Install Blown-In Insulation Cost in South Carolina in 2026
Most Install Blown-In Insulation projects in South Carolina cost between $1,200 and $4,800. The typical price is $2,300.
Labour and materials in South Carolina run about 9% below the national average. These figures are adjusted for that, so they are not the national average you will find elsewhere.
What drives the price
- Batt, blown-in cellulose or closed-cell spray foam
- Target R-value for your climate zone
- Attic, wall or crawlspace access
- Air sealing done alongside the insulation
Usually included
- Insulation material to the specified R-value
- Installation and air sealing at obvious gaps
- Cleanup and disposal
Usually extra
- Removing contaminated existing insulation
- Ventilation or moisture remediation
- Drywall work for wall injection
Unit prices in South Carolina
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $0.96 |
| Mid-range | $1.92 |
| High-end | $3.99 |