Serving Fremont, San Jose, San Francisco

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Reviews From Fremont
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 Fremont, CA
Testimonials
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Your Local Crawl Space Repair Expert serving Fremont, CA

Crawl Space Repair & Encapsulation in Fremont, CA

Since 2003, Clean CrawlSpace Inc. has helped homeowners in Fremont, 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 Fremont, 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 Fremont

  • 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 Fremont, CA by delivering professional crawl space encapsulation, sump pump systems, drainage, dehumidifiers, and mold treatment that last. Schedule your free estimate today!

Work Requests From Fremont, CA
Project Location: Fremont, CA
Crawl space moister and uneven flooring
Project Location: Fremont, CA
We are looking for experts to do our crawl space insulation
Project Location: Fremont, CA
Moisture/water in crawl space
Project Location: Fremont, CA
Water leak in the kitchen left a pool of water in one corner in the crawl space.
Project Location: Fremont, CA
Extending our home. Framing will start soon. Want to insulate the crawl space.
Project Location: Fremont, CA
I would like to check my home for high humidity issues. In the early morning I see humidity can go up to 85% and during the day it stays around 55-60%. I think it is coming from the crawl space. The crawl space has no visible water leaks. However, an average humidity there is about 70% last week and 62% last couple of days. We have hard wood floors around the hose. It was built in 1969. I don't think the flor has a membrane under the hard wood. I am thinking of installing a vapor barrier in the crawl space. I need a professional check and an estimation of the options. The house is 1408 sq. ft. Please let me know if you could help. Thank you.
Project Location: Fremont, CA
There's visible mold growing in crawl space. I would like to figure out why or where it may be coming from.
Project Location: Fremont, CA
Encapsulate Crawlspace
Project Location: Fremont, CA
Crawl space insulation and dehumidifier installation
Project Location: Fremont, CA
There's a puddle of water in my basement crawl space. Called in a plumber to confirm there's no pipe leak. Suspecting moisture issues. Thanks for your help.
Project Location: Fremont, CA
I've high moisture in the crawl space although no water clogging problem as such. I'm told installation of vapor barrier would resolve the issue but interested to get it checked out.
Project Location: Fremont, CA
Crawlspace is potentially having more moisture as flooring is showing signs of high moisture in one room. I also see mold in that room due to high moisture level in the air. It is possible some water leak or moist soil condition in crawlspace is increasing humidity for the house.
Project Location: Fremont, CA
- smell from floor vents indicating likely drainage issues - insects coming through floor vents
Project Location: Fremont, CA
Believe we may have a moisture issue in our crawl space, which is causing mold. Want to get it looked at and see what our options may be to remediate the issue.
Project Location: Fremont, CA
General craw space moister control and possible sump pump installation.
Project Location: Fremont, CA
Crawl space cleanup
Project Location: Fremont, CA
I would like to install drain system and a automatic sump pump to pump crawl space water during rain seasons.
Project Location: Fremont, CA
Crawlspace clean
Project Location: Fremont, CA
Crawl space clean up
Project Location: Fremont, CA
I had water in my crawl space. I removed it using pump. I am looking for dehumidifiers solution and crawl space encapsulation. Will referred me. Please reach out to me.
Serving the following Fremont, CA zip codes
94536, 94538, 94539, 94555
Service Area
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