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Mold in Crawl Space

Crawl space mold is a common yet overlooked problem that impacts your home’s structure and your family’s health, but with solutions from Bay Area Underpinning, you can keep mold out of there permanently. 

Bay Area Underpinning serves Oakland, Sacramento, San Jose, and surrounding areas with innovative crawl space encapsulation methods. With us, you can breathe easier knowing moisture problems and mold are cut out at the source. 

What is Crawl Space Mold?

Mold is a fungus that thrives on moisture, organic materials, and dark spaces. Crawl spaces usually fit all three requirements.  

Crawl space mold may appear as spots or patches in colors like black, brown, white, or green. Unfortunately, mold in the crawl space can spread up into your home, affecting the air quality and posing health risks, particularly for those with allergies or respiratory conditions. 

What Causes Crawl Space Mold?

Mold needs specific conditions to grow and thrive in. An unprotected crawl space provides mold with the perfect environment to grow. Here is what causes it: 

Recognizing and addressing these signs early will help you avoid mold growth from getting worse. Contact Bay Area Underpinning to inspect your home more thoroughly if you notice any of these signs. 

How to Fix Crawl Space Mold 

Treating and preventing crawl space mold requires a comprehensive approach. Solving the issue is only possible when all sources of moisture in your crawl space have been dealt with. 

Working with a professional team is the best way to tackle active mold growth and the underlying moisture issues. With Bay Area Underpinning, you will receive an industry leading crawl space encapsulation system to keep water out. 

Our encapsulation system creates a dry and healthy crawl space environment, preventing the conditions that allow mold growth. We ensure a durable, long-lasting fix that provides you with a safer living space overall. 

Our Comprehensive Mold Remediation Method 

Our remediation process includes: 

Why Address Crawl Space Mold Now? 

Addressing crawl space mold can provide you with a number of benefits, including: 

  • Health: Improves indoor air quality, essential for those with respiratory issues.
  • Structural Safety: Helps prevent decay in your home’s foundational elements.
  • Damage Control: Quick action reduces mold and structural damage.
  • Home Value: A mold-free crawl space adds significant real estate value.

Choose Bay Area Underpinning for Expert Crawl Space Encapsulation Near You! 

Choose Bay Area Underpinning for expert crawl space encapsulation and mold remediation. Our team is dedicated to maintaining a healthy and secure crawl space in your home. Mold is not just a nuisance but a significant health risk and a threat to your property’s structural integrity. 

Protect your home from the ground up. Contact us today to schedule a free inspection and receive a no-obligation estimate. 


DIY mold removal, such as scrubbing with bleach, will not address the underlying cause: moisture. Even if a DIY method temporarily cleans the wall, mold will return if the underlying water issue is not resolved.

Yes, regular inspections identify and address crawl space issues early, preventing mold growth and other complications.

Although both are types of fungi, wood rot only targets wooden structures. Mold feeds on any organic material and is a health risk to humans.

Our Locations


2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089