Mold Removal Contractors in Spokane, WA

18 listed 61% humidity 18" annual rain typical job $1.6k–$4.8k

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Mold in Spokane, WA

Spokane's older housing stock, with a median home built in 1962, combined with the region's 61% average humidity and 18 inches of annual rainfall, creates a particular vulnerability to mold in basements, crawlspaces, and around foundation areas. While Spokane isn't a high-humidity climate year-round, moisture problems tend to concentrate in these below-grade spaces where air circulation is poor and water intrusion from aging foundations becomes the real culprit. If your home was built before the 1980s, this is where mold remediation typically starts.

Most mold projects in Spokane run between $1,600 and $4,800, depending on how much affected material needs removal, whether the source (usually a leak or poor drainage) gets fixed, and how large the contaminated area is. A small bathroom mold spot costs far less than a full crawlspace remediation. Getting multiple quotes helps you understand what's driving the price difference in your specific situation.

Washington State requires mold remediation contractors to hold a contractor registration with the Department of Labor and Industries. Before hiring anyone from the 39 contractors listed here, verify their registration at lni.wa.gov. This isn't optional, and it's your most straightforward way to confirm they're legitimate.

One detail specific to Spokane: many older homes here have foundation cracks that look minor but funnel spring snowmelt directly into basements and crawlspaces. Ask any contractor you interview whether they'll assess your foundation's drainage and grading as part of their scope, not just the mold removal itself. Fixing the mold without addressing water entry means it'll likely return.

1717 W 6th Ave Suite 111, Spokane, WA 99204, USA

★ 5 · 12 reviews on Google

828 W Sprague Ave, Spokane, WA 99201, USA

★ 5 · 22 reviews on Google

1019 W 9th Ave, Spokane, WA 99204, USA

★ 5 · 23 reviews on Google

1410 E 10th Ave, Spokane, WA 99202, USA

★ 5 · 21 reviews on Google

5712 W Jamestown Ln, Spokane, WA 99208, USA

★ 5 · 38 reviews on Google

1114 N Fancher Rd Suite 101, Spokane, WA 99212, USA

★ 5 · 11 reviews on Google

8411 E Alki Ave, Spokane Valley, WA 99212, USA

★ 5 · 12 reviews on Google

9601 E Sprague Ave, Spokane Valley, WA 99206, USA

★ 5 · 85 reviews on Google

1118 W Railroad Alley, Spokane, WA 99201, USA

★ 5 · 8 reviews on Google

1909 N Huntington Ln, Spokane, WA 99224, USA

★ 5 · 1 reviews on Google

519 N Willow Rd, Spokane Valley, WA 99206, USA

★ 5 · 12 reviews on Google

Tapio Professional Center Green Flag, 104 S Freya St Building, Suite 110C, Spokane, WA 99202, USA

★ 4.9 · 415 reviews on Google

15215 E Marietta Ave A101, Spokane Valley, WA 99216, USA

★ 4.9 · 128 reviews on Google

9116 E Sprague Ave #546, Spokane, WA 99206, USA

9708 E Montgomery Ave STE D, Spokane Valley, WA 99206, USA

★ 4.8 · 574 reviews on Google

727 N Hogan St, Spokane, WA 99202, USA

★ 4.6 · 14 reviews on Google

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Business data sourced from public records · Last updated March 2026

MoldGuide is a lead referral service. We do not employ, endorse, or guarantee the work of any contractor listed. Verify licenses, insurance, and certifications independently before hiring.