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Crawl Space Vapor Barrier

Moisture and humidity in crawl spaces can lead to significant home damage and health risks. 

Safeguard your home with a dependable vapor barrier from Mount Valley Foundation Services, your crawl space specialists in South Carolina and Western North Carolina. AquaStop™ CrawlSeal™ is a premier solution to these challenges, offering a comprehensive crawl space encapsulation process. 

As experts in crawl space encapsulation, we provide a barrier against moisture to ensure your home’s health and durability. 

Explore this page to understand how a dry and professionally secured crawl space can benefit you. 

Understanding a Crawl Space Vapor Barrier 

A crawl space vapor barrier is a durable plastic sheeting installed on crawl space walls and floors. 

This barrier is crucial for managing excessive moisture, preventing water vapor from infiltrating your crawl space. Vapor barriers are your defense against dampness, mold, wood decay, and pest problems. 

Mount Valley Foundation Services employs a holistic approach with our CrawlSeal™. This strong, layered liner effectively shields your home from moisture, preserving your crawl space and contributing to your home’s overall wellbeing. 

Recognizing the Need for a Crawl Space Vapor Barrier 

Identifying the need for a crawl space vapor barrier is key. Look out for these indicators: 

These signs suggest excessive moisture and potential damage. Early detection and professional consultation are essential for a safe and healthy home. 

The Importance of a Crawl Space Vapor Barrier 

Implementing a vapor barrier is crucial if you notice dampness or humidity in your crawl space. Neglecting to install a barrier for moisture allows water entry, leading to damage and increased repair costs over time. 

Mount Valley’s encapsulation solutions not only protect your home but are a vital part of our comprehensive home health strategy. 

We advise against DIY installations as standard liners are inadequate and lead to further damage and costly repairs. It’s safer and more effective to rely on professionals equipped with the proper tools and expertise. 

Advantages of a Crawl Space Vapor Barrier 

Installing a vapor barrier offers multiple benefits, including: 

  • Enhanced Air Quality: Our CrawlSeal™ barrier limits moisture, reducing mold and mildew and improving your home’s air quality. 
  • Strengthened Structural Integrity: Keeping the crawl space dry helps maintain your home’s foundation and structure. 
  • Energy Efficiency: A moisture-free crawl space is better insulated, leading to reduced energy bills. 
  • Pest Deterrence: Our barrier creates an inhospitable environment for pests, preventing infestations. 

Our exclusive CrawlSeal™ liner is designed for durability and includes antimicrobial properties. Combined with our encapsulation technique, it ensures a clean, dry crawl space year-round. 

Installing a Crawl Space Vapor Barrier with Mount Valley 

Here’s how our team encapsulates a crawl space: 

Choosing Mount Valley Foundation Services guarantees a professional and enduring installation by local experts. 

Why Choose Mount Valley’s Crawl Space Vapor Barrier 

Our CrawlSeal™ system stands out with these features: 

  • Exceptional 20-mil thickness 
  • Antimicrobial properties 
  • Resistance to mold, mildew, and punctures 
  • Custom sizing to fit various surfaces 
  • Reflective white finish for a brighter space 
  • Comprehensive, transferable warranty 
  • Consistent protection with annual maintenance 

Get in Touch with Mount Valley for Crawl Space Encapsulation Today! 

Don’t let a damp crawl space affect your home’s health. Rely on Mount Valley Foundation Services for a drier, healthier crawl space with our CrawlSeal™ vapor barrier. Our innovative solutions address moisture issues effectively. 

Homeowners across South Carolina and Western North Carolina trust our expertise. Contact us now for a free inspection and take the first step towards securing your home. 


DIY installations are not recommended due to potential dangers, costs, and temporary fixes. Professional installation ensures proper fitting and sealing of the vapor barrier, and a thorough evaluation of your crawl space for any additional issues. Reach out to Mount Valley for a free inspection and encapsulation estimate. 

The installation duration varies based on crawl space size, existing conditions, and necessary repairs. We prioritize efficient, quality service. Most installations are completed in one to two days. Contact Mount Valley for a detailed inspection, no-obligation estimate, and an accurate timeframe. 

Minimal maintenance is needed, but Mount Valley offers an annual service plan for optimal performance. We inspect your crawl space and its current solutions, including the vapor barrier, to ensure continued protection. Contact us for more information and to schedule a free inspection

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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