Attic Insulation cost: Gulfport vs Hattiesburg (2026)
Gulfport and Hattiesburg are a near-perfect match on attic insulation cost in 2026, both landing around $3,600.
Gulfport MS
Typically around $3,600
Hattiesburg MS
Typically around $3,600
Gulfport vs Hattiesburg: full breakdown
| Factor | Gulfport | Hattiesburg |
|---|---|---|
| Typical 2026 cost | $3,600 | $3,600 |
| Estimated range | $1,450–$5,750 | $1,450–$5,750 |
| Labor index (vs US) | ×0.94 | ×0.94 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | None | None |
| Labor share | $2,000 | $2,000 |
| Materials/equipment | $1,600 | $1,600 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national attic insulation range for local labor, climate and permits.
Basically a tie — focus on the contractor
Neither metro has a cost edge on attic insulation — spend your decision-making energy on the contractor, not the location.
Attic insulation by type: Gulfport vs Hattiesburg
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 | Gulfport | Hattiesburg |
|---|---|---|
| Fiberglass batts | $1,450–$3,850 | $1,450–$3,850 |
| Blown-in fiberglass | $1,450–$4,300 | $1,450–$4,300 |
| Blown cellulose | $1,650–$4,800 | $1,650–$4,800 |
| Spray foam | $3,350–$8,600 | $3,350–$8,600 |
These are 2026 planning figures for attic insulation, localized to each city — not formal quotes.
Attic insulation by area: Gulfport vs Hattiesburg
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 | Gulfport | Hattiesburg |
|---|---|---|
| 500 sq ft | $650–$2,100 | $650–$2,100 |
| 1,000 sq ft | $1,150–$3,350 | $1,150–$3,350 |
| 1,500 sq ft | $1,700–$4,800 | $1,700–$4,800 |
| 2,000+ sq ft | $2,300–$6,250 | $2,300–$6,250 |
These are 2026 planning figures for attic insulation, localized to each city — not formal quotes.
Cheapest time for attic 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?
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
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 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.
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.
Gulfport vs Hattiesburg
Is attic insulation cheaper in Gulfport or Hattiesburg?
There's no meaningful difference: attic insulation runs about $3,600 in both places.
Why does attic insulation cost more in Hattiesburg than Gulfport?
The main driver is local labor rates: Hattiesburg's labor index is 0.94 versus 0.94 in Gulfport. Climate zone (hot vs hot) also shift the total.
How much is attic insulation in Gulfport, MS?
In Gulfport, attic insulation typically runs $1,450–$5,750 in 2026, with most homeowners paying around $3,600.
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 Gulfport and Hattiesburg (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?
Not on this basis — Gulfport and Hattiesburg cost about the same. Weigh contractor quality, scope, equipment tier and timing instead.
Compare attic insulation in other cities
Updated June 2026 · By Serhat Özçelik