Insulation Cost in Los Altos, CA in 2026
Most Insulation projects in Los Altos, CA cost between $1,700 and $7,000. The typical price is $3,300.
Labour and materials in Los Altos run about 22% 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 Los Altos, CA
| Quality tier | Cost per sq ft |
|---|---|
| Budget | $1.38 |
| Mid-range | $2.75 |
| High-end | $5.74 |
Insulation contractors in Los Altos, CA
Businesses listed on Google near Los Altos, CA. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Attic Elite
4.9(566 reviews)
37310 Cedar Blvd Ste H, Newark, CA 94560
Attic Star
4.9(192 reviews)
2847 Middlefield Rd, Redwood City, CA 94063
Attic Bros of Mountain View
4.9(46 reviews)
800 W El Camino Real Unit 310, Mountain View, CA 94040
Attic Bros of Palo Alto
4.9(39 reviews)
3000 El Camino Real #2, Palo Alto, CA 94306
Delta Spray Foam Insulation
5.0(34 reviews)
472 Castro St, Mountain View, CA 94041
All Bay Insulation & HVAC
5.0(32 reviews)
149 Commonwealth Dr Ste 1090, Menlo Park, CA 94025