Crawl Space Moisture Control

Crawl Space Encapsulation Company Serving Richmond, Williamsburg, Henrico & Nearby

Achieve a Healthier, More Sanitary Living Environment with Crawl Space Moisture Control

Why is this a problem?

  • Mold and mildew growth: A damp environment is very unhealthy and destructive. Mold thrives and reproduces by producing airborne spores by the millions, some of which are toxic.
  • High humidity: High humidity is absorbed into the wood structure and moves upward into the hardwood floors which causes the floors to "cup". Cupping is when the hardwood floor absorbs so much moisture the wood swells and pushes upward at its edges.
  • Structural damage: Rot and decay occur in damp environments causing structural damage.
  • Higher energy costs: Heating and cooling costs are higher in a home with a vented dirt crawl space.
  • Insects and critters: Insects and critters of all kinds love damp environments and wet materials.

Recent Testimonials

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“I just want to let you and your team know how much I appreciate your diligence in helping me find out the...”

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Terry F. of Henrico, VA

“The whole process was a very positive experience and I would recommend your company to anyone.”

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Richard G. of Williamsburg, VA

“Before I called you, it was mess in my crawl space. John was not afraid to go in. And now I could sleep in...”

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George C. of Newport News, VA

“I am grateful to Brian, Adel and the rest of the team - including the office staff, and appreciate a job well...”

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Rodney A. of Hampton, VA

“The experience was good all the way around.”

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John K. of Montpelier, VA

“Thank you for the promptness and quality of your work.”

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Kenneth R. of Midlothian, VA

“Exceptional workers and workmanship.”

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Einar H. of Midlothian, VA

“Your first crew did an amazing job on the vapor barrier installation.”

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Einar H. of Midlothian, VA

“Matt was confident and knew what he was doing!”

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Justin of Ruther Glenn, VA

What's the solution?

CleanSpace® Authorized Dealer

The way to protect a home with a crawl space is to seal the crawl space with an encapsulation system. An Encapsulation Crawl Space System completely isolates your home from the earth and dramatically reduces the humidity level. In most cases, this has the effect of eliminating mold growth, rot, and critters from your crawl space, and making the whole house healthier.

Our encapsulation crawl space system installation is a 6 step process:

  1. Our trained installers will remove wood and organic materials from your crawl space floor. Rocks and uneven surfaces are leveled, depending on the crawl space conditions.
  2. The crawl space liner is carefully cut and installed. The workers will usually be working in their socks once the floor piece is laid out to keep the liner clean. That's how clean your crawl space will be!
  3. Small holes are drilled into the top of your crawl space walls and nylon fasteners are installed to permanently secure the liner to the walls.
  4. The top edge of the liner is sealed to the walls with a polyurethane sealant. All seams are sealed with special 4'' wide sealing tape and/or sealant made for the liner. It is also sealed around other objects such as pipes, columns, and piers with any combination of sealants or concrete.
  5. The liner is completely sealed over the floor and walls to fully isolate your home environment from the earth. The liner is a heavy 20 mil thick material similar to a pool liner. It is manufactured in 7 layers - a blend of high-density polyethylene, low-density polyethylene, and two layers of polyester cord reinforcement. The bright white finished side really brightens a crawl space and allows you to easily see that your crawl space is free of mold, insects, and dirt.
  6. Finally, the vents will be closed up to save you money on your energy bills.

Before and After
  • CleanSpace Encapsulation System in Williamsburg, VA Crawl Space
    CleanSpace Encapsulation System in Williamsburg, VA Crawl Space

    This crawl space had evidence of water infiltration, mold, and a deteriorating vapor barrier. After removing all debris and treating the mold, we installed the CleanSpace Encapsulation System. CleanSpace, a 20-mil vapor barrier that is poly-string reinforced and contains an antimicrobial called UltraFresh is installed. It is laid on the crawl space floor and fastened to the walls six inches above the outside grade (to direct any moisture entering through the cinderblock down to the earth) and wrapped around piers. All seams are overlapped and sealed to isolate the crawl space off from the earth's moisture. 

  • Crawl Space Insulation & Vapor Barrier in Louisa, VA
    Crawl Space Insulation & Vapor Barrier in Louisa, VA

    Moisture and high humidity in this crawl space resulted in mold and mildew growth and damage to the insulation. The homeowner wanted to encapsulate the space, so our team set to work cleaning out the crawl space, air sealing vents, the rim band, sill plate, and any other openings through the foundation wall to the outside. They treated the microbial growth with an antimicrobial, installed a new CleanSpace Vapor Barrier, applied Foam Board insulation to the foundation walls, and installed a dehumidifier to regulate the relative humidity. 

  • Dehumidifying a Louisa, VA Crawl Space
    Dehumidifying a Louisa, VA Crawl Space

    After sealing and insulating this crawl space, we need to make sure we control the relative humidity. This is achieved by installing a dehumidifier with a hygrometer. The dehumidifier will be set to cut to on when the humidity reaches about 55% our goal is to prevent it from getting high enough that microbial growth can occur in the crawl space. We don't want the space to be too dry either because that can be damaging to the home's structure as well. A hygrometer is provided to the homeowner that allows them to monitor the temperature and relative humidity in the crawl space from inside their home. 

  • Sealing Up a Louisa, VA Crawl Space Floors
    Sealing Up a Louisa, VA Crawl Space Floors

    These homeowners in Louisa wanted to encapsulate the crawl space on their newly constructed home. The exposed dirt flooring of the crawl space would continue to allow the earth's moisture to rise into the crawl space unless covered and sealed. The moisture rising from the earth can increase the relative humidity of the crawl space, which can then lead to mold growth, condensation, and moisture damage to certain materials. We placed a 10-mil CleanSpace vapor barrier over the dirt flooring to help protect the crawl space from the rising moisture. This liner gets wrapped around all pillars and is mechanically sealed to the foundation walls six to eight inches above outside grade. Any seams and gaps are sealed with a unique vinyl tape. The vapor barrier will help to prevent moisture from elevating the relative humidity, and it gives the crawl space a brighter and cleaner aesthetic.

  • Mold Remediation in Mineral, VA Crawl Space
    Mold Remediation in Mineral, VA Crawl Space

    Before encapsulating this crawl space, we treated the joists with an antimicrobial called Shockwave. This product is a hospital-grade antimicrobial designed to kill the mold and mildew growth. 

The finished liner is tough enough for you to crawl on it and use your crawl space for storage. Servicemen can crawl on it without worrying about putting holes or tears in the liner. It completely stops moisture penetration. The result is an attractive, bright, tough, impervious liner and a healthy home above it.

The Drying Co./ThermalTec proudly services the areas of Midlothian, Williamsburg, Henrico, Richmond, Glen Allen, Mechanicsville, Chester and nearby.

our service area

We serve the following areas

Our Locations:

The Drying Co./ThermalTec
3005 John Deere Rd
Toano, VA 23168

The Drying Co./ThermalTec
Mailing Address
P.O. Box 637
Toano, VA 23168
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