What is crawl space encapsulation?

Crawl space encapsulation is the process of sealing and waterproofing the crawl space to create a controlled environment. It involves installing a vapor barrier, sealing vents and openings, and addressing moisture issues to improve the overall condition of your home.

Why do I need crawl space encapsulation?

Crawl space encapsulation is a great investment to protect the health and safety of your home. The benefits include:

  • Controls moisture
  • Improves indoor air quality
  • Lowers energy bills
  • Prevents structural or water damage
  • Prevents mold growth
  • Reduces pest infestations
  • Creates a clean environment

What is included in crawl space encapsulation?

If you have an unsealed crawl space or exposed dirt floors, we highly suggest installing a vapor barrier. It's a thick, polyurethane lining that is applied to the walls, ceiling, and floor to seal your home from the earth.

Vapor Barrier in Nebraska, Western Iowa, Central & Western Kansas and Northwestern Missouri

Vapor Barrier

The number one source of all crawl space problems is moisture. It comes from two sources: the ground and the outdoor air. Water vapor and high humidity in your crawl space put the health, comfort, and safety of your home in jeopardy.
Sump Pumps in Nebraska, Western Iowa, Central & Western Kansas and Northwestern Missouri

Sump Pump

Sump pumps help crawl spaces that have a lot of groundwater seeping in. It captures the groundwater before it enters your home and pumps it to a designated area.
Dehumidifier in Nebraska, Western Iowa, Central & Western Kansas and Northwestern Missouri


Crawl spaces with high humidity and moisture need a dehumidifier. The dehumidifier will suck the moisture out of the air and keep it at an acceptable level.
Thermal Insulation in Nebraska, Western Iowa, Central & Western Kansas and Northwestern Missouri

Thermal Insulation

If you have high energy bills, then your crawl space might be poorly insulated. To fix this, we can install thermal insulation. We use insulation panels that have tiny graphite particles permeate the foam insulation that reflects heat back into your crawl space.
Service Area

Service Area

Thrasher has locations throughout Nebraska, Iowa, Missouri, Kansas and Colorado.

Find your local Thrasher location



Access valuable resources to help keep your home healthy and your family safe.

Explore customer resources



At Thrasher, we pride ourselves on providing permanent solutions, and stand behind our work with industry-leading, fully transferable warranties and guarantees.

Learn more about our Warranties


Join our mailing list

Join our mailing list to receive the latest news and special offers.

Frequently Asked Questions

  • The purpose of encapsulation is to reduce the moisture in your crawl space, reducing your risk of mold. It also makes for cleaner air in your crawl space, which you share air with.

  • Price varies due to many factors. Please call us for the most accurate quote.

  • Yes. Crawl space encapsulation can make your home more efficient for heating and cooling, therefore reducing energy costs among other benefits.

  • An encapsulated crawl space provides protection against dangerous radon gas as it provides a barrier to prevent radon gas from accumulating in the crawl space.

  • No. Concrete is porous, therefore it allows moisture to travel through. Crawl space encapsulation instead can reduce radon levels and prevent moisture damage.

  • Yes. Products like our crawl space dehumidifier and ventilation fan will ensure that your home has clean, dry air, and help protect your crawl space from mold and other damage.

See more FAQs

Get a Free Estimate

Give us a call at 1-844-948-3306 or complete this form and we'll contact you shortly to schedule a Free Inspection, and you'll get a no-obligation written quote during our initial visit.
1 2 3