Crawl Space Services

Eliminate dust and allergens with our professional crawl space cleaning. Enjoy a cleaner, healthier home. Call us for a free estimate!

Our Services

Crawl Space Cleaning

Thoroughly remove debris, dirt, and clutter from your crawl space to create a clean, safe, and accessible area.

Crawl Space Insulation

Improve energy efficiency and comfort with professional insulation installation for your crawl space.

Rodent Removal & Proofing

Eliminate unwanted pests and seal entry points to keep rodents out of your home for good.

Crawl Space Mold removal

Safely identify and remove mold, preventing health risks and protecting your home’s structure.

About Us

We are a local, trusted home performance company specializing in attic and crawl space solutions that improve comfort, air quality, and energy efficiency. From insulation and air sealing to mold remediation and rodent exclusion, our experienced team delivers high-quality workmanship and honest recommendations every step of the way. We take pride in helping homeowners protect their homes, lower energy costs, and create healthier living environments with reliable, long-lasting solutions.

Ways to Save on Insulation

Maintaining your crawl space is essential for a healthy home. Our expert team ensures your space is kept clean and dry, preventing mold and pests.

Seal Air Leaks First

Before adding insulation, seal gaps around windows, doors, and vents. This prevents wasted energy and ensures insulation works efficiently.

Use Rebates & Incentives

Check for local utility or government programs—many offer rebates for energy-efficient insulation upgrades.

Choose the Right Material

Select insulation suited for your space and climate. The right type lasts longer and provides better energy savings.

Insulate Strategically

Focus on areas that lose the most heat—attics, crawl spaces, and exterior walls—for maximum savings with minimal cost.

Why Choose Us

We help homeowners create healthier, more energy-efficient homes through expert insulation, crawl space, attic, and air-sealing solutions. Our team delivers honest recommendations, high-quality workmanship, and long-lasting results you can trust.

before and after crawl space insulation and ducts

Top Benefits of Our Crawl Space Services

Improved Air Quality

Regular maintenance reduces humidity and mold, enhancing indoor air.

Energy Efficiency

Sealing your crawl space can lower energy bills and increase comfort.

Structural Integrity

Repairs prevent water damage and foundation issues, protecting your home.

Pest Prevention

A well-maintained crawl space deters pests and keeps your home safe.

FEAUTRED PROJECTS

Our Photo Gallery

View our completed crawl space transformations—from contaminated cleanouts to fully sealed, insulated, and moisture-controlled spaces.

Customer Reviews

Our customers love working with us, just read what they have to say!

Rated 5 out of 5

"I was extremely satisfied with Insulation Co. from the first call back to work completion. They were on time, thorough and cleaned up after the job to the point of there was absolutely nothing for me to pick up after them. I would highly recommend. My crawl space is now completely clean and tight, better than originally done. I am a happy homeowner. Thank you Insulation Co."

Rated 5 out of 5

"Jo and his team at Insulation Co. were awesome. We had a major flood under our house around the holidays that impacted all our duct work and prevented us from using heat. He was able to get a crew together that came out and installed new insulation and ducting for us on Christmas Eve day so our family was warm on Christmas. Would highly recommend their services."

Rated 5 out of 5

"We hired Insulation Co to remove and replace our old insulation in our attic because we had a couple of leaks that we weren't sure where they were coming from. After the old insulation was removed, repairs were made and they returned to complete our job. Great work, fair price and very accommodating. We would hire again and will recommend to friends and family."

