Spray foam insulation quotes in Tennessee
We match homeowners in 6 Tennessee 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 Tennessee areas: 3A, 4A (2021 IECC)
- State code: 2018 IECC with Tennessee amendments (several 2009 IECC sections substituted)
- Utility rebates we verified: 1 active program(s)
Our Tennessee service areas
| Area | County | 2021 IECC zone | ENERGY STAR attic target |
|---|---|---|---|
| Brentwood | Williamson County | 3A | R-49 |
| Franklin | Williamson County | 3A | R-49 |
| Mount Juliet | Wilson County | 4A | R-60 |
| Murfreesboro | Rutherford County | 3A | R-49 |
| Nashville | Davidson County | 3A | R-49 |
| Smyrna | Rutherford County | 3A | R-49 |
Climate zones: PNNL-33270, Guide to Determining Climate Zone by County (IECC 2021). R-values: ENERGY STAR.
Tennessee energy code
2018 IECC with Tennessee amendments (several 2009 IECC sections substituted), effective July 16, 2020. Tennessee amendments reduce ceiling insulation (R-30 in zone 3, R-38 in zone 4) and make duct testing optional.
Source: NAHB, "Residential Provisions of the IECC: State Adoption Status" (current as of May 2026).
Utility insulation programs in our Tennessee areas
TVA EnergyRight (through participating local power companies)
Rebates of up to $300 each for attic insulation, wall insulation, envelope air sealing, and duct sealing/insulation when a TVA Quality Contractor Network member does the work. Eligibility depends on whether your local power company participates.
Read on the program's own page October 16, 2026. Programs change; confirm before you sign.
Tennessee state Home Energy Rebates
Not yet launched Home Energy Rebate Programs
Electrification/appliance rebates (HEAR): "Funding for the Tennessee IRA Home Energy Rebate Programs is not yet available."
Whole-home efficiency rebates (HOMES/HER): "before Tennessee can launch its programs and make the rebates available, it must receive full approval and an executed agreement with U.S. DOE, and then Tennessee must complete the contracting process with our implementer, the Tennessee Valley Authority"
Max rebate (per official page): There is a maximum rebate of $14,000 per building, with percentage caps varying by income and building type.
Official source: TDEC OEP. Status text compiled via referencesource.org, last checked by them August 31, 2026. Full Tennessee 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.