Attic Insulation cost: Biloxi vs Hattiesburg (2026)
Biloxi and Hattiesburg are a near-perfect match on attic insulation cost in 2026, both landing around $3,600.
Biloxi MS
Typically around $3,600
Hattiesburg MS
Typically around $3,600
Biloxi vs Hattiesburg: full breakdown
| Factor | Biloxi | 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 |
Treat these as 2026 localized estimates for attic insulation, not quotes from a contractor.
No real cost edge either way
With no real price gap on attic insulation, the choice comes down to contractor quality and timing, not which city you're in.
Attic insulation by type: Biloxi vs Hattiesburg
Below, each attic insulation option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Biloxi | 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 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national attic insulation range for local labor, climate and permits.
Attic insulation by area: Biloxi 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 | Biloxi | 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 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national attic insulation range for local labor, climate and permits.
Cheapest time for attic insulation in either city
Fall is when everyone rushes to insulate before winter hits, making it the busiest and priciest season. Spring and summer see far less demand — and utility rebate budgets are often still full that early in the year.
How much insulation is worth paying for?
Where an insulation budget lands depends less on square footage than on three calls — the R-value you target, whether air-sealing rides along, and which material fills the cavity.
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 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
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.
Rare among home projects, insulation punishes the half-measure — the money saved by under-insulating or skipping the air-seal comes back as higher bills. Meet the DOE R-value for your zone, seal the leaks first, and use the rebates on the table.
Biloxi vs Hattiesburg
Is attic insulation cheaper in Biloxi 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 Biloxi?
Hattiesburg's higher labor index (0.94 vs 0.94 in Biloxi) is the biggest factor, with the hot/hot climate split playing a smaller role.
How much is attic insulation in Biloxi, MS?
attic insulation in Biloxi runs $1,450–$5,750 as of 2026 — most jobs land near $3,600.
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 Biloxi and Hattiesburg, 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?
No — the cost is essentially identical between Biloxi and Hattiesburg. Base the decision on the things that actually vary: contractor reputation, scope, equipment tier and timing.
Compare attic insulation in other cities
Updated June 2026 · By Serhat Özçelik