Quick answer: Spray foam insulation in Kennesaw 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 seal and insulate homes in Kennesaw and surrounding areas. With the mix of 1990s–2000s subdivisions and newer builds in Cobb County, many homes are still struggling with attic heat gain and crawl space moisture. Here's what we see and how we fix it.
Why Kennesaw Homes Need Spray Foam
Kennesaw sits in IECC Climate Zone 3A, a mixed-humid region where cooling load dominates over heating. Most homes here—whether slab or crawl space—were built with outdated insulation methods that don't account for today's energy demands or Georgia's humidity. Attic radiant heat drives up AC usage, while crawl spaces become breeding grounds for mold and rot due to poor vapor control. Spray foam—especially closed-cell—stops air and moisture leaks in one step, which is critical in our climate.
Our Spray Foam Services in Kennesaw
We focus on the problem areas: attics, crawl spaces, and new construction. For attic air sealing, we use open-cell foam to seal ducts and gaps without trapping moisture. In crawl spaces, we encapsulate with closed-cell foam to lock out humidity and prevent wood decay. We also install closed-cell foam in new builds to meet code and future-proof the structure. Our work is tailored to Kennesaw's needs, not a one-size-fits-all approach.
What It Costs in Kennesaw
Spray foam costs vary depending on access, thickness, and whether we're removing old insulation. For attic air sealing, open-cell foam typically ranges from $3,000 to $6,750, while closed-cell is more expensive but more effective in Zone 3A. Crawl space encapsulation with closed-cell foam averages $2,400 to $5,400. If you're doing both attic and crawl space, combined costs usually range from $3,000 to $8,500. Georgia Power offers rebates for energy-efficient upgrades, but these change annually.
Serving Kennesaw and Cobb County
We serve Kennesaw and the broader Cobb County area, including Kennesaw Mountain, the KSU campus, and homes near Acworth. From the older subdivisions to the newer neighborhoods, we understand the local construction and climate. Our team is based in the area, so we're familiar with the challenges of slab homes, crawl spaces, and attic heat buildup. We show up on time and work with your schedule to get the job done right.
