Spray Foam Insulation cost: Duluth vs Maple Grove (2026)
Duluth runs 17% lower than Maple Grove for spray foam insulation — expect around $3,750 in Duluth against $4,400 in Maple Grove, a difference of about $650.
Duluth MN
Lower costTypically around $3,750
Maple Grove MN
Typically around $4,400
Duluth vs Maple Grove: full breakdown
| Factor | Duluth | Maple Grove |
|---|---|---|
| Typical 2026 cost | $3,750 | $4,400 |
| Estimated range | $1,500–$6,000 | $1,750–$7,000 |
| Labor index (vs US) | ×0.94 | ×1.1 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.06 | ×1.06 |
| Local permit | None | None |
| Labor share | $2,050 | $2,400 |
| Materials/equipment | $1,700 | $2,000 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Is the price difference a dealbreaker?
17% (about $650) is enough to notice on a spray foam insulation budget. Timing the purchase for the off-season and pushing for an apples-to-apples bid in Maple Grove can close much of that gap.
Spray foam insulation by type: Duluth vs Maple Grove
Below, each spray foam insulation option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Duluth | Maple Grove |
|---|---|---|
| Open-cell | $1,500–$4,500 | $1,750–$5,250 |
| Closed-cell | $2,500–$6,950 | $2,900–$8,150 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Spray foam insulation by area: Duluth vs Maple Grove
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 | Duluth | Maple Grove |
|---|---|---|
| 500 sq ft | $900–$2,400 | $1,050–$2,800 |
| 1,000 sq ft | $1,500–$4,000 | $1,750–$4,650 |
| 1,500 sq ft | $2,200–$5,500 | $2,550–$6,400 |
| 2,000+ sq ft | $2,800–$6,450 | $3,250–$7,550 |
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
With labor making up about 55% of a spray foam insulation job, wage differences between metros do most of the work here. These figures are real BLS OEWS installer wages, not modeled estimates.
No BLS metro wage series for Duluth; we use Minnesota regional price parity instead.
Minneapolis-St. Paul-Bloomington metro · about 18% above 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
Demand for insulation spikes every fall as winter approaches, pushing prices with it. Spring and summer avoid that crowd, and utility rebate pools are frequently still fresh that early in the year.
How much insulation is worth paying for?
Insulation is one of the few home upgrades where spending more can genuinely pay for itself. Our editors on the choices that decide both cost and payback.
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.
Hit the DOE R-value for your zone, air-seal first, and stack the rebates. Insulation is one of the few upgrades where doing it fully is also the cheapest path to payback.
Duluth vs Maple Grove
Is spray foam insulation cheaper in Duluth or Maple Grove?
In 2026, spray foam insulation is cheaper in Duluth at about $3,750, versus $4,400 in Maple Grove — a difference of about $650 (17%).
Why does spray foam insulation cost more in Maple Grove than Duluth?
Maple Grove's higher labor index (1.1 vs 0.94 in Duluth) is the biggest factor, with the cold/cold climate split playing a smaller role.
How much is spray foam insulation in Duluth, MN?
In Duluth, spray foam insulation typically runs $1,500–$6,000 in 2026, with most homeowners paying around $3,750.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
The best window is the same in both Duluth and Maple Grove: 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?
Probably not. Yes, $650 is a real gap, but it's a one-time cost you can partly offset in Maple Grove with off-season timing and tighter bids. Long-term factors like energy prices and home condition matter more than this one number.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik