The windows of the dower house come from two different periods. The upstairs window shown here has small window panes and is classified as a rococo window. These were common in northern Norway during the latter half of the 18th and the beginning of the 19th century. This type of window typically has two casements hinged to the mullion and each would be two panes wide and three or four panes high depending on the room's ceiling height. This upstairs window at Korsnes is three panes tall, has thin and finely profiled glazing bars and old uneven glass.

The ground floor window is in the empire-style and has a mullion and two casements with three panes each. This is a typical empire-style window for small and medium sized houses, which had become common in northern Norway by the middle of the 19th century and it remained so until the end of that century. The window surrounds, with largish baroque inspired consoles, are the same on both floors which might mean that there at first were rococo windows downstairs as well. If so, each casement would have been two panes wide and four panes high.