Find the best crawl space repair near you

A crawl space is a narrow area between the ground and the first floor of a home, usually 1 to 3 feet high. It provides access to plumbing, wiring, and HVAC systems, and can also help with ventilation and moisture control when properly maintained.

Encapsulation involves sealing the crawl space with a vapor barrier on the floor and walls, sealing vents, and often adding a dehumidifier. This process controls moisture, improves air quality, and boosts energy efficiency. It’s best done by professionals for long-term effectiveness.

Crawl space encapsulation typically costs between $3,000 and $8,000, depending on size, condition, and materials used. Complex jobs with mold removal, drainage, or insulation can increase the price. A professional inspection can give you an accurate estimate.

To insulate a crawl space, install rigid foam or spray foam insulation on the walls and floor. If the crawl space is ventilated, insulate the subfloor instead. Always pair insulation with moisture control measures like vapor barriers or encapsulation to prevent mold and energy loss.

Crawl space encapsulation is the process of sealing the space with a heavy-duty vapor barrier, closing vents, and often adding insulation and a dehumidifier. It protects your home from moisture, mold, pests, and energy loss, creating a clean, dry, and more energy-efficient environment.

To remove mold from a crawl space, first fix moisture issues, then scrub visible mold with antimicrobial cleaner or hire a mold remediation professional. Always wear protective gear. Prevent future mold by installing a vapor barrier, improving drainage, and ensuring proper ventilation or encapsulation.

Close crawl space vents when outdoor temperatures drop below 40°F (4°C) to prevent freezing pipes and heat loss. In warm, humid climates, vents may be sealed year-round to reduce moisture. Encapsulating the space is often a better long-term solution than seasonal vent control.

To prevent pipes from freezing, insulate the pipes and crawl space walls, seal any drafts, and consider adding a space heater or heat tape on pipes in extreme cold. Encapsulating and insulating the crawl space is the most effective long-term solution for protecting plumbing.