Localized for 1,000+ U.S. cities — adjusted for local labor, climate & permits

Insulation · cost by city

Spray Foam Insulation cost (2026)

Spray foam insulation (open- or closed-cell) for high R-value and air sealing. Select your city for a localized number, adjusted for labor rates, climate and permits.

Comparing options?Attic Insulation
National average · 2026
$1,500 – $6,000

Most jobs land around $3,750 nationally — your city moves this.

$1,500typical $3,750$6,000
Typical range
$1,500–$6,000
Most affordable
El Paso, TX
$3,350
Most expensive
San Jose, CA
$4,600
Cities covered
1000+
By type

Spray Foam Insulation cost by type

National ranges by option. Localize any of these to your city below.

TypeNational 2026 range
Open-cell$1,500 – $4,500
Closed-cell$2,500 – $7,000
Trending

Popular spray foam insulation estimates

Homeowners search these cities most for this project — local 2026 pricing for each.

spray foam insulation guides & advice

All guides →
Insulation · Buying guideInsulation Types & R-Value: Spray Foam vs. Cellulose vs. Fiberglass by ClimateRead · 11 minPlanning · Decision guideRepair or Replace? A Decision Guide for HVAC, Roofs, and Water HeatersRead · 10 minPlanning · HiringHow to Compare Contractor Quotes (and Spot the Red Flags)Read · 13 min
By city

Where spray foam insulation costs the most & least

Localized 2026 estimates across major U.S. cities. Tap any city for the full local breakdown.

Most affordable

  1. 1El Paso, TX$1,350 – $5,300
  2. 2Plano, TX$1,350 – $5,350
  3. 3Albuquerque, NM$1,400 – $5,600
  4. 4Virginia Beach, VA$1,400 – $5,650
  5. 5Wichita, KS$1,400 – $5,650
  6. 6Tampa, FL$1,400 – $5,650

Most expensive

  1. 1San Jose, CA$1,850 – $7,350
  2. 2Yonkers, NY$1,800 – $7,150
  3. 3Aurora, IL$1,800 – $7,150
  4. 4Boston, MA$1,800 – $7,200
  5. 5Chicago, IL$1,800 – $7,150
  6. 6New York, NY$1,800 – $7,150

Spray Foam Insulation cost by state

Pick your state to see every city we cover — 1000+ cities across 51 states.

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Cost drivers

What affects the price

  • Open-cell vs closed-cell (R-value)
  • Area and thickness
  • Accessibility of the space
  • Old insulation removal
Save money

Ways to cut the cost

  • Open-cell costs less where a vapor barrier isn't critical
  • Foam the attic and rim joists for the biggest impact
  • Check energy-efficiency incentives
  • Combine with a home energy audit
Best time to buy

Cheapest time for spray foam insulation

Everyone insulates in fall before winter, so that's the busy, full-price season. Booking in spring or summer catches off-peak pricing — and utility rebate budgets are often freshest early in the year.

Best window
Spring and summer
Avoid
The pre-winter fall rush
Off-peak savings
5–10%
FAQ

Spray Foam Insulation cost questions

How much does spray foam insulation cost in 2026?

Nationally, spray foam insulation runs about $1,500–$6,000, with most homeowners paying around $3,750. Your city moves this based on local labor, climate and permits — El Paso, TX is among the lowest ($3,350) and San Jose, CA among the highest ($4,600).

What are the main types of spray foam insulation and how do they compare?

Open-cell ($1,500–$4,500); Closed-cell ($2,500–$7,000). Pick a city below to localize any of these to your area.

What affects the cost of spray foam insulation?

Open-cell vs closed-cell (R-value); Area and thickness; Accessibility of the space; Old insulation removal.

When is the cheapest time for spray foam insulation?

The best window is spring and summer, when demand drops and installers discount — typically 5–10% off peak pricing. Avoid the pre-winter fall rush.

BrowseAll 1000+ cities we cover