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Moisture in Crawl Space

Crawl spaces might be out of sight, but they are responsible for keeping your house stable and healthy. Excessive moisture in these areas causes significant trouble.  

Even though where we serve in Northern California is mostly dry, moisture still affects your home during unusually humid days. Bay Area Underpinning helps homeowners in Oakland, Sacramento, and San Jose address crawl space moisture with comprehensive encapsulation methods

What is Crawl Space Moisture?

Moisture in your crawl space refers to any water, whether liquid or vapor, present beneath your home. While some moisture is normal, too much can harm your home. Here’s what could happen: 

Moisture degrades indoor air quality and compromises structural integrity. 

How Does Moisture Get into a Crawl Space?

Most crawl spaces are built in a way that allows moisture to enter beneath your home. This is due to old building codes and out-of-date construction methods. 

Here’s the most common way moisture infiltrates a crawl space:  

  • Crawl spaces are close to the ground and usually have damp, dirty floors. 
  • Rainy days or humid air can seep into the crawl space through open vents. 
  • When cool surfaces in the crawl space mix with warm outdoor air, condensation forms below your home. 
  • Moisture can enter if plumbing lines start to leak. 
  • If drainage on your property (gutters or yard grading) is faulty, water is likely to flow under the crawl space. 

It’s crucial to identify these issues early to keep your home safe and sound. If you notice problems, contact us immediately to avoid further damage.  

How to Fix Moisture in a Crawl Space

Fixing moisture problems in crawl spaces is essential; simple solutions like using a dehumidifier alone might not be enough.  

You need full-scale crawl space encapsulation to completely block moisture. Here’s what we do at Bay Area Underpinning: 

Our techniques and tools are top-notch, designed to keep your crawl space dry and healthy. 

Why Address Crawl Space Moisture Now?

Here’s why you should address crawl space moisture as soon as possible: 

  • To prevent damage to your house’s foundation and structure. 
  • To keep the air inside your home healthy and mold-free. 
  • To deter pests that are drawn to moisture. 
  • To help your home stay warmer or cooler, reducing energy costs. 

At Bay Area Underpinning, we offer complete and lasting solutions for moisture control providing you peace of mind. 

Choose Bay Area Underpinning to Stop Crawl Space Moisture Problems Near You! 

Don’t let moisture problems damage your home and health. In Northern California’s varying climate, keeping your crawl space dry is essential. Trust Bay Area Underpinning to protect your home with our expert solutions, tailored to the local conditions. We serve homeowners in Oakland, San Jose, Sacramento, and other nearby cities

Our team uses advanced techniques and premium materials, ensuring your crawl space remains dry and healthy. Contact Bay Area Underpinning today to set up a free crawl space inspection

Crawl Space Moisture FAQs

Without the proper tools or training, DIY approaches to crawl space moisture are risky, difficult and ineffective. For the best results, consult a professional.

Absolutely. Addressing crawl space moisture protects your home’s structural integrity and ensures a healthier living environment, providing long-term benefits to you and your family.

The cost varies based on your crawl space’s size, condition, and the solutions required. Bay Area Underpinning provides a free inspection and accurate price for your home’s needs.

Our Locations


2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089