Basic
$0.91 – $4.08 per sq ft
R-30 fiberglass batts between floor joists pressed against the subfloor, wire supports at regular spacing
Insulate the underside of a floor over a crawl space or unheated area with batts, rigid board or spray foam between joists, supported in place.
Floor Insulation in Fresno, California typically costs $1.07 to $4.80 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Fresno are 8.0% higher than the national average for floor insulation.
National average: $1 – $4.50 per sq ft
$0.91 – $4.08 per sq ft
R-30 fiberglass batts between floor joists pressed against the subfloor, wire supports at regular spacing
$1.07 – $4.80 per sq ft
R-30 fiberglass batts pressed against the subfloor, held with wire supports, gaps at rim joists stuffed with insulation
$1.33 – $6.01 per sq ft
R-30 fiberglass batts pressed to the subfloor, wire supports at close spacing, rim joists insulated, batts cut tight around pipes and wiring
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $0.47 – $2.12 | sq ft |
| Labor | labor | $0.39 – $1.74 | sq ft |
| Supplies & Other | supplies | $0.13 – $0.57 | sq ft |
| Equipment & Disposal | equipment | $0.08 – $0.38 | sq ft |
Labor costs in Fresno run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local floor insulation contractors in Fresno for personalized quotes based on your specific project.