Insulation Cost in Trenton, NJ in 2026
Most Insulation projects in Trenton, NJ cost between $1,600 and $6,500. The typical price is $3,200.
Labour and materials in Trenton run about 17% 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 Trenton, NJ
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.34 |
| Mid-range | $2.68 |
| High-end | $5.58 |
Insulation contractors in Trenton, NJ
Businesses listed on Google near Trenton, NJ. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Koala Insulation of Central Jersey
5.0(219 reviews)
179 South St, Freehold, NJ 07728
Koala Insulation of Mercer & Middlesex Counties
5.0(127 reviews)
314 Cortland St, Trenton, NJ 08638
Gunner Insulation LLC
4.9(126 reviews)
8595 Old Bristol Pike, Tullytown, PA 19007
Home Insulation Experts Inc
4.9(19 reviews)
850 Ridgewood Ave Unit C, North Brunswick Township, NJ 08902
Riverside Insulation
5.0(11 reviews)
68 Winding Wood Dr, Sayreville, NJ 08872
DFF Attic Insulation & Roofing Services Inc Of NJ
4.7(11 reviews)
1102 Sylvan Ave, Hamilton Township, NJ 08610