Spray Foam Insulation cost: Florence vs Rock Hill (2026)
The two metros aren't quite in sync on spray foam insulation: Florence sits 1% below Rock Hill, or roughly $3,600 versus $3,650 — about $50 apart.
Florence SC
Lower costTypically around $3,600
Rock Hill SC
Typically around $3,650
Florence vs Rock Hill: full breakdown
| Factor | Florence | Rock Hill |
|---|---|---|
| Typical 2026 cost | $3,600 | $3,650 |
| Estimated range | $1,450–$5,700 | $1,450–$5,800 |
| Labor index (vs US) | ×0.93 | ×0.95 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | None | None |
| Labor share | $2,000 | $2,000 |
| Materials/equipment | $1,600 | $1,650 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Is the gap worth worrying about?
1% is within noise for spray foam insulation — contractor selection and timing move the price more than which of these two metros you're in.
Spray foam insulation by type: Florence vs Rock Hill
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 | Florence | Rock Hill |
|---|---|---|
| Open-cell | $1,450–$4,300 | $1,450–$4,350 |
| Closed-cell | $2,400–$6,650 | $2,400–$6,800 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Spray foam insulation by area: Florence vs Rock Hill
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 | Florence | Rock Hill |
|---|---|---|
| 500 sq ft | $850–$2,300 | $850–$2,350 |
| 1,000 sq ft | $1,450–$3,800 | $1,450–$3,900 |
| 1,500 sq ft | $2,100–$5,250 | $2,150–$5,350 |
| 2,000+ sq ft | $2,650–$6,200 | $2,700–$6,300 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Cheapest time for spray foam insulation in either city
The fall insulation rush drives prices up because everyone's thinking about the coming winter at once. Book in spring or summer instead, when demand is lower and rebate funds haven't been claimed yet.
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 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.
The R-value case
The DOE publishes a target R-value for every climate zone, and there's a reason to reach it: stopping short shaves a little off install day but forfeits years of lower energy bills and steadier indoor temperatures. Under-insulating is the one shortcut here that never actually pays.
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.
Air-seal before you insulate, hit the DOE-recommended R-value for your zone, and claim every rebate you're eligible for — insulation is a rare case where doing the full job is also the cheapest one, long-term.
Florence vs Rock Hill
Is spray foam insulation cheaper in Florence or Rock Hill?
Florence comes out ahead here, at roughly $3,600 for spray foam insulation compared with $3,650 in Rock Hill — a 1% ($50) gap as of 2026.
Why does spray foam insulation cost more in Rock Hill than Florence?
The main driver is local labor rates: Rock Hill's labor index is 0.95 versus 0.93 in Florence. Climate zone (hot vs hot) also shift the total.
How much is spray foam insulation in Florence, SC?
spray foam insulation in Florence runs $1,450–$5,700 as of 2026 — most jobs land near $3,600.
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 Florence and Rock Hill, 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?
Rarely. The $50 difference is real but one-time, and you can often close most of it in Rock Hill by buying in the off-season and getting tighter, apples-to-apples bids. Ongoing factors — energy prices, climate and home condition — matter more over the life of the system.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik