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For Alliant Energy's residential, business and agricultural customers in Iowa
Do your doors or windows frost up on cold winter days? Do you feel cold drafts when the wind blows? These are signs that your doors and windows may need to be replaced with new windows and doors.
By replacing single-paned windows with double-paned windows, you can save an estimated $360 per year in heating and cooling costs in the typical Iowa home.
2013 Iowa Replacement Windows and Doors claim form [PDF]
Note: New construction projects or additions do not qualify.
Eligible equipment and rebate amounts
Replacement doors & windows
| Equipment | Rebate |
| Qualifying doors (5 max., min. size of 8 sq. ft. each) | |
| Solid door (0.20 to 0.11 U-Factor) | $25 each |
| Solid door (= 0.10 U-Factor) | $50 each |
| Glass entry door (at least 50 percent glass and = 0.30 U-factor) | $25 each |
| Qualifying replacement windows (min. size of 8 sq. ft. each) | |
| U-Factor 0.30 Sashes installed without new windows do not qualify for a rebate. |
$25 each |
National Fenestration Rating Council (NFRC) label
How do I qualify?
- You must be an electric or natural gas customer of Alliant Energy in Iowa.
- Replacement doors and windows must be installed in a conditioned space where Alliant Energy supplies the primary heating or cooling energy.
- Replacement doors and windows must be certified by the National Fenestration Rating Council (NFRC)
- The U-Factor will be found on the NFRC label (shown above).
- One opening = one window/door rebate.
- Storm doors do not qualify for rebates.
- Windows and doors must replace existing windows and doors in a conditioned space.
- Windows and doors for new additions or construction do not qualify.
How do I apply?
- Professionally installed equipment and measures: Have your dealer send a completed rebate form, copy of the NFRC label verifying window efficiency and invoice to Alliant Energy within 90 days of installation.
- Self-installed equipment and measures: Complete the appropriate rebate form, attach a copy of the NFRC label verifying window efficiency and a copy of the itemized, dated receipt and send to Alliant Energy within 90 days of installation.