Spray Foam Insulation cost: Redmond vs Spokane (2026)
Budget-wise, spray foam insulation in Redmond ($4,400) runs 16% more than in Spokane ($3,800), a roughly $600 spread.
Redmond WA
Typically around $4,400
Spokane WA
Lower costTypically around $3,800
Redmond vs Spokane: full breakdown
| Factor | Redmond | Spokane |
|---|---|---|
| Typical 2026 cost | $4,400 | $3,800 |
| Estimated range | $1,750–$7,050 | $1,500–$6,100 |
| Labor index (vs US) | ×1.18 | ×1.02 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,400 | $2,100 |
| Materials/equipment | $2,000 | $1,700 |
These are 2026 planning figures for spray foam insulation, localized to each city — not formal quotes.
Is the gap worth worrying about?
That's a real $600 difference (16%) on spray foam insulation — worth factoring in, though off-season timing and a tighter quote in Redmond can narrow it.
Spray foam insulation by type: Redmond vs Spokane
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 | Redmond | Spokane |
|---|---|---|
| Open-cell | $1,750–$5,300 | $1,500–$4,550 |
| Closed-cell | $2,950–$8,250 | $2,550–$7,100 |
All figures are 2026 localized planning estimates for spray foam insulation — get an actual quote before you commit.
Spray foam insulation by area: Redmond vs Spokane
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 | Redmond | Spokane |
|---|---|---|
| 500 sq ft | $1,050–$2,800 | $900–$2,450 |
| 1,000 sq ft | $1,750–$4,700 | $1,500–$4,050 |
| 1,500 sq ft | $2,600–$6,450 | $2,250–$5,600 |
| 2,000+ sq ft | $3,300–$7,650 | $2,850–$6,600 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
What insulation pros earn in each metro
Roughly 55% of what you pay for spray foam insulation is labor, which is why local wages explain most of the price gap. The numbers below are actual metro wages for skilled installers, sourced from BLS OEWS — not guesses.
Seattle-Tacoma-Bellevue metro · about 32% above the US average installer wage.
No BLS metro wage series for Spokane; we use Washington 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
Fall is when everyone rushes to insulate before winter hits, making it the busiest and priciest season. Spring and summer see far less demand — and utility rebate budgets are often still full 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.
Rare among home projects, insulation punishes the half-measure — the money saved by under-insulating or skipping the air-seal comes back as higher bills. Meet the DOE R-value for your zone, seal the leaks first, and use the rebates on the table.
Redmond vs Spokane
Is spray foam insulation cheaper in Redmond or Spokane?
Yes — Redmond costs more. Expect around $4,400 for spray foam insulation there against $3,800 in Spokane, about $600 (16%) apart in 2026.
Why does spray foam insulation cost more in Redmond than Spokane?
Labor rates explain most of it — 1.18 in Redmond vs 1.02 in Spokane. A mixed climate versus mixed accounts for the rest.
How much is spray foam insulation in Redmond, WA?
Expect to pay $1,750 to $7,050 for spray foam insulation in Redmond in 2026, averaging around $4,400.
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 Redmond and Spokane (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. $600 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Redmond 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