Insulation Cost in Lewiston, ID in 2026
Most Insulation projects in Lewiston, ID cost between $1,400 and $6,000. The typical price is $2,800.
Labour and materials in Lewiston run about 4% 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 Lewiston, ID
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.17 |
| Mid-range | $2.34 |
| High-end | $4.87 |
Insulation contractors in Lewiston, ID
Businesses listed on Google near Lewiston, ID. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Two B Insulation
5.0(61 reviews)
25 S 12th W, St Anthony, ID 83445
Dye Hard, LLC
4.9(46 reviews)
1617 G St, Lewiston, ID 83501
Lucas Martin Drywall Premium Property LLC.
4.9(15 reviews)
1647 13th St, Clarkston, WA 99403
K&G Construction LLC
4.7(15 reviews)
625 D St, Lewiston, ID 83501
Central Idaho Systems/CIS
4.3(4 reviews)
717 29th St N, Lewiston, ID 83501
JNB Builders
5.0(4 reviews)
600 Tinker Creek Ln, Kooskia, ID 83539