Window Replacement Timeline in Colorado

Replacing one window takes 30 minutes to 2 hours for a professional crew almost anywhere, but the timeline that matters more to Front Range homeowners is what happens after a hailstorm: contractor backlogs, permit timing, and HOA design review can stretch a project that should take days into a wait measured in weeks.

How long does one window take?

A standard double-hung or casement window replacement takes 30 minutes to 2 hours once a crew is on site and the opening does not need repair. Bay, bow, or arched specialty windows take longer, a half day per unit in most cases, due to their size and custom fabrication.

How long does a whole-house replacement take?

Replacing 1 to 3 windows takes 1 to 4 hours in a single visit. A project covering 4 to 10 windows takes 1 to 2 days. A full home's worth, 10 to 20 or more windows on a standard Front Range two-story, runs 2 to 4 days. Multi-story homes and projects that include storm-damaged frame repair extend that range.

Does hail season create a contractor backlog?

Yes, significantly. After a major Front Range hailstorm, window, roofing, and siding contractors can see months of backlogged work from insurance claims across an entire metro area at once. Homeowners who need windows replaced right after a hail event should expect to book weeks to months out rather than the few-day lead time available in a quiet season.

How far ahead should you book an installer?

In a normal season, 1 to 3 weeks of lead time is typical for scheduling in the Denver metro. In the weeks immediately following a significant hailstorm, book as soon as your insurance claim is approved, since reputable contractors fill their schedules fast and the wait can stretch to 2 to 3 months during peak claim season.

Does a permit add time?

A like-for-like replacement that most Front Range jurisdictions treat as permit-exempt adds no meaningful time. A project that changes window size, adds an opening, or brings a bedroom window into egress compliance requires a permit and inspection, which adds anywhere from a few days to a couple of weeks depending on how busy the local building department is.

Does an egress window take longer because of code?

Yes. Bringing a bedroom or basement window into compliance with Colorado's egress requirements, minimum net clear opening, width, height, and sill height, sometimes means enlarging the rough opening, which is framing work in addition to the window install itself. That combination adds several days to a week compared to a simple same-size swap.

Does HOA design review add time before work starts?

It can. Many Front Range HOAs require submitting the window style and color for approval before installation, and some architectural review committees meet on a set monthly schedule rather than approving on demand. Submit for HOA approval as soon as you decide on a product, well before you schedule the installer, so the two timelines run in parallel instead of one delaying the other.

Can windows be replaced in Colorado winter weather?

Yes, reputable installers work through Colorado winters, but very cold temperatures, high wind, or an active snowstorm can pause work for occupant comfort and to let caulk and sealants cure properly. Expect a slightly longer window of flexibility in scheduling during December through February compared to a mild fall week.

How does snow or a sudden temperature drop delay installation?

A same-day drop of 30 to 40 degrees, common on the Front Range, can force a crew to pause mid-installation if sealants will not cure properly in the cold, or if wind makes handling large glass panels risky. Installers experienced with Colorado's swings plan buffer days into a multi-window project for exactly this reason.

Does the home's age affect the timeline?

Older homes, especially those built before the 1980s, more frequently have rotted framing, out-of-square openings, or lead paint that requires special handling around the window opening, any of which adds time once the crew opens up the wall. A pre-project inspection of the framing helps set a realistic timeline before work begins rather than discovering issues mid-installation.

Do insurance claims slow the timeline?

Yes, in two ways: the adjuster inspection and claim approval happen before work can start, and the contractor backlog after a widespread hail event affects insurance and out-of-pocket customers alike. Get your claim documented and approved as early as possible, and ask your contractor for their current lead time before assuming a quick turnaround.

Should you replace windows before or after listing?

Before, if the windows are visibly failed, fogged, or drafty, since that gives a buyer's inspector nothing to flag and lets you document the upgrade in your disclosure. If the windows are functional but simply older, pricing the home accordingly and letting a buyer decide is the better move, rather than spending on a full replacement that will not fully return its cost. See pricing your Colorado home to sell for how condition items like this affect list price.

How should you prepare a room before installers arrive?

Clear furniture, blinds, and window treatments from each window at least a few feet back, remove fragile items from nearby shelves since the work involves some vibration and dust, and plan for a few hours of open walls or plastic sheeting per window while the old unit comes out and the new one is sealed in.

How long after a hailstorm should you expect to wait?

Immediately after a widespread Front Range hailstorm, expect an insurance adjuster visit within 1 to 3 weeks depending on claim volume, followed by a contractor lead time that can run 4 to 12 weeks during the busiest post-storm stretch. Homeowners who call a contractor the same week as the storm, rather than waiting for the claim to fully process, tend to land earlier spots in the schedule.

Does the type of window affect the timeline?

Standard sizes in common materials like vinyl are in stock or on a short factory lead time of 1 to 3 weeks in most cases. Custom sizes, specialty shapes, and less common finishes can carry factory lead times of 4 to 8 weeks before installation day even arrives, which matters when planning a project around a listing date. Ordering early and locking in a firm installation window protects a seller's timeline if photos and a listing date are already set.

Where to go next

• Best Window Replacement Companies in Denver
• Why Windows Are the Most Underrated Upgrade in Colorado Real Estate
• Colorado Hail and Roof Costs
• Preparing and Adding Value Before Selling
• Pricing Your Colorado Home to Sell
• Search every home for sale in Colorado

Talk to the Kenna Real Estate Group

The Kenna Real Estate Group helps Front Range sellers time window and other repair projects around a listing date, and helps buyers understand what a home's current windows mean for their offer. Call or text 303-955-4220. A live person answers. Not a robot, not a phone tree. Ready to see the market? Search every home for sale in Colorado.

For scheduling and installation, a Front Range crew experienced with local permitting and egress rules, such as window installation and replacement services, can give you a realistic timeline for your specific project; you are free to use any licensed installer.