Spray foam insulation quotes in North Carolina
We match homeowners in 2 North Carolina areas with up to three vetted local spray foam installers. Pick your area for local climate zone, R-value and rebate details, or request quotes now.
- Climate zones in our North Carolina areas: 3A (2021 IECC)
- State code: North Carolina Energy Conservation Code (2015 IECC base with amendments)
- Utility rebates we verified: 1 active program(s)
Our North Carolina service areas
| Area | County | 2021 IECC zone | ENERGY STAR attic target |
|---|---|---|---|
| Greensboro | Guilford County | 3A | R-49 |
| Winston-Salem | Forsyth County | 3A | R-49 |
Climate zones: PNNL-33270, Guide to Determining Climate Zone by County (IECC 2021). R-values: ENERGY STAR.
North Carolina energy code
North Carolina Energy Conservation Code (2015 IECC base with amendments), effective January 1, 2019. NAHB notes that 2023 legislation limits how quickly North Carolina can adopt a newer residential energy code.
Source: NAHB, "Residential Provisions of the IECC: State Adoption Status" (current as of May 2026).
Utility insulation programs in our North Carolina areas
Duke Energy Carolinas Smart $aver
Duke's Smart $aver program lists insulation and air-sealing rebates through participating contractors. We could not confirm the current Carolinas amounts on Duke's own pages, so ask the installer to show you the current offer.
Read on the program's own page October 16, 2026. Programs change; confirm before you sign.
North Carolina state Home Energy Rebates
Open (some programs) Energy Saver North Carolina
Electrification/appliance rebates (HEAR): "DEQ launched the Energy Saver NC on January 16, 2025."
Whole-home efficiency rebates (HOMES/HER): "DEQ launched the Energy Saver NC on January 16, 2025."
Max rebate (per official page): Homeowners Managing Efficiency Savings (HOMES): Offers eligible households up to $16,000 for home efficiency upgrades, such as air sealing or energy-efficient HVAC units.
Official source: NC DEQ. Status text compiled via referencesource.org, last checked by them August 25, 2026. Full North Carolina rebate page →
Cost
National published ranges (we don't publish local prices without local data):
| Example job (typical thickness) | Estimated installed range |
|---|---|
| 1,000 sq ft attic roofline, open cell (6") | $3,600–$9,600 |
| 1,000 sq ft attic roofline, closed cell (3") | $3,900–$9,300 |
| 1,500 sq ft walls, open cell (3.5") | $3,150–$8,400 |
| 1,500 sq ft walls, closed cell (2") | $3,900–$9,300 |
| 200 sq ft rim joists, closed cell (2") | $520–$1,240 |
Where the cost numbers come from
- Per-board-foot installed prices: open cell $0.60–$1.60, closed cell $1.30–$3.10. Source: Angi, "How Much Does Spray Foam Insulation Cost? [2026 Data]" (updated Sep 9, 2026).
- Per-square-foot installed prices: open cell $1.50–$3.50, closed cell $3.00–$5.00; many companies have job minimums of $1,000–$2,000+. Source: HomeGuide, "How Much Does Spray Foam Insulation Cost? (2026)" (Dec 1, 2025).
- Typical thickness defaults: Profoam spray foam price sheet (prices valid Aug 1, 2026): "2" avg in walls / 3" avg in roof lines" (closed cell), "3.5" avg in walls / 6" avg in roof lines" (open cell).
These are national published ranges, not local prices. We don't publish local prices until we have real local quotes.