Working in tight spaces is what Sunlight Contractors does when working on moisture damage remediation. Our team goes into your crawl space and checks your sub floor to see what needs to be done to stop moisture damage. Closed cell spray foam seals the sub floor and prevents further moisture damage. It also seals out unwanted air flow coming into your house through the floor cracks. Sealing will prevent termite damage which goes hand in hand with moisture in sub floors.