Home/Egress Windows/Engineering & Permits
Egress Window Engineering & Permits
Cutting into a foundation is structural work. Every egress window and walkout we build is engineered, permitted and inspected, even when the city doesn't ask for it.
Our rule, on every job
No engineering, no cut. Period.
Your foundation holds up your house. When we make a new opening in it, a third-party structural engineer details exactly how that opening is cut, framed and supported for your specific wall. After the install, a certified structural engineering firm inspects the work and we get an approval letter for your project.
We do this on every egress window and walkout, whether or not your building department requires it. It protects your home, and it gives you paperwork you'll want when you sell.
- Third-party structural engineering detail
- Inspection by a certified structural engineering firm
- Approval letter for your project
- Building permit pulled by us
Permits across Colorado
We know your building department
We pull permits in Denver and the surrounding suburbs every week, and in cities up and down the Front Range. Each one has its own permit process, review times and inspection rules. We apply for and provide the permit so you don't have to.
Metro-wide
Denver, the suburbs and the Front Range
100%
Of our jobs get an engineering detail
$1M
General liability per incident
Class C
Colorado residential contractor, No. 240633
How the paperwork flows
From estimate to sign-off
01
Site details
At the estimate we note the wall type, opening size, well location and anything above the opening.
02
Engineering detail
An independent structural engineer designs the opening and header for your wall.
03
Permit
We submit to your city or county and schedule the install once the permit is issued.
04
Inspection & letter
The engineering firm and the building department inspect, and you receive the approval letter.
Questions
Engineering and permit questions
Do I need a permit for an egress window?
Yes. Enlarging or cutting a new opening in a foundation wall requires a building permit in Colorado cities and counties, and the foundation cut needs a design from a licensed professional. We take care of both.
Why do you engineer every job, even when the city doesn’t require it?
Because every wall is different, and the opening carries the weight of your house. An engineering detail and inspection on every job protects your home and gives you documentation when you sell.
How long do permits take?
It depends on your building department and the season. Most jobs are scheduled about three to six weeks out, including permit time.
Will I get paperwork for my records?
Yes. You receive an approval letter for your project, and the permit is closed out with the building department after inspection.
Reviews
Customers on a hassle-free permit process
“Sunny from Denver Egress Windows was very helpful with our permitting process.”
Luke Mcconville
“They are simply the BEST. In a time when engineering and creativity needed to be brought together. They did it.”
Suz S
“Outstanding, timely work. They made our basement a much brighter place for a very reasonable price. Furthermore, they took care of the permit work (we live in an historic landmark district, so this was beastly). We would highly recommend Denver Egress to anyone!”
Rachel Flatau
Let us handle the permit for you
Send your address and a photo of the project area. We'll check your city's requirements and include engineering and the permit in your estimate.
(720) 626-4221Serving Denver and the Front Range. Showroom and virtual appointments available.