Crawl Space Insulation

Many Hawthorne homes built before 1980 have vented crawl spaces with little to no insulation between the floor joists, allowing cold ground air to chill floors, drive up heating costs, and introduce moisture into the home's framing. Best Hawthorne Attic Insulation provides comprehensive crawl space insulation solutions including fiberglass batt installation between floor joists, rigid foam insulation on crawl space walls, and vapor barrier installation on the ground surface to block ground moisture.

For homes with persistent moisture issues, we recommend a closed crawl space approach — sealing foundation vents, insulating the walls with rigid foam or spray foam, and installing a heavy-duty polyethylene vapor barrier on the ground. This conditioned crawl space method is increasingly recognized as superior to vented crawl spaces in California's coastal climate because it eliminates the humid outside air that causes wood rot, mold, and pest harborage beneath the home.

Our team works carefully in confined crawl space conditions, wearing full PPE and using proper lighting and safety protocols. We inspect for existing moisture damage, standing water, or pest activity before beginning work and will advise you on any remediation needed before insulation is installed. A properly insulated crawl space leads to warmer floors, reduced energy consumption, healthier air quality indoors, and longer life for your home's structural lumber and sub-flooring.