Spray Foam Insulation cost: Kingsport vs Memphis (2026)
The two metros aren't quite in sync on spray foam insulation: Kingsport sits 3% below Memphis, or roughly $3,500 versus $3,600 — about $100 apart.
Kingsport TN
Lower costTypically around $3,500
Memphis TN
Typically around $3,600
Kingsport vs Memphis: full breakdown
| Factor | Kingsport | Memphis |
|---|---|---|
| Typical 2026 cost | $3,500 | $3,600 |
| Estimated range | $1,400–$5,550 | $1,450–$5,750 |
| Labor index (vs US) | ×0.92 | ×0.96 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $1,950 | $2,000 |
| Materials/equipment | $1,550 | $1,600 |
Treat these as 2026 localized estimates for spray foam insulation, not quotes from a contractor.
Is the price difference a dealbreaker?
At 3%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for spray foam insulation — focus on the contractor, not the city.
Spray foam insulation by type: Kingsport vs Memphis
Each spray foam insulation option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Kingsport | Memphis |
|---|---|---|
| Open-cell | $1,400–$4,150 | $1,450–$4,350 |
| Closed-cell | $2,300–$6,450 | $2,400–$6,750 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Spray foam insulation by area: Kingsport vs Memphis
Spray foam is priced by board foot (1 sq ft at 1 inch thick), which works out to about $1.50–$5 per sq ft of surface installed depending on foam type and thickness. Closed-cell costs more but adds twice the R-value per inch.
| Size | Kingsport | Memphis |
|---|---|---|
| 500 sq ft | $850–$2,200 | $850–$2,300 |
| 1,000 sq ft | $1,400–$3,700 | $1,450–$3,850 |
| 1,500 sq ft | $2,050–$5,100 | $2,100–$5,300 |
| 2,000+ sq ft | $2,600–$6,000 | $2,700–$6,250 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
What insulation pros earn in each metro
Labor is about 55% of a spray foam insulation bill, so local wages drive most of the gap. These are real metro hourly wages for skilled installers (BLS OEWS), not estimates.
No BLS metro wage series for Kingsport; we use Tennessee regional price parity instead.
Memphis metro · about 7% below the US average installer wage.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for spray foam insulation in either city
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.
How much insulation is worth paying for?
Where an insulation budget lands depends less on square footage than on three calls — the R-value you target, whether air-sealing rides along, and which material fills the cavity.
The rebate case
Insulation carries some of the strongest incentive money in remodeling, with utility and state rebates covering a real portion of the cost since the federal 25C credit expired at the end of 2025. Look up what applies on DSIRE, then schedule the work while rebate funds are still unclaimed for the year.
The R-value case
Aim for the R-value the DOE assigns your zone, not a round number that sounds close enough. Every point you fall short is comfort you don't feel and utility savings you never bank — savings that would have covered the extra material several times over.
The air-sealing case
Skip air-sealing and you're insulating around the very holes letting conditioned air leak out. Caulk, foam and weatherstripping are inexpensive and often return more felt comfort than a thicker blanket of insulation ever would — insist the crew handles the leaks before they bury them.
Of every home upgrade, insulation rewards doing it right the most: air-seal first, meet the DOE R-value for your climate zone, and use the rebates on the table. Cutting the scope here just delays the payback.
Kingsport vs Memphis
Is spray foam insulation cheaper in Kingsport or Memphis?
Kingsport wins on price: spray foam insulation runs about $3,500 there versus $3,600 in Memphis, a gap of roughly $100 (3%) as of 2026.
Why does spray foam insulation cost more in Memphis than Kingsport?
Memphis's higher labor index (0.96 vs 0.92 in Kingsport) is the biggest factor, with the mixed/mixed climate split playing a smaller role.
How much is spray foam insulation in Kingsport, TN?
Kingsport homeowners can expect $1,400 to $5,550 for spray foam insulation in 2026, with $3,500 the typical number.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
Timing doesn't change by city here — Spring and summer is the cheapest window in both Kingsport and Memphis, saving roughly 5–10%. Avoid the pre-winter fall rush in either location, when emergency replacements push prices up.
Should I choose where to live based on spray foam insulation cost?
That would be a stretch. $100 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Memphis can close a good chunk of it. What matters more long-term is energy costs, climate and the condition of the home.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik