Attic Insulation cost: Columbia vs Hilton Head Island (2026)
In 2026, attic insulation is about 3% less expensive in Columbia than in Hilton Head Island. Most homeowners pay around $3,700 in Columbia versus $3,800 in Hilton Head Island — a gap of roughly $100.
Columbia SC
Lower costTypically around $3,700
Hilton Head Island SC
Typically around $3,800
Columbia vs Hilton Head Island: full breakdown
| Factor | Columbia | Hilton Head Island |
|---|---|---|
| Typical 2026 cost | $3,700 | $3,800 |
| Estimated range | $1,450–$5,900 | $1,500–$6,100 |
| Labor index (vs US) | ×0.96 | ×0.99 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | None | None |
| Labor share | $2,050 | $2,100 |
| Materials/equipment | $1,650 | $1,700 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national attic insulation range for local labor, climate and permits.
Columbia vs Hilton Head Island
Is attic insulation cheaper in Columbia or Hilton Head Island?
In 2026, attic insulation is cheaper in Columbia at about $3,700, versus $3,800 in Hilton Head Island — a difference of about $100 (3%).
Why does attic insulation cost more in Hilton Head Island than Columbia?
The main driver is local labor rates: Hilton Head Island's labor index is 0.99 versus 0.96 in Columbia. Climate zone (hot vs hot) also shift the total.
How much is attic insulation in Columbia, SC?
In Columbia, attic insulation typically runs $1,450–$5,900 in 2026, with most homeowners paying around $3,700.
Updated June 2026 · By Costadia Editorial