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Question DetailsAsked on 10/26/2017

what would be the cost of installing an egress window in a basement bedroom?

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1 Answer


If the window location can put its sill about 6 inches or more above ground level outside (so a half-basement or "daylight" basement or such), not much more than any other opening window. If the window needs to be partly or fully below ground so you need an egress window well with steps or a stairwell up to ground level, then considerably more.

Local building code requirements also matter a lot - some allow it to open out (fully opening) into a 3-4 foot or more radius window well as long as the window well "floor" is not more than 3 feet below grade, so persons exiting in an emergency have to crawl up over up to a 3 foot lip or rim on the window well - others require that any step-up higher than a single stair step height (so about 7-8 inches) to be actual stair steps, so that combined with water infiltration prevention can add to the cost, sometimes as much or more than the cost of installing the window itself.

Below are a number of previous similar questions with answers which should help - bear in mind window costs have really gone up dramatically in the past few years, so older responses saying around $500 or so for the lower end price range for a simple above-ground window are probably a couple hundred $ low now.

Note one ormore of the responses deal with above-grade bedroom egress windows, not basement ones - so would be applicable to the case where the window sill can be about 6 inches or more above outside grade level.

Answered 3 years ago by LCD

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