Spray Foam Insulation cost: Fort Collins vs Longmont (2026)
Fort Collins runs 1% lower than Longmont for spray foam insulation — expect around $3,950 in Fort Collins against $4,000 in Longmont, a difference of about $50.
Fort Collins CO
Lower costTypically around $3,950
Longmont CO
Typically around $4,000
Fort Collins vs Longmont: full breakdown
| Factor | Fort Collins | Longmont |
|---|---|---|
| Typical 2026 cost | $3,950 | $4,000 |
| Estimated range | $1,550–$6,300 | $1,600–$6,350 |
| Labor index (vs US) | ×0.99 | ×1 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,150 | $2,200 |
| Materials/equipment | $1,800 | $1,800 |
Treat these as 2026 localized estimates for spray foam insulation, not quotes from a contractor.
How much should this gap actually matter?
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: Fort Collins vs Longmont
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 | Fort Collins | Longmont |
|---|---|---|
| Open-cell | $1,550–$4,700 | $1,600–$4,750 |
| Closed-cell | $2,600–$7,350 | $2,650–$7,400 |
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: Fort Collins vs Longmont
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 | Fort Collins | Longmont |
|---|---|---|
| 500 sq ft | $950–$2,500 | $950–$2,550 |
| 1,000 sq ft | $1,550–$4,200 | $1,600–$4,250 |
| 1,500 sq ft | $2,300–$5,750 | $2,350–$5,850 |
| 2,000+ sq ft | $2,950–$6,800 | $2,950–$6,900 |
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
Because most homeowners wait for the fall pre-winter panic, that's when prices peak. Getting it done in spring or summer means less competition and, often, an untapped rebate budget.
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 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 has some of the best rebate math in home improvement — utility and state programs can cover a solid share (the federal 25C credits ended Dec 2025). Check DSIRE before you book and time it to a fresh rebate budget.
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.
Fort Collins vs Longmont
Is spray foam insulation cheaper in Fort Collins or Longmont?
Yes — Longmont costs more. Expect around $4,000 for spray foam insulation there against $3,950 in Fort Collins, about $50 (1%) apart in 2026.
Why does spray foam insulation cost more in Longmont than Fort Collins?
Longmont's higher labor index (1 vs 0.99 in Fort Collins) is the biggest factor, with the cold/cold climate split playing a smaller role.
How much is spray foam insulation in Fort Collins, CO?
Expect to pay $1,550 to $6,300 for spray foam insulation in Fort Collins in 2026, averaging around $3,950.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
It doesn't vary by location — Spring and summer is the discount window in both Fort Collins and Longmont (roughly 5–10% off), while the pre-winter fall rush tends to be the most expensive in either city.
Should I choose where to live based on spray foam insulation cost?
That would be a stretch. $50 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Longmont 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