Spray Foam Insulation cost: Derry Village vs Nashua (2026)
In 2026, Derry Village and Nashua land on nearly identical spray foam insulation pricing — about $4,150 either way.
Derry Village NH
Typically around $4,150
Nashua NH
Typically around $4,150
Derry Village vs Nashua: full breakdown
| Factor | Derry Village | Nashua |
|---|---|---|
| Typical 2026 cost | $4,150 | $4,150 |
| Estimated range | $1,650–$6,650 | $1,650–$6,650 |
| Labor index (vs US) | ×1.04 | ×1.04 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,300 | $2,300 |
| Materials/equipment | $1,850 | $1,850 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Basically a tie — focus on the contractor
Neither metro has a cost edge on spray foam insulation — spend your decision-making energy on the contractor, not the location.
Spray foam insulation by type: Derry Village vs Nashua
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 | Derry Village | Nashua |
|---|---|---|
| Open-cell | $1,650–$5,000 | $1,650–$5,000 |
| Closed-cell | $2,750–$7,750 | $2,750–$7,750 |
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: Derry Village vs Nashua
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 | Derry Village | Nashua |
|---|---|---|
| 500 sq ft | $1,000–$2,650 | $1,000–$2,650 |
| 1,000 sq ft | $1,650–$4,450 | $1,650–$4,450 |
| 1,500 sq ft | $2,450–$6,100 | $2,450–$6,100 |
| 2,000+ sq ft | $3,100–$7,200 | $3,100–$7,200 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Cheapest time for spray foam insulation in either city
Everyone waits until fall to insulate, which is exactly why fall costs the most. Spring and summer are quieter for installers and often catch a fresh year's rebate budget before it runs dry.
How much insulation is worth paying for?
R-value, air-sealing and material decide both the price and the payback. Our editors on the trade-offs.
The R-value case
Insulate to the DOE recommendation for your climate zone — under-insulating to save money leaves comfort and energy savings on the table that would have paid the job back.
The air-sealing case
Insulation without air-sealing underperforms. Sealing leaks first is cheap and often delivers more comfort per dollar than thicker insulation alone — make sure it's in the scope.
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.
Derry Village vs Nashua
Is spray foam insulation cheaper in Derry Village or Nashua?
Practically identical — expect around $4,150 for spray foam insulation whichever city you're in.
Why does spray foam insulation cost more in Nashua than Derry Village?
Labor rates explain most of it — 1.04 in Nashua vs 1.04 in Derry Village. A cold climate versus cold accounts for the rest.
How much is spray foam insulation in Derry Village, NH?
spray foam insulation in Derry Village runs $1,650–$6,650 as of 2026 — most jobs land near $4,150.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
The best window is the same in both Derry Village and Nashua: Spring and summer, when demand drops and installers discount to keep crews busy — typically 5–10% off peak pricing. The most expensive time anywhere is an emergency replacement during the pre-winter fall rush.
Should I choose where to live based on spray foam insulation cost?
Not on this basis — Derry Village and Nashua cost about the same. Weigh contractor quality, scope, equipment tier and timing instead.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik