Window Well Covers in Denver
Last updated
Window well covers keep out snow, debris and falls, but a cover over an egress well must still open from the inside without keys, tools or special knowledge.
What it involves
Covers keep out snow, debris and falls. An egress-well cover must still open from the inside without keys, tools or special knowledge (2021 IRC R310.4.4, restated in Scott County, MN's EERO handout; local amendments can differ).
Code basics
Min. 5.7 sq ft net clear opening (5 sq ft at grade/below grade), 24 in clear height, 20 in clear width, sill no more than 44 in (Arapahoe County / IRC 2021 R310). Full details: code guide.
Permits
Denver requires a permit for new egress windows (source). Landmark/historic properties also need design review (source).
Related guides
- Egress window check: see if your window and well likely meet the minimums Compare cover types, read about covers for rental basements, or see window well installation. Check whether your basement needs egress before choosing a cover.
FAQ
- How much does it cost? → cost guide
- Do I need a permit? → Yes in Denver; see the code guide.
Frequently asked questions
What do window well covers do?
Covers keep out snow, debris and falls.
Can a window well cover go over an egress well?
Yes, but it must still open from the inside without keys, tools or special knowledge (2021 IRC R310.4.4). Local amendments can differ.
What egress opening must stay clear under the cover?
At least 5.7 sq ft net clear opening (5 sq ft at grade/below grade), 24 in clear height, 20 in clear width, with a sill no more than 44 in above the floor (IRC 2021 R310, as restated by Arapahoe County).