Mold Remediation

Mold Remediation in Seattle, WA

Mold remediation in Seattle, WA. Nine months of rain creates chronic moisture in homes. Expert testing, removal & prevention for King County. Free inspections.

17 providersSeattle, WA

Local Risk Factors in Seattle

Crawl spaces beneath pier-and-beam craftsman homes throughout Seattle lack vapor barriers, creating perpetually damp soil-contact environments ideal for mold
Average relative humidity exceeds 75% from October through April — Seattle's climate sustains mold growth nearly year-round without any water damage event
Dense tree canopy in Phinney Ridge, Ravenna, and Laurelhurst neighborhoods keeps building envelopes shaded and wet, accelerating exterior and interior mold colonization
Seattle's mild temperatures mean mold never experiences a winter kill cycle — colonies established in fall persist and expand through the wet season

Seattle has the most favorable climate for mold growth of any major U.S. city. Nine months of near-continuous cloud cover and rainfall, combined with average relative humidity exceeding 75% from October through April, means that mold spores — always present in the Pacific Northwest's rich biological environment — rarely lack the moisture conditions needed to colonize. Seattle's housing stock compounds the problem: tens of thousands of craftsman bungalows built before 1940 lack modern vapor barriers, and their crawl spaces beneath pier-and-beam foundations sit directly over soil that remains perpetually damp. Stachybotrys (black mold), Cladosporium, and Chaetomium species are all documented in Seattle building inspections at rates well above national averages. Neighborhoods with dense tree canopy — Phinney Ridge, Ravenna, and Laurelhurst — have particularly elevated mold prevalence because overhanging vegetation keeps building envelopes shaded and damp year-round. The region's seismic caulking repairs after minor Cascadia zone tremors also create new moisture entry pathways that accelerate mold establishment.

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Mold Remediation Professionals in Seattle

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Zyra Water Damage

5(31)
·
0 yrs
1100 Northeast 45th Street, Seattle, WA 98105

Rated 5/5 with 31 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Seattle Mold And Restoration Service

5(35)
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0 yrs
5001 Rainier Avenue South, Seattle, WA 98118

Rated 5/5 with 35 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Seattle Mold Experts

5(23)
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0 yrs
300 Lenora Street, Seattle, WA 98121

Rated 5/5 with 23 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Lunexa Restoration

5(29)
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0 yrs
1200 6th Avenue, Seattle, WA 98101

Rated 5/5 with 29 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Seattle Water Damage Restoration

5(52)
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0 yrs
1419 Elliott Avenue West, Seattle, WA 98119

Rated 5/5 with 52 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Royal Water Damage Repair Seattle

5(8)
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0 yrs
1719 Northwest Market Street, Seattle, WA 98107

Rated 5/5 with 8 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Quick Restoration

5(58)
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0 yrs
1601 5th Avenue, Seattle, WA 98101

Rated 5/5 with 58 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Water Damage Restoration Seattle

5(39)
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0 yrs
4706 California Avenue Southwest, Seattle, WA 98116

Rated 5/5 with 39 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Max Pro Water Damage & Restoration Services

5(13)
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0 yrs
1526 15th Avenue, Seattle, WA 98122

Rated 5/5 with 13 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Modern Restoration

5(12)
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0 yrs
1900 West Nickerson Street, Seattle, WA 98119

Rated 5/5 with 12 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
H

Hydro Shield Restoration

5(160)
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0 yrs
14016 Lenora Place North, Seattle, WA 98133

Rated 5/5 with 160 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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Seattle Mold Solutions

4.9(30)
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0 yrs
4616 25th Avenue Northeast, Seattle, WA 98105

Rated 4.9/5 with 30 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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RW Restoration

4.9(54)
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0 yrs
612 South Lucile Street, Seattle, WA 98108

Rated 4.9/5 with 54 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
F

First Response Water Damage Repair

4.8(44)
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0 yrs
1432 Lakeside Avenue South, Seattle, WA 98144

Rated 4.8/5 with 44 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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SERVPRO of Seattle NE

4.7(27)
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0 yrs
12570 33rd Avenue Northeast, Seattle, WA 98125

Rated 4.7/5 with 27 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
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SERVPRO of Downtown Seattle

4.6(36)
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0 yrs
900 Lenora Street, Seattle, WA 98121

Rated 4.6/5 with 36 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more
B

BELFOR Property Restoration (Seattle)

4(40)
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0 yrs
4320 South 131st Place, Seattle, WA 98168

Rated 4/5 with 40 reviews. Restoration company serving Seattle, WA.

Insurance Claims AssistanceMold RemediationStructural Drying+1 more

Frequently Asked Questions

Typical costs for mold remediation in Seattle, WA range from $3,500 - $12,000. Actual costs depend on the extent of damage, affected area, and materials involved. Use our free Cost Estimator tool for a personalized estimate.