Basic
$2.13 – $4.69 per sq ft
Closed-cell spray foam about 2 in. thick (around R-13), sprayed in one pass to an even layer across the surface

Closed-cell spray foam applied 2-3 inches thick in walls, rim joists, crawl spaces or roof deck, per sq ft of surface treated.
Closed Cell Spray Insulation in Baltimore, Maryland typically costs $2.51 to $5.51 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 Baltimore are in line with the national average for closed cell spray insulation.
National average: $2.50 – $5.50 per sq ft
$2.13 – $4.69 per sq ft
Closed-cell spray foam about 2 in. thick (around R-13), sprayed in one pass to an even layer across the surface
$2.51 – $5.51 per sq ft
Closed-cell spray foam about 2.5 in. thick (around R-16), even coverage, rim joist and edge gaps sealed
$3.13 – $6.89 per sq ft
Closed-cell spray foam about 3 in. thick (around R-20) in two passes, seams and penetrations sealed, overspray trimmed in stud bays
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1.14 – $2.53 | sq ft |
| Labor | labor | $0.85 – $1.86 | sq ft |
| Supplies & Other | supplies | $0.31 – $0.67 | sq ft |
| Equipment & Disposal | equipment | $0.20 – $0.45 | sq ft |
Material costs in Baltimore run proportionally higher than labor, which may favor labor-intensive approaches.
Connect with local closed cell spray insulation contractors in Baltimore for personalized quotes based on your specific project.