Attic Insulation cost: Gillette vs Laramie (2026)
Budget-wise, attic insulation in Gillette ($3,800) runs 3% less than in Laramie ($3,900), a roughly $100 spread.
Gillette WY
Lower costTypically around $3,800
Laramie WY
Typically around $3,900
Gillette vs Laramie: full breakdown
| Factor | Gillette | Laramie |
|---|---|---|
| Typical 2026 cost | $3,800 | $3,900 |
| Estimated range | $1,500–$6,050 | $1,550–$6,250 |
| Labor index (vs US) | ×0.93 | ×0.97 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.08 | ×1.08 |
| Local permit | None | None |
| Labor share | $2,100 | $2,150 |
| Materials/equipment | $1,700 | $1,750 |
All figures are 2026 localized planning estimates for attic insulation — get an actual quote before you commit.
Is the price difference a dealbreaker?
A 3% difference on attic insulation is minor — you'll typically see a wider spread just from getting multiple quotes in the same city, so don't let location drive the decision.
Attic insulation by type: Gillette vs Laramie
We localize each attic insulation type separately for both metros, applying the same labor, climate and permit adjustments each time, so you're comparing like for like.
| Type | Gillette | Laramie |
|---|---|---|
| Fiberglass batts | $1,500–$4,050 | $1,550–$4,200 |
| Blown-in fiberglass | $1,500–$4,550 | $1,550–$4,700 |
| Blown cellulose | $1,700–$5,050 | $1,800–$5,200 |
| Spray foam | $3,550–$9,100 | $3,650–$9,400 |
Treat these as 2026 localized estimates for attic insulation, not quotes from a contractor.
Attic insulation by area: Gillette vs Laramie
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 | Gillette | Laramie |
|---|---|---|
| 500 sq ft | $700–$2,200 | $750–$2,300 |
| 1,000 sq ft | $1,200–$3,550 | $1,250–$3,650 |
| 1,500 sq ft | $1,800–$5,050 | $1,900–$5,200 |
| 2,000+ sq ft | $2,400–$6,550 | $2,500–$6,800 |
All figures are 2026 localized planning estimates for attic insulation — get an actual quote before you commit.
Cheapest time for attic insulation in either city
Everyone waits until fall to insulate, which is exactly why fall costs the most. Spring and summer are quieter for installers and often catch a fresh year's rebate budget before it runs dry.
How much insulation is worth paying for?
Three choices shape an insulation budget — target R-value, whether air-sealing is included, and material type. Our editors weigh how each affects payback.
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.
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 R-value case
Insulate to the DOE recommendation for your climate zone — under-insulating to save money leaves comfort and energy savings on the table that would have paid the job back.
Air-seal before you insulate, hit the DOE-recommended R-value for your zone, and claim every rebate you're eligible for — insulation is a rare case where doing the full job is also the cheapest one, long-term.
Gillette vs Laramie
Is attic insulation cheaper in Gillette or Laramie?
Gillette wins on price: attic insulation runs about $3,800 there versus $3,900 in Laramie, a gap of roughly $100 (3%) as of 2026.
Why does attic insulation cost more in Laramie than Gillette?
It comes down to labor: Laramie indexes at 0.97 against Gillette's 0.93. The cold-vs-cold climate difference adds to the gap.
How much is attic insulation in Gillette, WY?
Expect to pay $1,500 to $6,050 for attic insulation in Gillette in 2026, averaging around $3,800.
When is the cheapest time to buy attic insulation — and does it differ by city?
It doesn't vary by location — Spring and summer is the discount window in both Gillette and Laramie (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 attic insulation cost?
Probably not. Yes, $100 is a real gap, but it's a one-time cost you can partly offset in Laramie with off-season timing and tighter bids. Long-term factors like energy prices and home condition matter more than this one number.
Compare attic insulation in other cities
Updated June 2026 · By Serhat Özçelik