Average Hourly Cost: Spray foam insulation is generally priced by the square foot and the average cost is around $2.00-$2.75 per square foot. When hiring an insulation contractor, the average hourly cost is usually between $50 and $70 per hour, depending on the job complexity, the type of foam being used, and the service provider.

Cost Breakdown: Spray foam insulation costs include labor, materials, and any additional accessories that may be needed for the job. Depending on the type of foam being used, the cost of the materials can range from $0.35 to $2.00 per square foot. Labor costs will depend on the complexity of the job and the service provider, and can range from $0.50 to $4.00 per square foot. Accessories such as sealants, air barriers, and flashing can add additional costs of up to $1.00 per square foot.

Factors that Affect Cost: Several factors can affect the overall cost of spray foam insulation. The type of foam being used, the quality of the materials, the complexity of the job, and the service provider can all have an impact on the cost. The location of the job can also affect the cost, as the cost of materials and labor can vary depending on the region.