How Much Does Spray Foam Insulation Cost?

Complete pricing guide for closed-cell and open-cell spray foam insulation, including installation costs, material prices, and long-term savings for Dallas/Fort Worth homes.

Spray Foam Cost Overview

$2.00
per sq ft
Open-cell spray foam
$4.00
per sq ft
Closed-cell spray foam
$8,000-$15,000
average home
Complete house project

Superior Air Sealing

Blocks air leaks better than any other insulation type

Highest R-Value

R-6 to R-7 per inch - maximum thermal protection

Moisture Barrier

Prevents condensation and mold growth

Open-Cell vs Closed-Cell Spray Foam

Understanding the differences between spray foam types helps you choose the right solution for your home and budget.

Open-Cell Spray Foam

$2.00
per square foot

Technical Specifications

R-Value per inch: R-3.5
Density: 0.5 lbs/ft³
Air Permanence: Semi-permeable
Vapor Barrier: No

Advantages

  • More affordable option
  • Excellent sound dampening
  • Allows moisture to dry out
  • Softer, more flexible

Best For:

  • • Interior walls and attics
  • • Sound control applications
  • • Budget-conscious projects
  • • Areas needing breathability
Premium Choice

Closed-Cell Spray Foam

$4.00
per square foot

Technical Specifications

R-Value per inch: R-6.5
Density: 2+ lbs/ft³
Air Permeance: Impermeable
Vapor Barrier: Yes

Premium Advantages

  • Highest R-value per inch
  • Complete air and vapor barrier
  • Adds structural strength
  • Flood and moisture resistant

Best For:

  • • Exterior walls and rooflines
  • • Basements and crawl spaces
  • • Maximum energy efficiency
  • • Moisture-prone areas

Cost Comparison by Home Size

Home Size Square Footage Open-Cell Cost Closed-Cell Cost
Small Home 1,000 sq ft $3,500-$5,000 $6,000-$9,000
Medium Home 1,500 sq ft $5,250-$7,500 $9,000-$13,500
Large Home 2,000 sq ft $7,000-$10,000 $12,000-$18,000
Extra Large Home 2,500 sq ft $8,750-$12,500 $15,000-$22,500
*Prices include materials and installation. Final costs may vary based on home complexity and regional pricing.

What Affects Spray Foam Costs?

Several key factors influence the final price of your spray foam insulation project in the Dallas/Fort Worth area.

Key Cost Factors

Application Area & Accessibility

Location and ease of access significantly impact labor costs

Attic spaces: Standard rates
Crawl spaces: +15-25%
Rim joists: +20-30%
Basement walls: +10-20%

Thickness Requirements

Desired R-value determines foam thickness needed

Open-Cell
2" = R-7
4" = R-14
6" = R-21
Closed-Cell
2" = R-13
4" = R-26
6" = R-39

Project Complexity

Obstacles and preparation work affect pricing

  • Multiple rooms: +$500-$1,500
  • Electrical/plumbing work: +$200-$800
  • Surface preparation: +$300-$1,000

Geographic & Seasonal Factors

Location and timing impact material and labor costs

Dallas County: Base rate
Tarrant County: Similar pricing
Peak season (Summer): +10-15%
Off-season (Winter): Potential savings

Return on Investment

Energy Savings Breakdown

Annual Energy Savings: 25-50%
Average Home Savings: $400-$800/year
Payback Period: 8-15 years

Additional Benefits

  • Increases home value by 3-5%
  • Prevents moisture damage
  • Reduces noise transmission
  • Deters pests and rodents
25+ Years
Expected lifespan of spray foam

Spray Foam vs Other Insulation

Spray Foam
Superior performance
$3.50-$9.00/sq ft
Premium price
Blown-in Cellulose
Good performance
$2.00-$4.00/sq ft
Mid-range
Fiberglass Batts
Basic performance
$1.50-$3.50/sq ft
Budget option

💡 While spray foam has higher upfront costs, its superior air sealing and R-value deliver better long-term savings than traditional insulation.

Spray Foam Insulation FAQ

Get answers to the most common questions about spray foam insulation costs and installation.

Why is spray foam insulation more expensive than other types?

Should I choose open-cell or closed-cell spray foam for my home?

How much can I save on energy bills with spray foam insulation?

Can spray foam insulation be installed in existing homes?

Is spray foam insulation worth the higher cost?

How long does spray foam installation take and what's the process?

Ready for Premium Insulation?

Get a detailed estimate for spray foam insulation tailored to your home's specific needs and budget.