Serving Fremont, San Jose, San Francisco

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Reviews From Walnut Creek
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 Walnut Creek, CA
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Respected Crawl space Repair Contractors serving Walnut Creek, CA

Crawl Space Repair & Encapsulation in Walnut Creek, CA

Since 2003, Clean CrawlSpace Inc. has helped homeowners in Walnut Creek, CA protect their homes from crawl space moisture, mold, and damage. As a certified CleanSpace® dealer, we use trusted solutions like vapor barriers, sump pumps, dehumidifiers, and insulation that is designed to last and backed by real results. When it comes to crawl space repair, we're the team other pros rely on. Even HGTV turned to us on House Detective to fix real crawl space problems.

 

What’s happening beneath your home matters. Musty smells, warped floors, and damp air often start in the crawl space but they don’t stay there. Moisture can quietly damage your structure, ruin air quality, and chip away at your home’s value. At Clean CrawlSpace Inc., we’ve spent over 20 years helping Walnut Creek, CA homeowners stop crawl space problems before they spread. We install proven systems like vapor barriers, sump pumps, drainage, and dehumidifiers, everything needed to protect your home from the ground up.

Services We Offer in Walnut Creek

  • 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 Installation: Our powerful sump pumps come with airtight lids, built-in alarms, and optional battery backups, designed to handle water removal reliably, even during storms or outages.
  • Dehumidification: High-performance dehumidifiers like the SaniDry Sedona remove excess humidity, helping prevent mold growth and improving the air quality throughout your home.
  • Insulation for Crawl Spaces: We use water-resistant materials like SilverGlo® wall panels and TerraBlock™ floor insulation, built specifically to hold up in damp, low-clearance 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 Quality Solutions: Optional air purification systems help filter allergens, mold spores, and odors rising from your crawl space into your living space.

Worried about your crawl space? Get a free estimate.

If you're concerned about crawl space moisture, mold, or structural problems, you can count on Clean CrawlSpace Inc. for honest answers and proven solutions. We’ve earned the trust of homeowners in Walnut Creek, CA by delivering professional crawl space encapsulation, sump pump systems, drainage, dehumidifiers, and mold treatment that last. Schedule your free estimate today!

Job Stories From Walnut Creek, CA
Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA

The musty smell that had infiltrated every corner of Jeffrey's Discovery Bay home was more than just an annoyance; it was a persistent invader. Jeffrey took the plunge and had an environmental air test conducted. The results were sobering – rodent droppings and a worrying level of mold spores lurked in the very air he breathed. The culprit? His neglected crawlspace, a damp breeding ground for both microscopic and furry threats. Jeffrey contacted Clean Crawlspace. 

 

Clean Crawlspace cleaned the debris, purged the water, and rodent droppings and antibacterial. A robust vapor barrier was meticulously installed, sealing the crawlspace from the damp clutches of the earth. The transformation was immediate – the oppressive odor vanished, replaced by the crisp scent of clean air. Victory, it seemed, smelled like a fresh start. With the mold subdued and the rodents evicted, Jeffrey could finally breathe easy, his Discovery Bay, CA home, reclaimed from the clutches of the unseen. Jeffrey is a happy customer with a home, once tainted by illness, now filled with the promise of renewed health and well-being.

Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Photo 1Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Photo 2Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Photo 3Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Photo 4Crawlspace Cleanup: Breathing Easier in Discovery Bay, CA - Photo 5
Work Requests From Walnut Creek, CA
Project Location: Walnut Creek, CA
I have a flooded crawl space due to a sump pump issue, The house is in a flood zone and happens with heavy rains. I had a rooter company come out on Friday to correct another problem and noticed the problem and smell
Project Location: Walnut Creek, CA
Moisture in crawl space under master closet.
Project Location: Walnut Creek, CA
Underfloor insulation for 1964 sq ft home
Project Location: Walnut Creek, CA
There is a musky smell in the crawl space and we need to identify the source of it.
Project Location: Walnut Creek, CA
I am interested in installing a new vapor barrier under the house, general remediation as needed, and insullation.
Project Location: Walnut Creek, CA
1/ Clean crawl space, 2/ replace and install new vapor barrier, 3/ replace and install new sump pump, 4/ repair and install new french drain in the crawl space.
Project Location: Walnut Creek, CA
Looking for crawlspace encapsulation quote
Project Location: Walnut Creek, CA
We've had increased humidity and moisture in our crawlspace causing our piers and floor joists to shift. We've had extensive construction to fix the piers, but I was hoping to find a more long term solution to preventing this in the long term as well as drying out the current situation.
Project Location: Walnut Creek, CA
My family has been complaining about foul odor in one part of the house. I went into the crawl space and found it very moist with scattered puddles of standing water. Also, under this one area of the house there do not seem to be any foundation vents.
Project Location: Walnut Creek, CA
Water in crawl space during rainy season
Project Location: Walnut Creek, CA
We need an estimation for our crawl space. We need a new vapor barrier and maybe an insulation. Thank you
Project Location: Walnut Creek, CA
Hello, how much would it cost to do a crawl space cleaning? This is for a condo that is 890 sq ft and the crawl space has enough space to kneel. Thank you.
Project Location: Walnut Creek, CA
We have floor heating in the kitchen area and there's a crawl space under it. We feel the heat escapes and there's no insulation to keep floors warmer especially in winter.
Project Location: Walnut Creek, CA
We have what looks like mold on interior walls likely from a wet crawl space. We need someone to come look and offer solutions. Thanks.
Project Location: Walnut Creek, CA
Floor surface is cold and uncomfortable in the morning. Heating costs are way higher than anticipated. I would also like know if I need inmsulation in the exterior walls.
Project Location: Walnut Creek, CA
We have roughly 600 sq ft of crawlspace that floods when it rains. We are unsure where the water is coming in from. We'd like an estimate for encapsulation as well as insulation of the crawlspace.
Project Location: Walnut Creek, CA
We moved in to a new house and there was an existing sump pump so we know there were already issues but it seams to run ALL the time! (not continuously as the float valve is working, just on and off for weeks!) The ground under the house is very moist and there is some water you can see.
Project Location: Walnut Creek, CA
Crawl space clean out, vapor barrier installation, insulation installation, and rodent proofing for a 1200sq st home crawl space
Project Location: Walnut Creek, CA
Due to the recent storm we have water collected in our crawlspace that we want to drain out and also add drainage system to waterproof the crawlspace
Project Location: Walnut Creek, CA
Hi I have been having leaks/water under my house and need a dump pump placed under my property and a French drain. It's a 5000 square foot home please could I have a written estimate
Serving the following Walnut Creek, CA zip codes
94595, 94596, 94597, 94598
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