Spray Foam Insulation in Thunderbolt, GA

Spray foam insulation in Thunderbolt is shaped by the river. The town lies about five miles southeast of downtown Savannah along the western shore of the Wilmington River, part of the Intracoastal Waterway, and its docks have long served Georgia's shrimping fleet. Homes near the water face humid air and low ground for most of the year.

An older town

Thunderbolt was incorporated as Warsaw in 1856 and renamed Thunderbolt in 1921. It is small, about 1.6 square miles, with 1,316 housing units at the 2020 census. Residents skew older, with a median age of 43.5 and 21.4% aged 65 or over, and many houses have been in the same hands for decades with original insulation.

Crawl spaces and raised floors

Older Thunderbolt homes often sit over vented crawl spaces or on piers near the marsh. Damp air under the floor leads to sagging batts and musty rooms. Closed-cell foam under the floor works well where flood vents have to stay open, and FEMA rates it acceptable for flood-prone areas.

Attics

Sealing the ceiling and topping up attic insulation is usually the fastest way to make a Thunderbolt home more comfortable in summer. If the air handler is in the attic, roof deck foam is worth pricing too.

Older residents

For homeowners who would rather not have a big project, we break the work into stages, starting with what will make the most difference, and put each stage in writing.

Climate

Thunderbolt sits about 20 feet above sea level in Chatham County, Climate Zone 2A, where July highs average about 92°F. Get a free estimate

Under-floor work near the river

Under older Thunderbolt homes, we often find a mix of fallen batts, old ductwork and plumbing close to the ground. Wet or nested insulation comes out first. Ducts that hang below the joists stay outside the foam, so we note whether they need their own insulation or sealing. Where termite treatment is in place, we leave the pest company room to inspect.

What it costs

Closed-cell foam runs about $3.00 to $5.00 per square foot installed, per HomeGuide, and removal of old insulation about $1 to $2 per square foot, per HomeAdvisor. Small jobs often hit a minimum of $1,000 to $2,000. We put your actual price in writing.