Serving Fremont, San Jose, San Francisco

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Reviews From Cupertino
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 Cupertino, CA
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Crawl Space Repair Solutions in Cupertino, CA

Crawl Space Repair & Encapsulation in Cupertino, CA

Clean CrawlSpace Inc. has been helping homeowners in Cupertino, CA protect their homes from mold, humidity, and structural damage since 2003. As a certified CleanSpace® dealer, we specialize in full crawl space encapsulation by sealing off moisture and improving air quality with a 20-mil vapor barrier backed by a 25-year warranty. Systems can include custom drainage layout and professional sump pump installation to actively remove any water that enters during extreme conditions.

 

If you’re dealing with musty smells, standing water, sagging floors, or rising humidity, your crawl space may be putting your entire home at risk. It’s easy to feel overwhelmed but you don’t have to figure it out alone. Clean CrawlSpace Inc. has been solving these exact problems for homeowners in Cupertino, CA for over 20 years. As a certified CleanSpace dealer, we specialize in fixing what others miss. From sump pump systems and drainage to vapor barriers, dehumidifiers, and structural support, we install complete, warrantied solutions.

 

Clean CrawlSpace Inc. offers a full range of crawl space solutions designed to eliminate moisture, prevent mold, and restore structural integrity. Each system is custom-designed for homes in Cupertino, CA and installed with long-term performance in mind.

 

Our services in Cupertino:

  • Crawl Space Encapsulation System: A complete sealing system using the CleanSpace® 20-mil vapor barrier to line the floors and walls of your crawl space. This barrier blocks moisture and outside air, reducing mold, wood rot, and musty odors while improving energy efficiency. Backed by a 25-year transferable warranty.
  • Sump Pump Installation: Professional installation of sump pump systems like SmartSump™ and UltraSump®, complete with airtight lids, water alarms, and battery backups. These systems actively remove water before it can cause damage, and are often paired with perimeter drainage for added protection.
  • Dehumidifier & Humidity Control: High-performance dehumidifiers like the SaniDry Sedona are designed specifically for crawl spaces. These systems keep humidity in check to stop mold, improve air quality, and maintain a dry environment beneath your home.
  • Structural Support Jacks: SmartJack® crawl space support posts are steel piers anchored into stable soil to lift and support sagging beams and joists. These adjustable jacks provide long-term stabilization and help restore uneven floors.
  • Crawl Space Insulation: Closed-cell, moisture-resistant insulation including SilverGlo™ wall panels and TerraBlock™ floor insulation. These materials resist mold, improve energy efficiency, and are designed to withstand crawl space conditions.
  • Mold Treatment & Cleanup: Safe application of Mold-X2 products to treat surface mold and prevent it from returning. This treatment is part of a complete system that includes moisture control to ensure long-lasting results.
  • Crawl Space Drainage Systems: Interior drainage channels or trench drains direct groundwater toward the sump pump. These systems are crucial for preventing flooding and are customized to each crawl space’s layout and water conditions.
  • Air Purifiers: Optional air purification systems improve the air flowing into your home from the crawl space. These systems help remove allergens, mold spores, and odors to create a healthier indoor environment.

 

Crawl Space Issues? Get a Free Encapsulation & Repair Estimate!

If you have a damp or damaged crawl space, contact Clean CrawlSpace Inc. for a free encapsulation and repair estimate in Cupertino, CA and nearby.

Work Requests From Cupertino, CA
Project Location: Cupertino, CA
Condensation on windows. Mildew/mold in bathrooms.
Project Location: Cupertino, CA
Attic clean and insulation , crawl space clean and seal
Project Location: Cupertino, CA
Hello, we have a home that has 85-90% humidity in the crawl space and are looking for a solution to address this. If someone could come to provide a free estimate asap that would be very helpful.
Project Location: Cupertino, CA
Buying a home and need crawl space cleaned & sealed.
Project Location: Cupertino, CA
Crawl space cleanup needed.
Project Location: Cupertino, CA
Project Location: Cupertino, CA
Odor from crawl space
Project Location: Cupertino, CA
Brought an old house. interested to makeover crawlspace.
Project Location: Cupertino, CA
Crawl Space flooding. Water needs to be pumped out and crawl space dried ASAP
Project Location: Cupertino, CA
Interested in a crawlspace vapor/moisture barrier quote.
Project Location: Cupertino, CA
We have some water in the crawl space due to broken pipe. We need to put some sand and limestone to soak up the water.
Project Location: Cupertino, CA
I have moisture problem in my crawlspace. Need a solution and an estimate
Project Location: Cupertino, CA
Damp crawl space.
Project Location: Cupertino, CA
Extensive mold problem under hardwood floor.
Project Location: Cupertino, CA
My old sump pump which is used to pump the water out of crawl space (in case water accumulated) of the house, does not work. Just want to quote how much it costs to install a new one. Thanks,
Project Location: Cupertino, CA
Need a quote for installing a sump-pump to address a wet crawl-space problem. We already have a report from a Soils Engineer. The sump-pump is to be installed in accordance with the recommendation in the report.
Project Location: Cupertino, CA
Need to insulate the crawl space.
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