Expert Crawl Space Repair Solutions in San Mateo, CA

Crawl Space Repair & Encapsulation in San Mateo, CA

Clean CrawlSpace Inc. has been protecting homes in San Mateo, 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 San Mateo, 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 San Mateo

• 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 San Mateo, 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.