Insulation Cost in Downey, CA in 2026
Most Insulation projects in Downey, CA cost between $1,700 and $7,000. The typical price is $3,400.
Labour and materials in Downey run about 24% 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 Downey, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.40 |
| Mid-range | $2.79 |
| High-end | $5.82 |
Insulation contractors in Downey, CA
Businesses listed on Google near Downey, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Valley Insulation Services
4.9(15 reviews)
1414 W Florence Ave, Los Angeles, CA 90047
Shiffer Insulation
5.0(14 reviews)
17550 Bloomfield Ave, Cerritos, CA 90703
Overnite insulation
5.0(10 reviews)
9240 1/2 Hall Rd, Downey, CA 90241
Attic Chief
5.0(9 reviews)
11836 Downey Ave Unit 101, Downey, CA 90241
Legacy Insulation
4.8(10 reviews)
5920 Triangle Dr, Commerce, CA 90040
Better Value Attic Insulation
5.0(7 reviews)
7434 Scout Ave, Bell Gardens, CA 90201