Crawl Space Repair in Seattle, Washington
Reviewed by Michael Peterson· Licensed Home Inspector
15 crawl space companies serve Seattle, Washington, together holding 2,329 customer reviews. Northwest Crawl Space Services is the highest-rated at 5.0★ (444 reviews). Local crawl space repair typically runs $1,700–$6,550, and full encapsulation $3,350–$8,550. The most common services offered here are waterproofing, insulation, foundation repair.
Find trusted local contractors for crawl space encapsulation in Seattle, waterproofing in Seattle, mold removal in Seattle, and more in Seattle.
Local Price Estimates — Seattle
* Estimates based on local market rates. Get free quotes for exact pricing. See the full repair cost guide, encapsulation cost guide, or cost calculator.
Crawl Space Contractors in Seattle
221 1st Ave W #200, Seattle, WA 98119
40 reviews
221 1st Ave W, Seattle, WA 98119
63 reviews
800 S Weller St, Seattle, WA 98104
34 reviews
25422 74th Ave S, Kent, WA 98032
444 reviews
1420 E Pine St, Seattle, WA 98122
259 reviews
1700 7th Ave, Seattle, WA 98101
61 reviews
19705 69th Pl W, Lynnwood, WA 98036
16 reviews
11335 NE 122nd Way Suite 105, Kirkland, WA 98034
186 reviews
18915 16th Ave S, SeaTac, WA 98188
691 reviews
13760 Aurora Ave N, Seattle, WA 98133
28 reviews
12843 NE 14th Pl, Bellevue, WA 98005
34 reviews
3707 124th St NE bldg a-1, Marysville, WA 98271
130 reviews
608 SW 12th St, Renton, WA 98057
125 reviews
FAQs — Crawl Space Services in Seattle
How much does crawl space repair cost in Seattle?
Crawl space repair in Seattle, Washington typically costs between $1,700 and $6,550, depending on the extent of damage and services required. With 15 local companies to compare, getting 2–3 quotes usually saves 15–30%.
How much does crawl space encapsulation cost in Seattle?
Crawl space encapsulation in Seattle typically costs between $3,350 and $8,550. The price depends on the size of your crawl space and the materials used.
Who is the top-rated crawl space company in Seattle?
Northwest Crawl Space Services is the highest-rated crawl space contractor in Seattle with a 5.0★ rating from 444 reviews. Insulation Co (5.0★, 259 reviews) is also highly rated. Ratings shown are from public customer reviews.
How many crawl space contractors serve Seattle?
15 crawl space companies are listed for Seattle. The average local rating is 4.8★ across 2,329 reviews. Contractors in nearby Bremerton and Tacoma also serve the area.
What crawl space services are available in Seattle?
Seattle contractors most commonly offer waterproofing, insulation, foundation repair, alongside repair, insulation, cleaning, and inspection. Compare providers above to see who offers what.
What should Seattle homeowners know before hiring a crawl space contractor?
In the PNW, a drainage system should be considered mandatory, not optional. French drains or interior perimeter drains with a sump pump are the standard approach. Pair with encapsulation for complete moisture control. Always verify licensing and insurance, and get itemized quotes from at least two Seattle-area companies before signing.
Crawl Space Concerns in Washington
The Pacific Northwest receives more sustained rainfall than almost any other US region. Without active drainage, water continuously migrates into crawl spaces through soil pressure alone. Drainage systems are not optional here — they are essential infrastructure.
Local Tip — Washington
In the PNW, a drainage system should be considered mandatory, not optional. French drains or interior perimeter drains with a sump pump are the standard approach. Pair with encapsulation for complete moisture control.
Recommended services for Seattle:
Get Free Quotes in Seattle, Washington
Compare prices from local crawl space professionals. No obligation.
Helpful Guides
Pro Tip
Prices vary by location, crawl space size, and severity. Always get 2–3 quotes before hiring.