Spray Foam Insulation in Wilmington Island, GA

Spray foam insulation on Wilmington Island deals with marsh air and low ground. The island lies east of Savannah between Thunderbolt and Tybee Island, sits about 10 feet above sea level, and nearly 14% of the census area is water. It is a large suburban community, with 15,129 residents and 6,851 housing units at the 2020 census.

Homes from the 1970s on

Wilmington Island first appeared as a census-designated place in the 1970 census and has grown into a large suburb since. Homes from the 1970s and 1980s often have settled attic insulation and unsealed ductwork, while newer houses have the familiar bonus room and attic duct issues.

Marsh-side crawl spaces

Houses near the marsh face damp air and, in some spots, flood zones. We check crawl spaces for water and decide between sealing the space with a liner and dehumidifier or insulating the floor with closed-cell foam, which FEMA rates acceptable for flood-prone areas. Homes in flood zones may need to keep flood vents open.

Attic upgrades

Sealing the attic floor and building insulation up toward R-49, as the Department of Energy suggests for existing homes, is usually the first upgrade. If the HVAC system sits in the attic, we price roof deck foam next to it.

Owners who stay

The median age on the island is 45.1, and 21.1% of residents are 65 or older. Many have lived in their homes for years and want lower bills and steadier temperatures without guesswork. Each quote lists material, depth and price so you know exactly what you are buying. Get a free estimate

Duct and attic checks

In island homes from the 1970s and 1980s, we often find flex duct sagging across the attic floor, disconnected joints and attic insulation that has been crushed by foot traffic. Sealing and supporting ducts, then building insulation back up, often makes more difference than any single product.

Cost ranges

HomeGuide puts crawl space encapsulation at about $3,000 to $15,000 and a typical attic insulation job at about $1,000 to $2,700. Island access and marsh-side crawl spaces can add time. After the visit, your written estimate is the price.