Insulate your crawl space without trapping moisture
Old fiberglass batts sagging between the floor joists are one of the most common problems we find in DMV crawl spaces. Once they absorb moisture, they stop insulating and start holding water against the subfloor. Modern crawl space insulation moves to the foundation walls and uses materials that do not absorb ground moisture.
Common problems we solve
- Sagging, wet, or moldy fiberglass batts between the floor joists
- Cold floors above the crawl space in winter
- No insulation at the rim joist, a major air-leak point
- Insulation strategy that ignores the moisture source underneath
Benefits of a properly designed solution
Moisture-resistant materials
Closed-cell foam and rigid board do not absorb and hold ground moisture the way old batts do.
Warmer floors, lower bills
Wall and rim joist insulation closes one of the biggest air-leak points in the house.
Works with encapsulation
Insulating the walls instead of the floor only makes sense once the crawl space is sealed against moisture.
No more sagging batts
Eliminates the maintenance cycle of replacing wet, sagging fiberglass every few years.
Our four-step process
- Inspect: Document moisture, drainage, structure, and site conditions.
- Explain: Review findings with photos and straightforward priorities.
- Install: Complete the agreed scope with careful home protection.
- Verify: Test components, clean the work area, and complete a walkthrough.