Northwest Crawl Space Services Crawl Space Repair Google Rating and Reviews (5, 318)

Crawl Space Services

• Crawl space encapsulation & vapor barrier installation/repair
• Crawl space cleaning, mold remediation & structural restoration
• Insulation (attic & crawl space) and air duct sealing/replacement
• Crawl space drainage, sump pump installation & rodent proofing

Northwest Crawl Space Services Description

Northwest Crawl Space Services is a residential home services company in Washington State that specializes in comprehensive attic and crawl space cleaning, restoration, and long-term pest exclusion solutions.

Their core services include thorough crawl space and attic inspections, removal of debris and contaminated materials, professional cleaning and sanitization, insulation repair or replacement, and installation of drainage and moisture-control solutions to protect structural components and indoor air quality.

The company also offers rodent exclusion and removal services—sealing entry points, removing nesting materials, and implementing preventive measures to stop re-entry.

Northwest Crawl Space Services emphasizes sustainable, permanent solutions over temporary fixes.

They provide free inspections to assess crawl space conditions, create tailored remediation plans, and carry out repairs such as installing or replacing insulation, improving ventilation or encapsulation, and correcting grading or drainage problems that contribute to moisture and pest issues.

The team serves multiple locations across Washington, offering localized crawl space and attic services including attic cleaning, insulation services, and targeted restoration work after infestations or moisture damage.

By combining cleaning, structural and insulation repairs, moisture control, and rodent prevention, the company aims to improve home energy efficiency, reduce allergens and odor, and prevent recurring pest problems—helping homeowners protect property value and create healthier indoor environments.

For more information or to schedule a free crawl space inspection, see their website.

Crawl Space Repair Service Locations

• Kent WA
• Seattle WA
• Auburn WA
• Renton WA
• Federal Way WA
• Eatonville WA
• Brinnon WA
• Gold Bar WA
• Bremerton WA
• Index WA

Review 1
Overall a great experience. I appreciated the straightforward inspection. It didn’t feel very salesman like, just straight to the point.

Once the team started, the crew was very nice and respectful of my belongings.

They worked on a sump pump installation in my crawlspace along with a vapor barrier installation. They did a great job doing the work quickly and as clean as possible.

Quote cost was spot on. No surprises with me. They also provided a nice summary of the work that was done. Overall I would recommend working with them.

Total time for the sump pump installation, making a french drain and replacing the old vapor barrier with a 20mil sheet was about 1 day of work for them. So I am pleased it was done that fast.

Review 2
I wish I could rate NWCSS 10 stars. From start to finish, NWCSS was extremely professional and the work performed was exceptional. At my request, the project was completed in two phases and was glad NWCSS accommodated my request. The crew always arrived on time each day and worked tirelessly to completed the work. As an extra exceptional service, the owner Lior, took the initiative and volunteered to inspect the project shortly after its completion. Detailed photos of the project were furnished for our records. In conclusion, I highly recommend NWCSS as a great, professional contractor.

Typical Costs
Crawl Space Cleaning: $500 ~ $4,000
This is for basic services like removing debris, old insulation, or minor mold.

Foundation and Structural Repairs: $2,500 ~ $8,000
This includes fixing things like a damaged support beam or re-leveling the foundation.

Waterproofing and Moisture Control: $1,500 ~ $5,000
This might involve installing a drainage system or a sump pump.

Crawl Space Encapsulation: $5,000 ~ $15,000+
This is a comprehensive solution that includes a vapor barrier, insulation, and often a dehumidifier. The cost can be on the higher end due to the materials and labor involved.