Egress Window Installation in Bismarck, ND

What a full egress install includes

A new egress window is a small construction project, not a window swap. Done properly, one job includes every step below — and a complete quote should itemize all of them:

• Utility locate and excavation — call 811, then dig the well pit outside the foundation wall.
• Foundation cut — a wet-cut concrete saw opens a code-sized hole in the poured or block wall, with a lintel or header where the structure needs it.
• Window well — sized so the window opens fully: at least 9 square feet of horizontal area, 36 inches of projection and width, with a permanent ladder if the well is deeper than 44 inches.
• Drainage — the well ties into the home's drain tile where it exists, so snowmelt doesn't collect and freeze against the window.
• Window set and sealing — the unit is installed, flashed, and insulated for a North Dakota winter.
• Permit and inspections — a City of Bismarck building permit, then the framing and final inspections that close it out.

When does code require one?

Every basement and every sleeping room needs at least one operable emergency escape and rescue opening. In a finished basement, each bedroom needs its own egress window; a basement with no bedrooms still needs one opening. The window must give a net clear opening of at least 5.7 square feet, at least 24 inches tall and 20 inches wide, with a sill no higher than 44 inches off the floor.

The full requirements — including the window well rules and the Bismarck permit process — are on our North Dakota egress code guide.

The measurement that decides pass or fail

The 5.7 square feet is the net clear opening — the hole a person can actually climb through with the window fully open — not the size printed on the box. Frame and sash eat into the number, and a window marketed as "egress size" can still fail the final inspection. An installer who does egress work every week sizes from the net clear opening backward, which is most of what you're paying for.

How long it takes

The work happens in sequence: excavation and the foundation cut come first, then the window is set, the well installed, and the drainage finished. Weather, soil, and surprise utilities all move the schedule — ask your installer how long your site will take. The permit itself is fast in Bismarck: most residential permits are issued within one business day.

What it costs

Across 2026 national industry data, most full installs land between roughly $2,700 and $5,900 depending on foundation type, depth, and window choice — a new cut through poured concrete costs more than a swap into an existing opening. The line-item breakdown, the cost drivers, and the exact Bismarck permit fee math are on the egress window cost page.

Get a local quote

Tell us about the basement and we'll connect you with a Bismarck-area pro who does egress work to code — no obligation, and you'll know what a fair itemized quote looks like before anyone shows up.