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Crawl Space Insulation

Common home discomforts like cold floors, drafts, and rising energy bills often point to moisture issues in the crawl space. Ignoring these signs can lead to worsening conditions. 

Ensuring your crawl space is well-insulated is vital to maintaining a cozy, healthy home. Without proper insulation, risks like moisture buildup, mold, and pest invasions can occur. Insulating your crawl space combats these issues and boosts your home’s energy efficiency. 

BQ Basements & Concrete utilizes AquaStop™ ExTremeBloc™, a top-of-the-line insulation solution, as part of our comprehensive crawl space encapsulation systems. We excel in improving the health and durability of homes across Greater Philadelphia, New Jersey, and Delaware, tackling and preventing crawl space problems. 

Explore this page to learn how our expertise and premium insulation solutions can improve your home’s comfort and longevity. 

Understanding Crawl Space Insulation 

Crawl space insulation is crucial for regulating your home’s crawl space temperature. 

This vital component of home energy efficiency and indoor air quality provides a thermal barrier and moisture resistance, essential for preventing mold and avoiding pests. 

Our high-quality insulation materials are designed to withstand the humid conditions in crawl spaces. 

Combined with our crawl space encapsulation services, which seal the area from external factors, you can expect enhanced humidity control, reduced energy costs, and enhanced indoor air quality. 

BQ Basements & Concrete views crawl space insulation as fundamental to maintaining a healthy, comfortable home and safeguarding structural integrity. 

Signs Your Crawl Space Needs Proper Insulation 

Watch for these indicators that suggest your crawl space requires insulation: 

These signs often point to underlying moisture issues, which, if left unaddressed, could lead to significant damage. Professional inspection and repair estimates from crawl space experts are crucial. 

Is Crawl Space Insulation Necessary? 

Yes, insulating your crawl space is an essential part of protecting your home. 

Neglecting insulation can elevate moisture and humidity levels, promoting mold growth that affects respiratory health and inviting pests and rodents through uninsulated gaps. 

BQ Basements & Concrete emphasizes proactive measures. Our holistic solutions are designed to prolong your home’s structural integrity and enhance your family’s health and comfort. 

We discourage DIY attempts at crawl space inspection or insulation installation due to the risks involved and the inefficiency of generic solutions. Trust BQ Basements & Concrete for precise evaluation, repair, and protection. 

Types of Crawl Space Insulation 

Commonly used crawl space insulation types include: 

Fiberglass Insulation 

Although popular in homes throughout Pennsylvania and the U.S., fiberglass insulation is unsuitable for crawl spaces. 

This material is installed between floor joists and rim joists to regulate temperatures within the crawl space and the above floors. However, its vulnerability to moisture, mold, and pests makes it inappropriate for crawl spaces. 

Spray Foam Insulation

Spray foam insulation, applied to crawl space walls, joists, and rim joists, protects against extreme temperatures but is not suitable for crawl spaces. 

Closed-cell spray foam is more rigid and durable, but not completely damage-proof. It can foster mold, release harmful odors, and attract pests like termites in moist crawl space environments. 

Foam Board Insulation 

Foam board insulation is designed for installation in crawl space interiors, offering excellent heat retention and insulation properties. Consider large, pre-cut thermal foam board panels like our exclusive ExTremeBloc™ system for superior crawl space protection.  

Benefits of Crawl Space Insulation 

Installing the proper crawl space insulation offers many benefits, including: 

  • Moisture Management: Insulating your crawl space blocks moisture entry into your home. This measure effectively averts mold and pests, and addresses other ground moisture issues, safeguarding your home’s health and safety. 
  • Increased Energy Efficiency and Savings: Proper insulation means less strain on your heating and cooling systems, reducing energy usage and lowering utility bills. By insulating, you effectively keep out the sweltering heat of summer and the chill of winter, enhancing your home’s energy efficiency and leading to financial savings on climate control costs. 
  • Enhanced Indoor Comfort: Similarly, insulation helps maintain a consistently comfortable environment inside your home. By installing insulation panels, your floors remain warmer during winter and cooler in summer, contributing to a more pleasant living space. Additionally, insulation significantly improves your home’s air quality, ensuring a healthier living space for your family. 

BQ Basements & Concrete’s specialized solutions and expert services ensure optimal results. Our advanced, quality products offer superior performance compared to standard options, adding exceptional value to your home. 

How We Install Crawl Space Insulation 

Crawl space encapsulation is a comprehensive process incorporating several key components, including insulation. Our approach to installing these all-inclusive solutions involves the following steps: 

Rely on BQ Basements & Concrete for a thorough and proficient installation of your crawl space insulation and encapsulation, ensuring quality service from start to finish.  

Why Our Crawl Space Insulation is a Superior Choice 

BQ Basements & Concrete’s foam board insulation is distinguished by several unique features, including: 

  • Lightweight and robust panels 
  • Eco-friendly materials 
  • Class A fire rating 
  • Graphite-infused polystyrene composition 
  • Reflective heat barrier 
  • Integrated termite and pest deterrents 
  • High R-value for excellent thermal resistance 
  • Moisture resistance 
  • Designed for easy pest control inspections 

Contact BQ Basements & Concrete for Crawl Space Insulation 

At BQ Basements & Concrete, we understand the significance of effective crawl space insulation. Our professionals, with more than 25 years of experience serving homeowners throughout the region, are equipped to install crawl space insulation promptly and proficiently. 

We offer various options to suit your unique requirements and budget, always emphasizing quality. Committed to our customers, BQ Basements & Concrete provides free inspections and estimates, empowering you to make the best decisions for your home. 


The cost of installing crawl space insulation varies based on the condition of the crawl space, its size, and necessary repairs. BQ Basements & Concrete offers a comprehensive, free inspection, a detailed estimate outlining costs, and financing options. Contact us today to learn more.

While most insulation materials last 15 to 20 years, they can deteriorate due to mold and moisture if not properly sealed and encapsulated. BQ Basements & Concrete’s premium foam board insulation is designed to be a lasting solution. Contact us for more details and to schedule a free crawl space inspection.

The R-value measures a material’s thermal resistance, which is essential for crawl space insulation. A higher R-value means better heat retention. To learn more about BQ Basements & Concrete’s effective crawl space insulation and R-value, contact us for a free inspection

BQ Service Area Map

Our Locations


1227 Liberty St., Suite 206
Allentown, PA 18102

New Jersey

535 Route 38 East, 149E
Cherry Hill, NJ 08002


106 Park Drive
Montgomeryville, PA 18936

West Chester

1503 Mcdaniel Dr., Suite 4
West Chester, PA 19380