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Crawl Space Insulation

Homeowners often grapple with issues like cold floors, drafts, and rising energy bills in South Carolina and Western North Carolina, however these can be symptoms of underlying crawl space moisture problems. If left unchecked, these problems will continue to worsen over time. 

Crawl space insulation is key to preserving a home’s comfort and health. Lack of proper insulation can lead to moisture buildup, mold, and unwanted pests. By insulating your crawl space, you prevent these problems and boost your home’s energy efficiency. 

Mount Valley Foundation Services offers an effective solution with our AquaStop™ ExTremeBloc™ Crawl Space Insulation. As experts in improving home environments across South Carolina and Western North Carolina, we specialize in a crawl space encapsulation process that solves current issues and wards off future problems. 

Discover on this page how our expertise can elevate the comfort and durability of your home. 

Understanding Crawl Space Insulation 

Crawl space insulation is a protective layer installed beneath your home that halts the flow of cold and moist air into your home and crawl space. 

It’s a vital part of home energy efficiency and indoor air quality. Insulating the crawl space provides a barrier against heat loss and creates a moisture-resistant zone, reducing mold risk and deterring pests. 

Effective crawl space insulation, like ExTremeBloc™ boards, is designed to endure the humid conditions typical under homes. 

When combined with crawl space encapsulation, which seals the area from external air and moisture, your home enjoys stable humidity levels, lowered energy costs, and enhanced air quality. 

At Mount Valley Foundation Services, we view crawl space repair as integral to your home’s overall health, contributing to a more comfortable living space and safeguarding your home’s structural integrity. 

Indicators for Crawl Space Insulation Needs 

Watch for these signs indicating your crawl space needs insulation: 

These symptoms signal moisture issues that can lead to serious damage. It’s crucial to get a free inspection from crawl space experts promptly. 

The Importance of Crawl Space Insulation 

Insulating your crawl space is essential for your home’s protection. 

Neglecting insulation can lead to escalating moisture and humidity, fostering mold growth and attracting pests and rodents. Mount Valley Foundation Services stresses early action to safeguard your home’s structure and inhabitants’ health. 

DIY inspections or insulation are not recommended due to the area’s hazards. Rely on Mount Valley Foundation Services professionals for accurate assessment and protection of your crawl space. 

Varieties of Crawl Space Insulation 

Common insulation types for crawl spaces include: 

Fiberglass Insulation 

Fiberglass, widely used in homes, is not ideal for crawl spaces. Typically installed between floor joists, it’s prone to moisture, mold, and pests. 

Spray Foam Insulation 

Spray foam, applied to crawl space walls and joists, is not the best choice for this space. 

It’s often closed-cell, making it more rigid and difficult to remove, yet vulnerable to mold, odors, and termites in damp crawl spaces. 

Foam Board Insulation 

Pre-formed ExTremeBloc™ thermal foam board sheets are more effective for crawl spaces. 

They offer high insulation value and moisture resistance, despite being thinner than fiberglass. 

Advantages of Crawl Space Insulation 

Proper insulation brings numerous benefits, including: 

  • Moisture Control: Prevents mold and pests 
  • Energy Efficiency: Reduces heating/cooling costs 
  • Comfort: Maintains stable indoor temperatures and air quality 

Our products and services ensure the best results for your home. 

Mount Valley Foundation Services’ Installation Process 

Our comprehensive crawl space encapsulation includes: 

Rely on Mount Valley Foundation Services for efficient insulation and encapsulation. 

Why Choose Our Crawl Space Insulation 

Mount Valley Foundation Services’ ExTremeBloc™ stands out with: 

  • Lightweight, durable panels 
  • Environment-friendly materials 
  • Class A fire rating 
  • Graphite-infused polystyrene 
  • Radiant heat barrier 
  • Integrated pest deterrents 
  • High R-value for thermal resistance 
  • Moisture resistance 
  • Installation allowing pest control checks 

Contact Mount Valley Foundation Services for Your Insulation Needs 

Trust our team for all your crawl space needs. With years of service in South Carolina and Western North Carolina, our experts provide swift, efficient crawl space insulation installations. 

We offer various solutions and a quality guarantee. Contact us today to schedule a free inspections and estimates to find the best options for your home. 


R-value measures insulation’s thermal resistance. Higher R-values mean better heat retention. Contact us to learn more about our crawl space insulation’s R-value. 

While most insulation types last 15-20 years, they can deteriorate due to moisture. Our ExTremeBloc™ is designed as a permanent solution. Contact us for more information and a free inspection

Costs vary based on damage severity, crawl space size, and required solutions. We provide a free inspection and no-obligation estimate with various financing options

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Our Locations

Asheville Location

53 N Market St, Suite 5
Asheville, NC 28801

Augusta Location

630 Ellis Street, Suite 2-B
Augusta, GA 30901

Charleston Location

1850 Ashley River Rd
Charleston, SC 29407

Columbia Location

2110 Commerce Drive
Cayce, SC 29033

Greenville Location

300 South Ave
Spartanburg, SC 29306

Myrtle Beach Location

1704 N. Oak Street, Suite 3
Myrtle Beach, SC 29577