Window replacement costs in Indianapolis

Indiana's residential energy code carries a newer label than it acts like. The state adopted a code based on the 2018 IECC, in force since late December 2019. But it amended that code enough that the Energy Department's code program rates it as equal to the 2009 model, and figures the amendments cut its efficiency by about 15.7 percent against the 2018 version. So Indiana's code floor sits lower than the model it started from. Nothing stops you from buying windows that beat the minimum.

Indianapolis weather gives both seasons a say. A normal year at the airport brings about 105 nights at or below freezing and about 20 days of 90 or more. The Energy Department's county list puts Marion County in climate zone 5, the cold zone.

The age of your house shapes the job too. Inside the city limits, the median build year is 1974, and close to 60 percent of houses are older than 1980. Across the wider metro, about three in ten went up in 2000 or later.