where, and when.
- Stop or isolate the water source, whether a supply line, a roof valley, an irrigation leak or lake-side seepage.
- Close the affected rooms and keep household staff, tenants and guests out.
- Leave mechanical systems serving the area off until they are checked.
- Take dated photos and moisture readings if you have a meter.
- Collect any warranty, plumbing or roofing records for the area.
- Ask the owner's insurance agent whether the carrier wants to see the damage before anything is removed.
What you see and what usually causes it
| What you see | Likely cause |
|---|---|
| Spotting on a lower-level wall facing the lake | Groundwater or poor drainage against the foundation |
| Musty pool or spa room | High humidity and limited exhaust |
| Stained ceiling below a bathroom suite | Shower pan, drain or supply leak |
| Mildew on closet walls in a guest wing | Rooms left closed and unheated through winter |
| Growth on wood near a skylight | Flashing leak or condensation on cold glass |
Cost factors
High-end homes and estate buildings are bid as custom projects. As a residential reference, Angi's Seattle cost guide lists whole-house jobs at $8,275 to $24,800. Price rises with the number of rooms, protection of specialty finishes, millwork and stone during removal, HVAC evaluation, and matching finishes during rebuild. Repairs that need permits go through the Medina Development Services Department, whose director serves as the city's building official. Public Health - Seattle & King County does not do mold assessments, and Washington has no mold license, so check every bidder's L&I construction contractor registration.
Commercial Mold Remediation questions in Medina
Can Public Health - Seattle & King County help with mold in our building?
Should the remediation company also do the clearance check?
Can the work be done after hours or in phases?
What indoor humidity should a commercial building aim for?
More mold services in Medina
Commercial Mold Remediation nearby
Helpful guides
Sources
- Wikipedia: Medina, Washington
- City of Medina: Shoreline Master Program
- City of Medina: Development Services Department
- City of Medina: Code Compliance
- Public Health - Seattle & King County: Mold (tenants and landlords)
- Angi: How Much Does Mold Remediation Cost in Seattle, WA?
- EPA: Mold Remediation in Schools and Commercial Buildings (pdf)
- Angi: How to Hire a Mold Remediation Company (separate testing and remediation)
- L&I: Verify a Contractor, Tradesperson or Business
Last updated: