Egress Window Installation Timeline Colorado

How Long Does Egress Window Installation Take in Colorado?

If you're planning to convert your Denver basement into a bedroom, guest suite, or living space, an egress window isn't just a nice upgrade—it's a legal requirement. Colorado building code mandates that any bedroom below grade must have an emergency exit that meets specific dimensions and accessibility standards. But before you commit to the project, you probably want to know: how long will this actually take?

At Affordable Egress Co., we've been installing egress windows across the Denver metro and Front Range since 1999, and we can tell you that most residential installations are completed in a single day. That's right—from the initial concrete cutting through the final inspection-ready installation, we typically get the job done before sunset. However, the complete timeline from start to finish involves several phases worth understanding.

The Pre-Installation Phase: Permits and Planning (1–2 weeks)

Before any drilling or cutting begins, you'll need to secure the proper permits from your city or county. Denver and surrounding jurisdictions take basement egress seriously, and rightfully so—these windows are life-safety features that emergency responders rely on.

Here's what happens during this phase:

• Free estimate and site assessment: We evaluate your basement foundation, soil composition, and existing window openings. Colorado's Front Range soils vary significantly—from clay-heavy areas in Denver to more rocky, compacted soil in the foothills—and this affects both installation complexity and cost.
• Permit application: We handle the technical specs, but you or your contractor will file with your local building department. Denver typically processes egress permits within 5–10 business days, though this can vary by jurisdiction.
• Plan review: The city checks that your planned window meets code requirements: minimum dimensions (typically 5.7 sq ft of net clear opening, with no side less than 20 inches), proper well depth, drainage, and visibility.

Pro tip: Don't skip the permit process. Unpermitted egress windows won't hold up during home inspections, refinancing, or insurance claims—and Denver inspectors regularly catch unpermitted work.

Installation Day: What to Expect (4–8 hours)

This is where Affordable Egress Co. shines. Once you have your permit in hand, we schedule your installation. On the day of work, here's the typical sequence:

1. Site preparation (30 minutes): We protect your basement contents, set up dust containment, and mark the cutting area based on permit specifications.
2. Concrete cutting (1–2 hours): Using specialized equipment, we cut through your foundation wall. The time varies depending on wall thickness (Denver basements typically range from 8–12 inches) and reinforcement. Colorado's freeze-thaw cycles can make concrete harder, requiring more cutting time than in warmer climates.
3. Frame and window installation (1–2 hours): We install the structural frame, set the egress window unit, and seal everything for waterproofing. This is critical in Colorado, where snowmelt and spring runoff create hydrostatic pressure against below-grade walls.
4. Window well installation (1–2 hours): We position and secure the metal or plastic egress well outside, ensuring proper slope for drainage away from your foundation—essential in our Front Range climate.
5. Final inspection prep (30 minutes): We clean up, remove dust containment, and make sure everything is ready for the city inspector.

Most days, you're back to normal basement use by evening.

Post-Installation: Inspection and Handoff (1–2 weeks)

After installation, the city will schedule an inspection—typically within a week or two. The inspector verifies that the window meets minimum opening dimensions, operates freely, has proper egress well construction, and complies with drainage requirements.

Once you pass inspection, you receive a certificate of compliance. This is your proof that the bedroom conversion is legitimate and code-compliant—important documentation for future sales, refinancing, or insurance purposes.

Total Project Timeline: 2–3 Weeks

From your first call to final inspection sign-off, plan for two to three weeks in most cases. The actual installation day is fast—we pride ourselves on efficiency and minimize disruption to your home. The wait happens during permitting and inspection scheduling, which is outside anyone's control.

The good news? Colorado's mild weather windows (spring through fall) are ideal for egress installation. If you're planning a basement bedroom conversion, starting the process in March or April gives you the best chance of completing everything before winter weather arrives.

Ready to add a legal, code-compliant egress window to your Denver-area basement? Affordable Egress Co. offers free estimates and handles the entire process—permits, installation, and inspection coordination. We've served the Front Range for over two decades because we deliver quality work on time, every time. Reach out today to schedule your assessment and get started on your basement transformation.