Attic Insulation cost: Medford vs Portland (2026)
The two metros aren't quite in sync on attic insulation: Medford sits 3% below Portland, or roughly $3,900 versus $4,000 — about $100 apart.
Medford OR
Lower costTypically around $3,900
Portland OR
Typically around $4,000
Medford vs Portland: full breakdown
| Factor | Medford | Portland |
|---|---|---|
| Typical 2026 cost | $3,900 | $4,000 |
| Estimated range | $1,550–$6,200 | $1,600–$6,400 |
| Labor index (vs US) | ×1.03 | ×1.07 |
| Climate zone | Mixed | Mixed |
| Climate factor | ×1 | ×1 |
| Local permit | None | None |
| Labor share | $2,150 | $2,200 |
| Materials/equipment | $1,750 | $1,800 |
Treat these as 2026 localized estimates for attic insulation, not quotes from a contractor.
Is the price difference a dealbreaker?
3% is within noise for attic insulation — contractor selection and timing move the price more than which of these two metros you're in.
Attic insulation by type: Medford vs Portland
Every attic insulation type gets its own localized price for each metro, using the same labor, climate and permit adjustments — a true apples-to-apples comparison.
| Type | Medford | Portland |
|---|---|---|
| Fiberglass batts | $1,550–$4,150 | $1,600–$4,250 |
| Blown-in fiberglass | $1,550–$4,650 | $1,600–$4,800 |
| Blown cellulose | $1,750–$5,150 | $1,800–$5,350 |
| Spray foam | $3,600–$9,300 | $3,750–$9,600 |
Attic insulation numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
Attic insulation by area: Medford vs Portland
Attic insulation is priced by the square foot of attic floor, typically $1–$7 per sq ft installed depending on material and how deep you build the R-value. Blown-in is cheapest; spray foam costs the most.
| Size | Medford | Portland |
|---|---|---|
| 500 sq ft | $700–$2,250 | $750–$2,350 |
| 1,000 sq ft | $1,250–$3,600 | $1,300–$3,750 |
| 1,500 sq ft | $1,850–$5,150 | $1,900–$5,350 |
| 2,000+ sq ft | $2,500–$6,700 | $2,550–$6,950 |
Attic 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
Roughly 55% of what you pay for attic 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.
No BLS metro wage series for Medford; we use Oregon regional price parity instead.
Portland-Vancouver-Hillsboro metro · about 12% 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 attic insulation in either city
Because most homeowners wait for the fall pre-winter panic, that's when prices peak. Getting it done in spring or summer means less competition and, often, an untapped rebate budget.
How much insulation is worth paying for?
Insulation is priced on more than thickness. Target R-value, the presence or absence of air-sealing, and the material itself each pull the number in a different direction, and each changes how fast the job pays for itself.
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 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.
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.
Payback is the whole point with insulation, and it arrives fastest when the job is done in full: air-sealing, the DOE-recommended R-value for your climate zone, and whatever utility rebates you qualify for. Trimming any one of those trims the return, not the cost.
Medford vs Portland
Is attic insulation cheaper in Medford or Portland?
In 2026, attic insulation is cheaper in Medford at about $3,900, versus $4,000 in Portland — a difference of about $100 (3%).
Why does attic insulation cost more in Portland than Medford?
The main driver is local labor rates: Portland's labor index is 1.07 versus 1.03 in Medford. Climate zone (mixed vs mixed) also shift the total.
How much is attic insulation in Medford, OR?
attic insulation in Medford runs $1,550–$6,200 as of 2026 — most jobs land near $3,900.
When is the cheapest time to buy attic 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 Portland, 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 attic insulation cost?
Rarely. The $100 difference is real but one-time, and you can often close most of it in Portland 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 attic insulation in other cities
Updated June 2026 · By Serhat Özçelik