Window replacement costs in Omaha

Omaha asks a window to handle both ends of the thermometer. At Eppley Airfield, the high reaches 90 or more on about 33 days in a normal year. The low drops to 10 degrees or colder on about 27 nights, and to zero or below on about 9. So the glass you pick has to hold January heat in and still live with July sun.

Nebraska sets one energy code for the whole state. It's the 2018 IECC, with no state amendments to the residential part, and it has been mandatory everywhere in Nebraska since July 1, 2020, according to the Energy Department's code tracker. The department's county list puts Douglas County in climate zone 5.

The state's own fact sheet on that code turns it into one number for glass: a U-factor of 0.30 for windows and doors in new homes and additions. It also notes that state law lets a city adopt its own energy code, as long as the result doesn't use more energy. If you're putting new windows in an older Omaha house, 0.30 is a handy yardstick for what a new house here has to meet.

Within Omaha proper, roughly six houses in ten predate 1980, the Census Bureau estimates. Metro-wide, three in ten homes are from 2000 or later.