Install Blown-In Insulation Cost in Derry, NH in 2026
Most Install Blown-In Insulation projects in Derry, NH cost between $1,200 and $5,000. The typical price is $2,500.
Labour and materials in Derry run about 3% above 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 Derry, NH
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.04 |
| Mid-range | $2.08 |
| High-end | $4.34 |
Insulation contractors in Derry, NH
Businesses listed on Google near Derry, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
USA Insulation of Southern NH
4.6(302 reviews)
560A Rockland Ave, Manchester, NH 03102
Quality Insulation
4.7(229 reviews)
110 Perimeter Rd, Nashua, NH 03063
Valley Insulation LLC
4.9(66 reviews)
141 Hobbs St, Conway, NH 03818
Green Era Insulation, LLC
4.7(53 reviews)
49 Union St, Manchester, NH 03103
The Weatherize Guyz ,LLC
4.9(43 reviews)
1298 Smyth Rd #27, Hooksett, NH 03106
Spray Foam Insulators By Luke Whitcomb
5.0(37 reviews)
90 Suncook Vly Hwy, Chichester, NH 03258