Cost Data · Updated June 2026

Spray Foam Insulation Cost in 2026

Aggregated price ranges across 5 U.S. cities, normalized to per project. National average for a typical project: $4,799–$9,106.

MethodologyCost by cityWhat drives costEmbed this dataCite this page

National price range by project size

Low–mid–high cost in USD per project.

Single areaCrawlspace or small attic

$1,586–$3,505

Average homeAttic + rim joists

$3,965–$7,010

Whole home / new buildWalls + attic, closed-cell

$7,930–$14,020

Spray Foam Insulation cost by city

Typical mid-tier project price range. Click a city for full local context, factors, and provider availability.

City	State	Small	Medium	Large	Local page
Asheville	NC	$2,182–$5,145	$5,455–$10,290	$10,910–$20,580	Asheville →
Charlotte	NC	$1,880–$4,940	$4,700–$9,880	$9,400–$19,760	Charlotte →
Greensboro	NC	$1,556–$3,670	$3,890–$7,340	$7,780–$14,680	Greensboro →
Raleigh	NC	$1,796–$4,750	$4,490–$9,500	$8,980–$19,000	Raleigh →
Wilmington	NC	$2,184–$4,260	$5,460–$8,520	$10,920–$17,040	Wilmington →

What drives spray foam insulation cost up or down

•Square footage
•Open vs. closed-cell
•Area (attic/crawl/walls)
•Prep & removal

Methodology

Cost ranges on this page reflect typical pricing for spray foam insulation projects across the 5 U.S. metro markets where Hire Local Crew operates. Numbers are normalized to per project and represent the 25th–75th percentile of recent project quotes (the middle 50% of jobs).

Per-city variation (±12%) reflects local labor cost differences, materials availability, and permit complexity. Numbers exclude high-end custom work (top 10%) and extreme low-end DIY-adjacent jobs (bottom 10%) so the ranges are representative of typical homeowner experience.

For a precise estimate on your specific project, request a free quote from a local provider via the city pages linked above. Data updated quarterly.

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Cite this page

If you reference these figures in an article, use:

Hire Local Crew. (2026). Spray Foam Insulation Cost in 2026: Data Across 5 U.S. Cities. Retrieved from https://hirelocalcrew.com/data/spray-foam-insulation