Spray Foam Insulation cost: Hillsboro vs Keizer (2026)
The two metros aren't quite in sync on spray foam insulation: Hillsboro sits 4% above Keizer, or roughly $4,000 versus $3,850 — about $150 apart.
Hillsboro OR
Typically around $4,000
Keizer OR
Lower costTypically around $3,850
Hillsboro vs Keizer: full breakdown
| Factor | Hillsboro | Keizer |
|---|---|---|
| Typical 2026 cost | $4,000 | $3,850 |
| Estimated range | $1,600–$6,400 | $1,550–$6,150 |
| Labor index (vs US) | ×1.07 | ×1.03 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,200 | $2,100 |
| Materials/equipment | $1,800 | $1,750 |
Spray foam insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Is the gap worth worrying about?
That 4% gap is small — for spray foam insulation it's usually less than the spread between two local contractors' quotes, so the metro matters far less than who you hire and when you buy.
Spray foam insulation by type: Hillsboro vs Keizer
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 | Hillsboro | Keizer |
|---|---|---|
| Open-cell | $1,600–$4,800 | $1,550–$4,600 |
| Closed-cell | $2,650–$7,450 | $2,550–$7,200 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national spray foam insulation range for local labor, climate and permits.
Spray foam insulation by area: Hillsboro vs Keizer
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 | Hillsboro | Keizer |
|---|---|---|
| 500 sq ft | $950–$2,550 | $900–$2,450 |
| 1,000 sq ft | $1,600–$4,250 | $1,550–$4,100 |
| 1,500 sq ft | $2,350–$5,850 | $2,250–$5,650 |
| 2,000+ sq ft | $3,000–$6,950 | $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
Since labor accounts for around 55% of what a spray foam insulation job costs, it's the biggest lever behind any price gap between cities. What you're seeing below is actual BLS metro wage data for skilled installers — not a guess.
Portland-Vancouver-Hillsboro metro · about 12% above the US average installer wage.
No BLS metro wage series for Keizer; we use Oregon 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 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
Few home projects come with rebate support like insulation does — utility and state programs routinely offset a meaningful slice of the bill (the federal 25C credit closed in December 2025). Run your address through DSIRE first, and book when a program's yearly budget has just refilled.
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.
Hillsboro vs Keizer
Is spray foam insulation cheaper in Hillsboro or Keizer?
Yes — Hillsboro costs more. Expect around $4,000 for spray foam insulation there against $3,850 in Keizer, about $150 (4%) apart in 2026.
Why does spray foam insulation cost more in Hillsboro than Keizer?
The main driver is local labor rates: Hillsboro's labor index is 1.07 versus 1.03 in Keizer. Climate zone (mixed vs mixed) also shift the total.
How much is spray foam insulation in Hillsboro, OR?
In Hillsboro, spray foam insulation typically runs $1,600–$6,400 in 2026, with most homeowners paying around $4,000.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
The best window is the same in both Hillsboro and Keizer: 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?
That would be a stretch. $150 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Hillsboro 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