Rated 5 out of 5

"Very quick response & bid was accurate. The workers were prompt, actually arrived a little early and were able to complete the work in a very timely manner. I had my crawl space done wich included removal of all the old insulation and vapor barrier, sanitized, rodent prevention, and new insulation and vapor barrier installed. Highly recommend! Very nice job"

Or Get In Touch

call us

Snohomish, Eastside, Island: 425-903-6453
King, Pierce, Kitsap: 206-497-7358
Whatcom, Skagit, San Juan: 360-3559040

Email Us

sales@insulationco.com

Business Hours

Mon-Fri: 8:00AM - 6:00PM
Saturday: 8:00AM - 3:00PM

FREE SAME DAY QUOTE

Frequently Asked Questions About Crawl Space Services

A crawl space is the area beneath your home that houses plumbing, wiring, and sometimes HVAC components. Keeping it clean, dry, and insulated helps prevent moisture problems, mold growth, poor indoor air quality, high energy bills, and structural damage.

Common crawl space issues include:

  • Moisture and standing water

  • Mold and mildew

  • Rodent infestations

  • Damaged or missing insulation

  • Wood rot and structural concerns

  • Poor air quality entering the home

  • Sagging floors or cold rooms above

Signs your crawl space may need attention include:

  • Musty odors in the home

  • Cold or uneven floors

  • Higher energy bills

  • Visible mold or moisture

  • Pest activity

  • Allergies or respiratory issues

  • Soft or sagging floors

Crawl space services typically include:

  • Crawl space cleanouts

  • Vapor barrier installation

  • Crawl space encapsulation

  • Insulation removal and replacement

  • Mold remediation

  • Rodent exclusion and proofing

  • Drainage solutions (French drains, sump pumps)

  • Structural repairs and support

  • Air sealing and duct sealing

Yes. A clean, dry, sealed crawl space improves home efficiency, reduces risk, and is a strong selling point for buyers.

Yes. Excess moisture can lead to:

  • Mold and mildew

  • Wood rot

  • Structural damage

  • Pest infestations

  • Health concerns
    Moisture control is one of the most important crawl space upgrades.

Absolutely. Up to 50% of the air inside a home can originate from the crawl space. Mold, moisture, rodent waste, and dust can circulate into living areas if the crawl space is contaminated.

Yes. Proper crawl space insulation helps:

  • Keep floors warmer

  • Reduce energy loss

  • Prevent frozen pipes

  • Improve comfort year-round
    Insulation should be installed correctly and protected from moisture to remain effective.

Mold remediation typically includes:

  • Removing contaminated materials

  • Treating affected surfaces

  • Controlling moisture to prevent regrowth

  • Improving ventilation or encapsulating the space

Rodent exclusion may include:

  • Sealing entry points

  • Installing barriers or vent covers

  • Removing contaminated insulation

  • Sanitizing affected areas

  • Ongoing prevention recommendations

Yes. Air sealing, insulation, and encapsulation can significantly reduce energy loss, making your home more efficient and lowering heating and cooling costs.

Many companies offer free or low-cost inspections to evaluate moisture, insulation, air quality, and structural concerns.

QUICK LINKS
our service areas
  • Seattle
  • Bellevue
  • Kirkland
  • Renton
  • Everett
  • Federal Way
  • Auburn
  • Kent
  • Mercer Island
  • Bainbridge
  • Redmond
  • Bothell
  • Newcastle
  • Shoreline
  • Lake Forest Park
  • Tukwila
  • Des Moines
  • Issaquah
  • White Center
  • Kenmore
  • Edmonds
  • Mountlake Terrace
  • Lynnwood
  • Sammamish
  • Snoqualmie
  • North Bend
  • Lake Stevens
  • Woodinville
  • Mukilteo
  • Bellingham
  • Mount Vernon
  • Burlington
  • Lynden
  • Blaine
  • Birch Bay
  • Custer
  • Ferndale
  • Chuckanut
  • Lummi Island
  • Orcas Island
  • Oak Harbor
  • Everson
  • Alger
  • Nooksack
  • Marietta
  • Sedro Wolley
  • Anacortes
  • La Conner
  • Stanwood
  • Arlington

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Contact Us Today

Seattle, King, Pierce, Kitsap
Snohomish, Eastside, Island
Skagit, Whatcom, San Juan

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