Crawl Space Repair

Crawl space encapsulation seals the crawl space from ground moisture, outside air, and humidity using a durable vapor barrier such as CleanSpace®. Sealing the floor, walls, vents, and other openings helps create a cleaner, drier environment and protects the home from moisture related problems.

Common signs of excess crawl space moisture include musty odors, high humidity, condensation, mold growth, wood rot, damp insulation, and standing water. You may also notice symptoms inside the home, such as uneven floors, increased humidity, or persistent musty smells.

Water can enter a crawl space because of groundwater, heavy rain, poor drainage around the foundation, plumbing leaks, or moisture entering through exposed soil and foundation walls. Depending on the source, crawl space drainage, a sump pump, encapsulation, and dehumidification can work together to keep the space dry.

Mold thrives where moisture and organic materials like wood are present, making crawl spaces an ideal environment. Encapsulation and dehumidification are the most effective ways to eliminate mold and the odors that come with it.

Our CleanSpace® vapor barrier seals out ground and wall moisture, while a SaniDry™ dehumidifier such as the Sedona removes lingering humidity. Together, these solutions create a dry, controlled crawl space that mold can’t survive in.

The answer is, you don’t need to. The idea that a crawl space needs to be “aired out” to prevent moisture and mold is a common misconception. The only effective way to protect your crawl space from ambient moisture and debris is to fully encapsulate it with a system like our CleanSpace® vapor barrier.

In the past, crawl space vents were believed to improve airflow and keep crawl spaces dry. Over time, however, it became clear that vented crawl spaces often lead to moisture problems and the issues that come with them, including mold, wood rot, and pest intrusion.

Airflow also allows water, debris, insects, and rodents to enter, leaving the crawl space and the rest of the home unprotected. That’s why proper crawl space encapsulation includes sealing vents with airtight covers to block outside moisture and contaminants.

Sagging or sloping floors are often a sign of an underlying problem in your home. If you have a crawl space, excess moisture is frequently the cause. Over time, moisture can weaken the beams and floor joists beneath your home, leading to sinking or uneven floors.

Encapsulating the crawl space with a waterproof, vapor-tight CleanSpace® liner helps control moisture, while our SmartJack® support system reinforces and re-stabilizes weakened beams. Together, these solutions restore floor stability and protect your home for the long term.

If your floors feel cold in the winter, your crawl space may be the reason. Cold outside air can enter the crawl space and chill the floors above, making your home uncomfortable and more expensive to heat.

Proper crawl space insulation addresses three key areas: the floor, walls, and rim joists. TerraBlock® floor insulation helps block cold temperatures and ground moisture, while SilverGlo® wall insulation reflects heat back into the crawl space. Sealing the rim joists with spray foam further prevents cold air from entering. Together, these solutions improve comfort and increase energy efficiency throughout your home.