Spray Foam Insulation cost: Salt Lake City vs St. George (2026)
Spray foam insulation costs about the same in Salt Lake City and St. George in 2026 — roughly $3,900 in each.
Salt Lake City UT
Typically around $3,900
St. George UT
Typically around $3,900
Salt Lake City vs St. George: full breakdown
| Factor | Salt Lake City | St. George |
|---|---|---|
| Typical 2026 cost | $3,900 | $3,900 |
| Estimated range | $1,550–$6,250 | $1,550–$6,200 |
| Labor index (vs US) | ×0.98 | ×0.97 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,150 | $2,150 |
| Materials/equipment | $1,750 | $1,750 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
A wash — choose on quality, not city
This is a statistical tie on spray foam insulation cost, so let contractor reputation and project timing decide, not geography.
Spray foam insulation by type: Salt Lake City vs St. George
We localize each spray foam insulation type separately for both metros, applying the same labor, climate and permit adjustments each time, so you're comparing like for like.
| Type | Salt Lake City | St. George |
|---|---|---|
| Open-cell | $1,550–$4,700 | $1,550–$4,650 |
| Closed-cell | $2,600–$7,300 | $2,600–$7,200 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Spray foam insulation by area: Salt Lake City vs St. George
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 | Salt Lake City | St. George |
|---|---|---|
| 500 sq ft | $950–$2,500 | $950–$2,450 |
| 1,000 sq ft | $1,550–$4,150 | $1,550–$4,100 |
| 1,500 sq ft | $2,300–$5,750 | $2,250–$5,650 |
| 2,000+ sq ft | $2,900–$6,750 | $2,900–$6,700 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
What insulation pros earn in each metro
About 55% of a spray foam insulation bill goes to labor, so wage differences between these two metros matter more than almost anything else. These are real, government-sourced (BLS OEWS) installer wages, not estimates.
Salt Lake City-Murray metro · about 3% below the US average installer wage.
No BLS metro wage series for St. George; we use Utah regional price parity instead.
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
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?
Insulation is priced on more than thickness. Target R-value, the presence or absence of air-sealing, and the material itself each pull the number in a different direction, and each changes how fast the job pays for itself.
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 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
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.
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.
Salt Lake City vs St. George
Is spray foam insulation cheaper in Salt Lake City or St. George?
spray foam insulation costs about the same in both — roughly $3,900 in each city.
Why does spray foam insulation cost more in St. George than Salt Lake City?
It comes down to labor: St. George indexes at 0.97 against Salt Lake City's 0.98. The cold-vs-cold climate difference adds to the gap.
How much is spray foam insulation in Salt Lake City, UT?
spray foam insulation in Salt Lake City runs $1,550–$6,250 as of 2026 — most jobs land near $3,900.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
No, the seasonal pattern is the same in Salt Lake City and St. George: book during Spring and summer for about 5–10% in savings. The pre-winter fall rush is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on spray foam insulation cost?
Cost shouldn't be the deciding factor between Salt Lake City and St. George — they land at nearly the same price. Contractor reputation, scope, equipment tier and timing matter more.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik