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Crawl Space Vapor Barrier Installation

Finished, clean, dry crawl space.

Moisture and humidity in your crawl space aren’t just annoying; they’re precursors to significant home damage and potential health risks. 

Safeguard your home with a reliable vapor barrier from AFS Foundation Repair, the leading crawl space specialist serving Alabama, Tennessee, Kentucky, and beyond. With us, you get our AquaStop™ CrawlSeal™ vapor barrier that permanently solves moisture problems.

On this page, you’ll learn all about our vapor barriers and our installation services. If you need a vapor barrier, get started by scheduling a free inspection!

What is a Crawl Space Vapor Barrier? 

Installing a vapor barrier inside a crawl space.

A crawl space vapor barrier is a plastic sheet that seals crawl space walls and exposed earth floors. 

Vapor barriers seal your crawl space against moisture which puts a hard stop to mold, wood rot, and pest invasions. 

By choosing AFS, you’ll get our CrawlSeal™—our custom, multi-layered barrier—to protect your home from moisture’s harmful impact.

Signs You Need Crawl Space Vapor Barrier Installation

Recognizing the need for a crawl space vapor barrier installation is essential. Ignoring problem signs can lead to more costly repairs in the future. Look for these indicators: 

These signs suggest excessive moisture, drainage issues, and other forms of damage. Staying alert helps keep your home safe and healthy. Contact the crawl space experts at AFS at the first sign of trouble. 

Is Crawl Space Vapor Barrier Installation Necessary? 

Yes, installing a vapor barrier is necessary if your crawl space has moisture or humidity. Without this barrier, moisture freely enters the area, leading to damage and escalating repair costs over time. 

We advise against DIY installations, as vapor barriers from general retailers are often too thin and don’t adequately protect crawl spaces.  

This can result in further damage and costly repairs down the line. Additionally, crawl spaces present health and safety risks without proper equipment. It’s safer to rely on professionals equipped with the necessary tools, training, and safety gear. 

What Are the Benefits of Installing a Crawl Space Vapor Barrier? 

Installing a vapor barrier to prevent moisture at its source provides several advantages: 

  • Enhanced Air Quality: Our CrawlSeal™ barrier prevents moisture, reduces musty odors, and improves indoor air quality. 
  • Stronger Structural Integrity: A dry crawl space maintains the structural strength of your home. 
  • Energy Savings: A moisture-free crawl space means better insulation, increased energy efficiency, and reduced utility bills. 
  • Pest Prevention: Damp crawl spaces attract pests like termites. A vapor barrier and other moisture control methods create an environment that’s less appealing to pests and hinders their entry. 

Our specially designed CrawlSeal™ liner is puncture-resistant and includes antimicrobial features. Combined with our encapsulation process, it ensures that your crawl space remains clean, dry, and well-ventilated long term. 

How We Install a Crawl Space Vapor Barrier 

The vapor barrier is central to a crawl space encapsulation system, but it is just one component.

Here’s how our team approaches encapsulation:

  • Performing a detailed inspection of the crawl space to determine specific needs. 
  • Sealing off crawl space vents and updating entry doors for better moisture and airflow control. 
  • Installing the crawl space drainage, matting, and a sump pump for water management. 
  • Applying insulation panels to walls for temperature control. 
  • Encapsulating the crawl space with our professional-grade vapor barrier. 
  • Installing our energy-efficient dehumidifier to regulate humidity. 
  • Connecting the dehumidifier to the sump pump or drainage system. 
  • Providing annual maintenance checks for lasting protection. 
Professional crawl space vapor barrier installation

Trust AFS for vapor barrier installation that lasts. With us, you can be confident your Southeast U.S. crawl space is in the hands of local experts. 

Why Our Crawl Space Vapor Barrier is the Best Choice for Your Home 

The AFS CrawlSeal™ system excels over other vapor barriers because it offers the following benefits: 

  • Robust 20-mil thickness 
  • Antimicrobial features 
  • Resistance to mold, mildew, and punctures 
  • Customizable sizing for various surfaces 
  • A reflective white finish that brightens the area 
  • Long-lasting warranty with financing options 
  • Consistent protection with annual maintenance 

Contact AFS for Crawl Space Vapor Barrier Installation

AFS installer working at a home.

Don’t tolerate the negative effects of a damp, unhealthy crawl space. Trust AFS to provide a dry, healthy crawl space with our CrawlSeal™ vapor barrier. Our solutions revolutionize your home by addressing moisture issues at their source. 

Homeowners across the in Alabama, Tennessee, Kentucky, and elsewhere have relied on our innovative solutions for years. We’re ready to assist you as well. Reach out to us now to book a free inspection and start your journey to a safer, more secure home. 

Crawl Space Vapor Barrier FAQs

Yes, by reducing air leaks and keeping insulation dry, vapor barriers improve the thermal performance of a building, leading to better energy efficiency.

Without a vapor barrier, buildings are susceptible to moisture damage, which can compromise structural integrity, reduce insulation effectiveness, and promote mold and mildew growth.

Damaged vapor barriers can compromise their effectiveness, allowing moisture to penetrate and potentially leading to mold and structural damage. It’s important to repair or replace damaged sections promptly.

Our Locations

Birmingham AL

130 Interstate Commerce Crt. Bldg. 100 & 200
Alabaster, AL 35007

Chattanooga TN

214 Industrial Park Dr.
Soddy-Daisy, TN 37379

Columbus GA

2701 Opelika Road
Phenix City, AL 36870

Dothan AL

1909 Montgomery Hwy, Suite 322,
Dothan, AL 36303

Florence AL

118 E Mobile St
Florence, AL 35630

Huntsville AL

2415 Jordan Road
Huntsville, AL 35811

Knoxville TN

3028 E Governor John Sevier Highway
Knoxville, TN 37914

Louisville KY

1904 Watterson Trail, Suite 130
Louisville, KY 40299

Mobile AL / Biloxi MS

3131 Hamilton Blvd.
Theodore, AL 36582

Montgomery AL

445 Dexter Avenue, Suite 4050
Montgomery, AL 36104

Nashville TN

1519 Heil Quaker Blvd.
LaVergne, TN 37086

Pensacola FL

89 W. Hood Dr.
Pensacola, FL 32534