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Crawl Space Insulation

Drafty conditions and unusually high energy bills are clear indicators of moisture issues in your home’s crawl space, with damaged or wet insulation often being the primary culprit.

By choosing Bay Area Underpinning provides professional crawl space encapsulation to homeowners in Oakland, San Jose, Sacramento, and other nearby cities our service area. By choosing us, you get our ExTremeBloc™ insulation replacement and installation services.

As Northern California’s leading crawl space expert serving San Jose, Sacramento, and Oakland, our solutions address existing problems and prevent future issues.

What is Crawl Space Insulation?

Crawl space insulation is a material installed under your home that regulates internal temperatures and mitigates moisture problems.

Proper insulation acts as a barrier against heat loss, reduces moisture and other unhealthy conditions and enhances indoor air quality.

Bay Area Underpinning considered these factors when developing ExTremeBloc™. Our moisture-resistant insulation panels are most effective when integrated with comprehensive encapsulation solutions that seal the crawl space.

Signs You Need Crawl Space Insulation Replacement or Installation

Identifying signs of crawl space insulation failure is crucial. However, navigating the crawl space area is risky, leaving it a job best left to a Bay Area Underpinning professional with the proper safety gear and equipment.

Below are the signs to watch for and a checklist our inspectors use to assess your crawl space:

Homeowner Checklist

Professional Checklist

If neglected, crawl space moisture leads to significant issues and costly repairs. When you notice these warning signs, schedule a free inspection with a crawl space expert like Bay Area Underpinning.

Is Crawl Space Insulation Necessary?

Crawl space insulation is essential to home health, safety, and comfort. We advise against DIY self-installation, as products from big-box stores often do not resolve underlying issues.

Trust Bay Area Underpinning professionals for precise crawl space assessment, repair, and protection. We recommend proactive intervention as part of our whole-home solution to safeguarding your home’s structural integrity and your family’s health.

Common Crawl Space Insulation Types

Crawl space insulation materials vary, but there are three primary types commonly used:

  • Fiberglass: Very common, but not ideal for crawl space use. It is typically installed between floor joists and is moisture, mold, and pest prone.
  • Spray Foam: Applied to surfaces like walls and joists, but its closed-cell type fosters mold, chemical odors, and termite damage in damp conditions.
  • Foam Board: Thermal foam board insulation, like our ExTremeBloc™, is optimal for crawl spaces. The custom-fit panels are installed on interior walls and feature reflective surfaces for heat retention. ExTremeBloc™ offers superior insulation value and is thinner than alternatives like fiberglass.

The Benefits of Crawl Space Insulation

Crawl space insulation replacement and installation through Bay Area Underpinning offers several benefits:

  • Moisture control
  • Mold prevention
  • Pest deterrence
  • Energy savings
  • Consistent floor temperatures
  • Improved indoor air quality

Combining encapsulation services with insulation installation is essential for a healthy home. Our patented products outperform standard options, providing superior benefits for your home.

How We Install Crawl Space Insulation

Crawl space insulation is an essential component of our comprehensive solution, which also includes water management and encapsulation services to ensure complete protection.

Our installation process includes:

Why Our Crawl Space Insulation is the Best Option

Our crawl space insulation replacement and installation are the best option for your home because it features:

  • Lightweight and durable panels
  • Eco-friendly materials
  • Class A fire rating
  • Graphite-infused, expanded polystyrene core
  • High R-value for exceptional thermal resistance
  • Radiant heat barrier coating
  • Integrated termiticide and pest deterrent
  • Installation includes a gap for pest control inspections

Contact Bay Area Underpinning for Reliable Crawl Space Insulation

At Bay Area Underpinning, we are experts in crawl spaces. Our experienced team specializes in enhancing homes located in our service area including the cities San Jose, Sacramento, Oakland, and surrounding areas. Trust our skilled professionals to address your crawl space repair and insulation needs.

Choosing Bay Area Underpinning provides you access to proprietary solutions tailored to your needs and budget. Make the best decision for your home by contacting us today for a free crawl space inspection and repair estimate.

Crawl Space Insulation FAQs

The R-value indicates a material’s thermal resistance level. Higher R-values signify superior heat retention. Learn more about crawl space insulation and R-value by contacting a professional for a free inspection.

In most cases, crawl space insulation panels won’t need replacing for decades unless they’re damaged, wet, or losing effectiveness due to settling. Professional crawl space assessments identify tears, mold, and reduced thickness. Contact an expert for a free inspection.

Crawl space insulation costs vary based on the area’s condition, size, and required solutions. Experts provide a no-obligation estimate after a free inspection, detailing costs and financing options.

Our Locations


2333 Courage Dr. Suite C
Fairfield, CA 94533

San Jose

1161 N Fair Oaks Ave
Sunnyvale, CA 94089