Quick answer: Spray foam insulation in Decatur costs $1.00–$1.60 per board foot for open-cell and $1.60–$2.60 per board foot for closed-cell. Most homeowners pay $3,000–$8,500. Most jobs finish in one day. Final pricing depends on access, required thickness, and any removal of existing insulation.
We specialize in spray foam insulation for Decatur and DeKalb County homes. Our work starts with understanding how Decatur’s mixed-humid climate and older home structures impact energy efficiency and indoor comfort.
Why Decatur Homes Need Spray Foam
Decatur’s historic Craftsman bungalows and mid-century cottages often have older vented crawl spaces that pull in humid air from the ground. This is a common issue in Zone 3A, where hot summers and high humidity create a cooling-dominated environment. Spray foam, especially closed-cell, offers a durable air and vapor barrier that stops air leaks and controls indoor moisture levels. Open-cell foam is also effective for attic air sealing and insulation, but closed-cell is the better choice for crawl spaces where moisture is a concern.
Our Spray Foam Services in Decatur
Our service includes attic air sealing with open-cell foam, which is ideal for insulating and sealing gaps in the upper parts of homes. For crawl spaces, we recommend closed-cell foam for its moisture resistance and structural benefits. We also work with new construction in Decatur, helping builders achieve better energy performance from the start. Every project is tailored to the unique layout of your home, and we take into account factors like access, existing insulation, and the need for removal before installation.
What It Costs in Decatur
In Decatur, the cost of spray foam insulation varies based on the size and condition of the space being treated. For attic air sealing, open-cell foam typically ranges from $3,000 to $6,750. Closed-cell foam is more expensive but often the better choice in humid environments, and it can range from $4,500 to $8,500. Crawl space encapsulation with closed-cell foam costs between $2,400 and $5,400. Combined attic and crawl space projects in Decatur can range from $3,000 to $8,500. The final price depends on access, the thickness of foam needed, and whether old insulation must be removed first.
Serving Decatur and DeKalb County
We service all parts of Decatur, including Oakhurst, Winnona Park, and downtown. Our team works throughout DeKalb County, and we understand the unique challenges of local housing stock. From older homes with vented crawl spaces to newer builds, we provide solutions that are effective for Decatur’s hot summers and high humidity. Our work is grounded in practical, local experience, not generic advice from colder climates.
