How Long Does a Cut-Out Window Installation Take Start to Finish?

One of the most common questions homeowners ask before booking a cut-out window installation is: "How disruptive is this going to be?" The honest answer is less than you'd expect. Here's the real timeline from first call to finished project.
The Full Timeline at a Glance
| Phase | Typical Duration |
|---|---|
| In-home assessment & quote | Same week |
| Permit application & approval | 5–15 business days |
| Installation day(s) | 1–3 days |
| Stucco cure time | 3–7 days |
| Final inspection | 1–3 days after completion |
| Total elapsed time | 2–4 weeks |
Phase 1: The Assessment (Day 1)
A free in-home walkthrough typically takes 30–60 minutes. The contractor assesses the wall, confirms load-bearing status, measures the opening, and reviews window options with you. A fixed-price quote is usually provided the same day or within 24 hours.
Phase 2: Permits (1–3 Weeks)
This is the longest phase and the one most homeowners underestimate. Every city in Maricopa County (Phoenix, Scottsdale, Tempe, Chandler, Gilbert, Mesa) requires a permit for a new window opening. Permit review times vary: Phoenix and Scottsdale often have 10–15 business day review queues, while smaller cities like Gilbert or Queen Creek can turn permits around in 5–7 days.
A reputable contractor handles the permit application entirely. You shouldn't have to make a single call to the city.
Phase 3: Installation (1–3 Days)
Once the permit is in hand, the actual installation moves quickly. A standard single-window cut-out on a wood-frame stucco home is typically a one-day job for an experienced crew: demo the interior drywall, frame the opening, install the header, set the window, flash and seal, patch the exterior stucco, and finish the interior. Larger projects (multiple openings, sliding door cut-outs, or block wall construction) may run two to three days.
Your home is livable throughout. The opening is never left exposed overnight; the window is installed and weather-sealed before the crew leaves each day.
Phase 4: Stucco Cure & Final Inspection
The stucco patch needs 3–7 days to cure before it can be painted. The city inspector will schedule a final inspection to verify the structural work and window installation meet code. Once the inspector signs off, the permit is closed and the project is complete.
The Bottom Line
From the day you sign a contract, plan for 2–4 weeks total, mostly waiting on the permit. The actual disruption to your home is 1–3 days. Most homeowners are surprised by how fast the physical work goes once the permit is approved.