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Crawl Space Cleaning · Seattle Metro

Crawl space cleaning and sanitation

The crawl space is the most neglected part of most homes, yet it has a big effect on the air you breathe upstairs. We turn musty, contaminated crawl spaces into clean, dry, healthy ones.

  • Debris, rodent waste and dead animal removal
  • Vapor barriers and moisture control
  • New under-floor insulation where needed
Free inspection · firm quote

Get your free crawl space inspection

Tell us about moisture, debris, damaged insulation or pests below your home.

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Preview copy: on atticrewwa.com this card runs Attic Crew's live lead form.

No obligationFirm, written quoteLicensed & insured
Since 2014Family owned Screened & ApprovedHomeAdvisor Licensed & InsuredWA Lic. #ATTICCI808NU Lifetime Guarantee*On many services
Under your floor

Your crawl space affects the air you breathe

Months of Pacific Northwest rain keep the soil under many homes damp from fall through spring. High humidity and musty odors in the crawl space find their way into your living space, and some contractors estimate that up to 40% of the air on the first floor comes up from below.

Attic Crew is ready to turn your old, musty crawl space into a clean and healthy one, so your house can be clean and green.

A dimly lit crawl space showing fallen insulation and torn black poly vapor barrier, highlighted by a flashlight beam.
40%of first-floor air can come from the crawl space.
A dimly lit crawl space showing fallen insulation and torn black poly vapor barrier, highlighted by a flashlight beam.
Our solutions

Crawl space problems we solve

Moisture damage

Damp soil, condensation and standing water that feed mold and rot.

Dead animal removal

Removal, sanitizing and sealing the way they got in.

Rodent infestation

Nests, droppings and the entry points rodents use.

Old, musty smells

Odors that drift up into your living space.

Old or damaged insulation

Sagging, fallen or contaminated under-floor insulation.

Torn vapor barriers

Missing or damaged barriers that let ground moisture in.

Book a Free Inspection

Our process

How we clean and protect your crawl space

We thoroughly inspect, scrub and seal your crawl space, then show you the results in photos.

  • Inspect for moisture, pests, damaged insulation and entry points
  • Remove debris, droppings, dead animals and contaminated insulation
  • Sanitize and deodorize
  • Add drainage and a sump pump where standing water is a problem
  • Install or replace the vapor barrier
  • Screen vents and seal openings against rodents
Book a Free Inspection
A technician wraps a pier while laying a new white vapor barrier.
A technician wraps a pier while laying a new white vapor barrier.
Visual guide

How crawl space air reaches your living space

How crawl space air reaches your living spaceTap to enlarge
Read this guide as text
  1. Outdoor air entersAir comes into the crawl space through the vents.
  2. It picks things upCrawl space air can carry dust, moisture, mold and pests.
  3. It's pulled insideAir moves up into the house through gaps in the floor.
  4. Warm air rises and leaks outThe stack effect keeps pulling crawl space air upstairs.
Project walkthrough

Crawl space cleaning with worn vapor barrier in Tacoma ranch

Tacoma · from first look to finished job

After: The crawl space floor is fully covered with a new, intact vapor barrier, leaving the area clean, dry, and well protected.
Before: Before cleaning, the crawl space floor’s vapor barrier is heavily worn, torn, and dirty, with debris and exposed damp soil clearly visible.
BeforeAfter
  1. Before

    Before cleaning, the crawl space floor’s vapor barrier is heavily worn, torn, and dirty, with debris and exposed damp soil clearly visible.

  2. In progress

    A technician carefully removes the damaged vapor barrier and clears insulation debris from the crawl space floor.

  3. In progress

    A technician installs and secures a new moisture barrier, taping seams and fastening edges to the foundation walls.

  4. After

    The crawl space floor is fully covered with a new, intact vapor barrier, leaving the area clean, dry, and well protected.

Some images show actual Attic Crew jobs; others are representative, with details changed for customer privacy.

Our work

Crawl space cleaning projects

Tap any photo or project to see it full size and step through it.

