Average Hourly Cost: The average hourly cost for radiant floor insulation installation by an insulation contractor typically ranges between $50 and $100 per hour, as of 2023.

Cost Breakdown: The total cost of radiant floor insulation installation can include labor, materials, and applicable taxes. Labor costs account for the majority of the total cost, typically ranging from $2 to $4 per square foot. Materials, such as insulation boards, vapor barriers, and adhesives, typically cost between $0.50 and $2 per square foot. Taxes may also apply, depending on where the installation is taking place.

Factors Affecting Cost: Several factors can affect the cost of radiant floor insulation installation, such as the type and quality of the accessories used, the complexity of the job, and the location and service provider. Higher quality accessories, such as foam boards or reflective insulation, will cost more than lower quality materials, such as fiberglass insulation. The complexity of the job can also affect the cost, as more intricate jobs may require more time and materials. Finally, the location and service provider can also affect the cost, as prices may vary depending on the area and the contractor's experience level.