Serving Fremont, San Jose, San Francisco

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Reviews From Mill Valley
Products & Services

Products:

  • CleanSpace® 20-Mil Vapor Barrier
  • SmartSump™ Crawl Space Sump Pump System
  • UltraSump® Battery Backup System
  • SaniDry Sedona Dehumidifier
  • SmartJack® Crawl Space Support System
  • SilverGlo™ Wall Insulation Panels
  • TerraBlock™ Crawl Space Floor Insulation
  • Mold-X2 Treatment System
  • Interior Drainage Systems / Trench Drains
  • Optional Air Purifiers
Happy Customers Surrounding Mill Valley, CA
Reviews
Work Requests

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The Leading Crawl Space Repair Contractors serving Mill Valley, CA

Crawl Space Repair & Encapsulation in Mill Valley, CA

Clean CrawlSpace Inc. has been protecting homes in Mill Valley, CA from crawl space moisture, mold, and structural issues since 2003. As a certified CleanSpace® dealer, we install proven solutions like vapor barriers, sump pumps, dehumidifiers, and insulation that are designed for long-term performance. We’re not just experts in crawl space repair, we’re the experts that other experts trust. That’s why HGTV featured our team on House Detective, turning to us to solve real crawl space problems on national television.

 

Musty smells, damp air, and sagging floors are more than annoying, they're warnings. Left untreated, they can lead to mold growth, wood rot, rising humidity, and foundation damage. For over 20 years, Clean CrawlSpace Inc. has helped homeowners in Mill Valley, CA fix their crawl spaces with lasting, warrantied solutions. From full encapsulation to drainage, sump pumps, humidity control, and air purification, we’ll help you create a dry, healthy space beneath your home.

Our Services in Mill Valley

  • Crawl Space Encapsulation: CleanSpace® 20-mil vapor barrier sealed along floors and walls to block moisture, odors, and outdoor air. Includes a 25-year transferable warranty.
  • Sump Pump Systems: Sump pump installations with airtight lids, alarms, and optional battery backups to remove standing water and prevent flooding.
  • Dehumidifiers & Humidity Control: Crawl space dehumidifiers like the SaniDry Sedona control moisture and improve indoor air quality.
  • Crawl Space Insulation: Moisture-resistant insulation including SilverGlo® wall panels and TerraBlock™ floor insulation, built to last in tough crawl space environments.
  • Mold Treatment & Cleaning: Mold-X2 products safely remove surface mold as part of a complete moisture management system.
  • Drainage Systems: Interior crawl space drains direct groundwater toward the sump pump, preventing water buildup and protecting your foundation.
  • Air Purification: Optional air cleaners reduce allergens, mold spores, and musty odors from air circulating up from your crawl space.

Crawl Space Problems? Get a Free Estimate!

If you’re dealing with crawl space moisture, mold, or structural issues, contactClean CrawlSpace Inc. for a free crawl space encapsulation and repair estimate in Mill Valley, CA and nearby. We offer professional sump pump installation, drainage systems, vapor barriers, dehumidifiers, and mold treatment to keep your crawl space dry, clean, and protected.

Work Requests From Mill Valley, CA
Project Location: Mill Valley, CA
Just trying to install moisture barrier for at crawl space.
Project Location: Mill Valley, CA
Two houses to look at. The address given has had more moisture this year and want to make sure things are structurally sound. The second house needs the crawl space cleaned out and the sump pump looked at for possible repair. Thanks!
Project Location: Mill Valley, CA
We recently purchased a home and are seeing some light water pooling and moisture underneath our house. We would like to a get a quote to add a sub pump, replace a wood retaining wall, and encapsulate our sub area. This is not an emergency job, so, quoting with you and a few other providers to make a pick for work later this year.
Project Location: Mill Valley, CA
String musty odor from crawl space under the house permeates to living space above.
Project Location: Mill Valley, CA
Have two enclosed crawl spaces under home. Would like estimate to cover dirt to reduce dust and enhance appearance.
Project Location: Mill Valley, CA
We have a crawl space that needs attention and has some water flow due to being at bottom of a hill
Project Location: Mill Valley, CA
I would like to secure a crawlspace in my home
Project Location: Mill Valley, CA
I would like an estimate for our crawlspace to be encapsulated. I would like to speak with somebody about my project requirements. I have inspection notes and an estimate from another company that I can share to help pull together the estimate. Feel free to give me a call. Thanks, Matt
Project Location: Mill Valley, CA
I would like to have you come check the humidity in my basement, which is next to a crawl space, and hear your recommendations.
Project Location: Mill Valley, CA
Would like to know what it would cost to renovate our crawlspaces
Project Location: Mill Valley, CA
We had ground water surface during the rains last year. Our crawl space is dirt. Part of the crawl space began to get muddy. No major pooling but we had water.
Project Location: Mill Valley, CA
We have a crawlspace construction home and our mold inspector recommended an encapsulation system & additional ventilation to address mold issues. Would like to schedule a time for someone to look & provide an estimate.
Project Location: Mill Valley, CA
We need a moisture barrier installed in the crawlspace underneath the ground floor with hardware floors. The hardwood was installed about 15 years ago with out a moisture barrier
Project Location: Mill Valley, CA
I am looking for an estimate to encapsulate my crawl space
Project Location: Mill Valley, CA
My wife and I purchased this home in May of this year, and on the inspection report they called out "soil damp - and water has accumulated at foundation" as something to repair. This is something that we have been meaning to get looked at, and with the recent rain we have noticed a few places of water build up near our water heater and furnace which is also under the house in a very large crawlspace.
Project Location: Mill Valley, CA
We need to have our crawl space cleaned. We can get certain smells at times that seem like animals have gotten in. But exterminators say they aren't there. We want the space cleaned out. Richard is our contractor and gave me your name. Thank you!
Project Location: Mill Valley, CA
Dampness and smell coming from crawl space.
Project Location: Mill Valley, CA
Bottom floor of hillside house sits above unsealed / un-insulated crawlspace. Floor itself is also un-insulated. Floor is cold, and there is dampness in wintertime. We would like an inspection to determine sealing / encapsulation / insulation options.
Project Location: Mill Valley, CA
We'd like to get a rough estimate for our crawlspace which is damp and has a very dank/earthy smell. We're interested in some sort of vapor barrier/coverage of the exposed dirt. Also, our downstairs floors are cold and we'd like to add insulation under the floors. The rough sq footage of the crawlspace is ~700sq ft. and the depth of the crawlspace is ~3-4ft
Project Location: Mill Valley, CA
We are purchasing (should close March 28th). The home is a 1300 sq foot 1950 ranch with a crawl space. We are considering a modest remodel and want to consider our options for encapsulation or other moisture control measures. Thanks.
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