Home energy upgrades cost in 2026
A diagnostic audit runs $250–$650. Targeted insulation and air sealing run $1,500–$10,000 depending on scope. IRA HOMES & HEEHRA rebates can cover much of the cost.
Free. No obligation. 60-second match.
- Licensed & insured pros
- Background-checked
- Your info stays private
- Free, no-obligation quotes
$250–$10,000
Typical audit or upgrade package in 2026, before applicable rebates and tax credits.
- $250–$650
Energy audit
Blower door, IR camera, report.
- $1,500–$4,500
Attic insulation
R-49 blown cellulose typical.
- $1,200–$3,500
Air sealing package
Top-plate, can lights, rim joists.
- $3,500–$10,000
Full weatherization
Audit + insulation + air sealing.
Cost factors
Home size
Square footage drives material and labor.
Existing R-value
Empty cavities cost less than removing failed insulation.
Insulation type
Blown cellulose is cheapest; closed-cell spray foam is premium.
Access
Tight crawlspaces and finished walls cost more.
Rebate stacking
Federal IRA + state + utility programs can stack.
By state
Labor, permitting, and material costs vary by state. These ranges scale the national average to your region.
| State | Typical range | |
|---|---|---|
| California | $300–$13,500 | Energy Efficiency in California → |
| Florida | $300–$10,400 | Energy Efficiency in Florida → |
| Illinois | $300–$10,600 | Energy Efficiency in Illinois → |
| New York | $300–$12,800 | Energy Efficiency in New York → |
| Texas | $300–$10,000 | Energy Efficiency in Texas → |
| Washington | $300–$11,500 | Energy Efficiency in Washington → |
Home energy upgrades cost in 2026
Your home deserves better than guesswork.
Get matched with vetted pros in 30 minutes.
Free. No obligation. 60-second match.