Insulation Cost in Stratham, NH in 2026
Most Insulation projects in Stratham, NH cost between $1,400 and $6,000. The typical price is $2,900.
Stratham prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
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 Stratham, NH
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.19 |
| Mid-range | $2.38 |
| High-end | $4.96 |
Insulation contractors in Stratham, NH
Businesses listed on Google near Stratham, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Valley Insulation LLC
4.9(65 reviews)
141 Hobbs St, Conway, NH 03818
Premier Attic Insulation
5.0(16 reviews)
30 Third St, Dover, NH 03820
Priority Insulation Services
4.8(16 reviews)
6 Atkinson St, Portsmouth, NH 03801
Ambient Insulations LLC
4.7(14 reviews)
74 Lovering Rd, North Hampton, NH 03862
My Home Contracting
5.0(7 reviews)
17 Raymond Rd, Deerfield, NH 03037
Johnson Spray Foam Insulators LLC
5.0(6 reviews)
230 Olde Canterbury Rd, Northwood, NH 03261