Spray Foam Insulation cost: Medford vs Salem (2026)
Medford runs 1% higher than Salem for spray foam insulation — expect around $3,900 in Medford against $3,850 in Salem, a difference of about $50.
Medford OR
Typically around $3,900
Salem OR
Lower costTypically around $3,850
Medford vs Salem: full breakdown
| Factor | Medford | Salem |
|---|---|---|
| Typical 2026 cost | $3,900 | $3,850 |
| Estimated range | $1,550–$6,200 | $1,550–$6,150 |
| Labor index (vs US) | ×1.03 | ×1.03 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,150 | $2,100 |
| Materials/equipment | $1,750 | $1,750 |
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: Medford vs Salem
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 | Medford | Salem |
|---|---|---|
| Open-cell | $1,550–$4,650 | $1,550–$4,600 |
| Closed-cell | $2,600–$7,250 | $2,550–$7,200 |
Treat these as 2026 localized estimates for spray foam insulation, not quotes from a contractor.
Spray foam insulation by area: Medford vs Salem
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 | Medford | Salem |
|---|---|---|
| 500 sq ft | $950–$2,500 | $900–$2,450 |
| 1,000 sq ft | $1,550–$4,150 | $1,550–$4,100 |
| 1,500 sq ft | $2,250–$5,700 | $2,250–$5,650 |
| 2,000+ sq ft | $2,900–$6,700 | $2,900–$6,700 |
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
Everyone insulates in fall before winter, so that's the busy, full-price season. Booking in spring or summer catches off-peak pricing — and utility rebate budgets are often freshest early in the year.
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
Aim for the R-value the DOE assigns your zone, not a round number that sounds close enough. Every point you fall short is comfort you don't feel and utility savings you never bank — savings that would have covered the extra material several times over.
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 carries some of the strongest incentive money in remodeling, with utility and state rebates covering a real portion of the cost since the federal 25C credit expired at the end of 2025. Look up what applies on DSIRE, then schedule the work while rebate funds are still unclaimed for the year.
What makes insulation unusual is that the thorough version and the cheap version are the same version — seal first, meet the DOE R-value for your zone, and layer on the rebates. A partial job just pushes the payback date further out.
Medford vs Salem
Is spray foam insulation cheaper in Medford or Salem?
In 2026, spray foam insulation is cheaper in Salem at about $3,850, versus $3,900 in Medford — a difference of about $50 (1%).
Why does spray foam insulation cost more in Medford than Salem?
It comes down to labor: Medford indexes at 1.03 against Salem's 1.03. The mixed-vs-mixed climate difference adds to the gap.
How much is spray foam insulation in Medford, OR?
Expect to pay $1,550 to $6,200 for spray foam insulation in Medford in 2026, averaging around $3,900.
When is the cheapest time to buy spray foam insulation — and does it differ by city?
Timing doesn't change by city here — Spring and summer is the cheapest window in both Medford and Salem, saving roughly 5–10%. Avoid the pre-winter fall rush in either location, when emergency replacements push prices up.
Should I choose where to live based on spray foam insulation cost?
Rarely. The $50 difference is real but one-time, and you can often close most of it in Medford by buying in the off-season and getting tighter, apples-to-apples bids. Ongoing factors — energy prices, climate and home condition — matter more over the life of the system.
Compare spray foam insulation in other cities
Updated June 2026 · By Serhat Özçelik