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As a homeowner or renter, you should understand the differences and benefits of crawl space encapsulation and sealing. We will explain what you should know between encapsulation and a sealed crawl space and help you make an informed decision on the best option for your home.

What Are Encapsulated or Sealed Crawl Spaces?

Crawl space encapsulation is a process where a durable, waterproof barrier is installed on the floor and walls of a crawl space. This barrier prevents moisture accumulation, mold growth, and pest infestations from ruining your home. Additionally, encapsulation includes installing a dehumidifier to control humidity levels in the space.

A sealed crawl space, on the other hand, involves sealing all vents, doors, and other openings to prevent the entry of outside air and moisture. However, it is not as comprehensive as encapsulation. Insulation is typically added to the walls and, in some cases, to the floor of the crawl space to improve energy efficiency. This method also includes the installation of a vapor barrier on the ground.

Pros and Cons of Each Approach

When figuring out what you need to know about the differences between encapsulated and sealed crawl spaces, consider the benefits and drawbacks of each option.



  • Provides a complete moisture barrier, leading to better moisture control
  • Reduces the risk of mold growth and pest infestations
  • Increases energy efficiency by reducing humidity levels
  • Can improve indoor air quality


  • Often more expensive than sealing a crawl space
  • Requires professional installation for the best results

Sealed Crawl Spaces


  • More cost-effective than encapsulation
  • Improves energy efficiency through added insulation
  • Reduces the risk of mold growth and pest infestations (though not as effectively as encapsulation)
  • Can be a DIY project if you’re comfortable working in tight spaces


  • Less comprehensive moisture control than encapsulation
  • May allow air leakage, leading to less effective humidity control

Choosing Between Encapsulation and Sealed Crawl Spaces

In order to choose the most appropriate solution for your home, consider the severity of moisture and humidity issues in your crawl space. If you frequently experience standing water or high humidity levels in the crawl space, encapsulation may offer greater protection from these issues. On the other hand, if your primary concern is energy efficiency and moisture issues are minimal, sealing your crawl space could be more cost-effective.

Contact Affordable Radon Services today for an effective solution that suits your home’s specific needs. Our team of experts specializes in encapsulation and sealed crawl space services. Whether you need superior moisture control or energy-efficient radon mitigation crawl space solutions, we’ve got you covered. Don’t compromise the health and safety of your household! Let us help you create a safe, healthy living environment. Contact us now!