Why Montgomery Homes Need Crawl Space Encapsulation
Central Alabama averages over 50 inches of rainfall per year, and summer humidity regularly exceeds 90%. An unencapsulated crawl space acts like a sponge — absorbing ground moisture and outdoor humidity. This moisture condenses on floor joists and subfloor, accelerating wood rot and mold growth. Over time, moisture damage compromises structural integrity and creates persistent air quality issues throughout the home.
What Our Encapsulation System Includes
A complete Montgomery Foundation Repair Co encapsulation installation includes: a 20-mil reinforced vapor barrier sealed across the entire crawl space floor and up the walls, foam-sealed foundation vents (sealed in conditioned crawl spaces), drainage matting under the barrier for ground moisture management, sealing of all penetrations, and a properly sized dehumidifier to maintain indoor humidity below 55% year-round. We also inspect and address any existing moisture damage before sealing.
Encapsulation vs. Vapor Barrier — What's the Difference?
A standard vapor barrier is a thin plastic sheet that limits (but doesn't eliminate) ground moisture transmission. Encapsulation is a complete system — thick reinforced liner, vent sealing, and active humidity control — that converts the crawl space into a semi-conditioned space. Encapsulation is significantly more effective in Alabama's climate and qualifies for energy efficiency incentives in some cases.
Crawl Space Encapsulation Cost in Montgomery
A basic vapor barrier installation on a standard-sized crawl space runs $2,500–$4,000. A full encapsulation system with liner, vent sealing, and dehumidifier runs $5,000–$10,000. Crawl spaces with existing damage — wood rot, mold remediation needed, or structural repair — run $8,000–$15,000. We provide itemized written estimates after the inspection.