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Crawl Space Dehumidifier

Due to their design and location, crawl spaces are highly susceptible to humidity and moisture. Unfortunately, moisture deteriorates the structures in your crawl space, threatening your home’s safety and value. 

As San Jose, Sacramento, and Oakland’s premier crawl space encapsulation specialist, Bay Area Underpinning provides a lasting solution: professional crawl space dehumidifier installation.  

What is a Crawl Space Dehumidifier?

Crawl space dehumidifiers remove moisture from the area beneath your home, where ground moisture is common. The dehumidifier draws in humid air and cools it to condense the moisture into water droplets, which then collect in a tank and drain away from the crawl space.  

The dehumidifier must operate regularly to ensure the area remains dry. Most units have a hygrometer to measure air moisture levels, allowing the dehumidifier to automatically activate and maintain optimal dryness. Crawl space dehumidifier installation protects your home and improves indoor air quality. 

Signs You Need a Crawl Space Dehumidifier

Northern California’s mild climate doesn’t mean crawl space issues can’t happen. The following signs may indicate the need for crawl space dehumidifier installation: 

These signs indicate excessive moisture. Installing a crawl space dehumidifier is an effective solution to prevent these issues. If you observe these symptoms, contact a crawl space professional

Is a Crawl Space Dehumidifier Necessary?

Installing a crawl space dehumidifier offers several benefits, including: 

  • Enhanced Air Quality: Reduces mold and musty odors, improving indoor air quality and reducing allergens. 
  • Structural Integrity: Protects your home’s foundation and structural components by preventing moisture-related damage. 
  • Energy Efficiency: Our ENERGY STAR-rated dehumidifier lowers energy bills while maintaining performance. 
  • Pest Deterrence: Decreases dampness in your crawl space, making it less inviting for pests. 

How We Install a Crawl Space Dehumidifier

Installing a crawl space dehumidifier is crucial to our comprehensive crawl space encapsulation service. Here’s what to expect: 

  • Optimal Placement: Identifying the ideal location for installation. 
  • Remove Old Units: Removing outdated or malfunctioning dehumidifiers. 
  • Installation: Setting up the new dehumidifier in the designated area. 
  • Connection: Integrating the dehumidifier with a condensate pump and other waterproofing solutions. 
  • Vent Sealing and Door Replacement: Sealing off vents and updating doors to control air and moisture flow. 
  • Drainage Systems: Installing drainage solutions, like sump pumps. 
  • Insulation Addition: Adding insulation panels to help regulate temperature. 
  • Vapor Barrier Installation: Encapsulating the space with a durable vapor barrier to prevent moisture intrusion. 
  • Maintenance Schedule: Establishing a regular maintenance schedule to ensure ongoing protection. 

Why Bay Area Underpinning’s Dehumidifier Installation is Best

Our dehumidifiers are unique from the competition due to several key features: 

  • Energy-efficient ENERGY STAR rating. 
  • High moisture removal capacity. 
  • Quiet and self-draining operation 
  • Compact design 
  • Comprehensive warranty and maintenance 

Choose Bay Area Underpinning for Crawl Space Dehumidifier Installation

A humid crawl space negatively impacts indoor air quality and structural integrity. Bay Area Underpinning installs powerful crawl space dehumidifiers to eliminate this moisture and create a healthier environment. 

Homeowners in San Jose, Sacramento, and Oakland, California, trust Bay Area Underpinning for long-lasting crawl space repair. Schedule a free inspection to ensure your crawl space remains safe, dry, and secure. 

Crawl Space Dehumidifier FAQs

Dehumidifiers are essential even in encapsulated crawl spaces. These units maintain controlled moisture levels, preventing mold growth. Dehumidifiers also enhance indoor air quality by reducing allergens. 

Crawl space dehumidifier costs vary depending on the size and condition. Contact a crawl space professional for a free inspection and cost estimate.

In the summer, a dehumidifier allows you to reduce humidity while slightly increasing your thermostat setting. Over time, this adjustment can significantly lower your energy costs. Contact a crawl space professional to learn more. 

Our Locations


2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089