Serving Fremont, San Jose, San Francisco

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Reviews From Vallejo
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 Vallejo, CA
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Work Requests

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Skilled Wet Crawl Space Repair and Encapsulation Contractors serving Vallejo, CA

Crawl Space Repair & Encapsulation in Vallejo, CA

Clean CrawlSpace Inc. has been protecting homes in Vallejo, 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 Vallejo, 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 Vallejo

  • 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 Vallejo, 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 Vallejo, CA
Project Location: Vallejo, CA
My wife and I would simply like a proper inspection of and quote for our home's crawl space for the purposes of installing a vapor barrier, as well as addressing likely issues with excess moisture or flooding over the winter months.
Project Location: Vallejo, CA
Evidence of standing water in sub-area.
Project Location: Vallejo, CA
My house is freezing. I believe having subfloor insulation or a moisture barrier installed will help with this. I have a 1930 square foot one story home with a low crawlspace under it.
Project Location: Vallejo, CA
I have a crawlspace that we want cleaned up and sealed.
Project Location: Vallejo, CA
I am experiencing a lot of mold growth inside of my home. And I believe it is due to water coming in underneath the crawlspace of the home.
Project Location: Vallejo, CA
When it rains heavily for a few days and the ground gets saturated water starts to ingress into the crawl space and collects at the low point. I believe a liner and sump pump needs to be installed at the point the water is coming in. could you please determine what needs to be done and give me an estimate for the job.
Project Location: Vallejo, CA
There is a strong urine smell that in my house, I have power washed the exterior of the building and I changed all the interior floors with wood. I freshly painted all rooms, and I can still smell the urine smell, I believe that the smell is coming from beneath the house. Please advise.
Project Location: Vallejo, CA
Currently looking for help to remove standing water in the crawl space in the area where bathroom plumbing is located. I am also interested in getting a quote for crawl space encapsulation services. Thank you.
Project Location: Vallejo, CA
Wet under crawl space need sump pump under home.
Project Location: Vallejo, CA
Crawl space damage causing drain Flies
Project Location: Vallejo, CA
Wet crawls space from rain want to prevent mold
Project Location: Vallejo, CA
We have water under our house
Project Location: Vallejo, CA
Mold and moisture in crawlspace
Project Location: Vallejo, CA
We are looking to get an estimate on how to insulate under our floors. The house was built in 1940 (ish) so its pretty much wood floor, sub floor, open crawl space. We recently had the walls insulated, but its not enough. We would like to see how much something like that would cost and the timeline on the work.
Project Location: Vallejo, CA
Our crawlspace is damp and we believe there is mold on the dirt. We have a lot of brick debris from a fireplace removal, along with other random stuff that needs to be removed. we are trying to determine the source of water since it has not rained this year yet. I know we need a vapor barrier, mold remediation, and once we determine where the water is coming from, possibly a sump pump.
Project Location: Vallejo, CA
Water in crawl space when raining
Project Location: Vallejo, CA
Hello, I would like to inquire about the following services for our home in Vallejo: - priority: installation of a vapor barrier in the crawl space and possibly treatment of wood destroying organism on the beams in the crawl space - possibly a sump pump in the crawlspace to make water go away in the Winter because I'm afraid water is sitting and starting to cause foundation issues Non urgent: - removal of old insulation and installation of new insulation in the attic - replacement of the duct work and furnace with installation of a new HVAC system or just a new furnace depending on costs (we currently don't have AC) Looking for a quote to begin work as soon as available. Thanks so much for your help. Warmly, JB
Project Location: Vallejo, CA
I want to put a vapor barrier in my crawlspace and clean it up a bit.
Project Location: Vallejo, CA
Cold damp dirt and rocks
Project Location: Vallejo, CA
We have a wet crawl space from the last two rainstorms and a mildew/mold smell in the front office.
Serving the following Vallejo, CA zip codes
94589, 94590, 94591, 94592
Service Area
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