Before & after from past jobs

Crawl space cleaning: before and after photos from an Attic Crew job
Crawl space cleaning
Crawl space cleaning: before and after photos from an Attic Crew job
Crawl space cleaning
Crawl space cleaning: before and after photos from an Attic Crew job
Crawl space cleaning

More crawl space cleaning projects

Crawl space cleaning with debris-strewn dirt floor: before and after4 photos
Crawl space cleaning with debris-strewn dirt floorFederal Way
Crawl space cleaning with torn black poly removal and replacement: before and after4 photos
Crawl space cleaning with torn black poly removal and replacementMarysville
Crawl space cleaning with rodent droppings removal and barrier resealing: before and after4 photos
Crawl space cleaning with rodent droppings removal and barrier resealingKirkland
Crawl space cleaning with standing water drain and seal: before and after4 photos
Crawl space cleaning with standing water drain and sealSammamish
Crawl space cleaning with heavy debris in Bellevue Craftsman: before and after5 photos
Crawl space cleaning with heavy debris in Bellevue CraftsmanBellevue
Crawl space cleaning with insulation removal in Renton split-level: before and after5 photos
Crawl space cleaning with insulation removal in Renton split-levelRenton
Crawl space cleaning with debris and vapor barrier removal in Bellevue: before and after4 photos
Crawl space cleaning with debris and vapor barrier removal in BellevueBellevue
Crawl space cleaning with old insulation and debris removal in Kent: before and after4 photos
Crawl space cleaning with old insulation and debris removal in KentKent
Crawl space cleaning with debris and vapor barrier removal in Tacoma: before and after4 photos
Crawl space cleaning with debris and vapor barrier removal in TacomaSouth Tacoma
A technician removes fallen insulation from a crawl space.
A technician removes fallen insulation from a crawl space.Ballard, Seattle
A technician removes a dead animal from a crawl space.
A technician removes a dead animal from a crawl space.Ballard, Seattle
A technician sanitizes crawl space joists with a sprayer.
A technician sanitizes crawl space joists with a sprayer.Issaquah
A technician installs new under-floor insulation in a crawl space.
A technician installs new under-floor insulation in a crawl space.Federal Way
A brightly lit, freshly cleaned crawl space.
A brightly lit, freshly cleaned crawl space.Marysville

Some images show actual Attic Crew jobs; others are representative, with details changed for customer privacy.

See the full gallery

Customer reviews

What our customers say

Rated 4.9 on Google, with 5-star reviews on Yelp, so you can breathe easy knowing you're in good hands.

★★★★★
“We needed some rodent proofing and all of the insulation in our raised house replaced. I was able to get them out for an estimate within days and schedule the work within a couple of weeks. The work was done in about 7 hours and looks fantastic. Everybody was very friendly and professional.”
Steve M.Google review
★★★★★
“Joey and his crew arrived on time. They were very professional and considerate to our needs. We needed our old insulation swapped out and have our attic and crawl space rodent proofed. They did an amazing job at doing so. He was considerate enough to take pictures of all work completed and presented me everything.”
Marcie D.Google review
★★★★★
“After 19 years, my crawl space was a disgusting mess due to being inhabited by rodents. Jay came to my home to make an inspection and recommendations. He showed me photos of the problem and explained exactly what was needed to be done. Two weeks later as planned, Wais came out with the crew right on time. When the job was completed, I was again shown with photos exactly what was done and was beyond satisfied with…”
Nathanial H.Google review
Common questions

Crawl Space Cleaning FAQ

What is a crawl space vapor barrier?

A heavy plastic sheet laid over the soil, and often up the walls and around piers, that keeps ground moisture out of the crawl space. In our wet climate it's one of the most effective ways to reduce humidity and musty odors.

Can you remove a dead animal from my crawl space?

Yes. We remove the animal and any contaminated material, sanitize the area and seal the entry point so it doesn't happen again.

Do you install sump pumps?

Yes. Where standing water is a problem we can add drainage and a sump pump before sealing the crawl space.

How do I know if my crawl space needs cleaning?

Musty smells in the house, signs of rodents, sagging or fallen insulation, standing water or a torn vapor barrier are all good reasons to have it inspected. The inspection is free.

Areas we serve

Crawl Space Cleaning near you

Local pages for the cities we serve most. We also work throughout Seattle, the Eastside, Tacoma, Everett, Olympia and the Puget Sound region.

Free inspection

Let's get you an estimate

We quote firm prices so there are no surprises. Book your free crawl space cleaning inspection today.

or call 425-675-1721
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