Door Installation Timeline: Day-by-Day Reality

Before day one: ordering and lead time

The clock most homeowners track starts when the crew shows up. The clock that actually matters starts when the door is ordered. In-stock steel and fiberglass slab doors can be installed within a week or two of measuring, but a pre-hung unit in a specific size, glass package, or paint color is often special-order and can take 3-8 weeks to arrive.

Wood doors, custom sizes, and impact-rated glass for coastal codes push lead times longer, sometimes 6-12 weeks. Measure and order early if your project has a deadline, this is the single biggest source of schedule slippage in a door project.

• Measure + material selection: same day to 1 week
• In-stock steel/fiberglass slab: 1–2 weeks to install after ordering
• Special-order pre-hung unit (specific size, glass, finish): 3–8 weeks
• Custom wood door or impact-rated coastal glass: 6–12 weeks

Day 1: Old door removal and opening prep

Removing the old door and frame takes 1-3 hours for a straightforward single door, longer if there's exterior brick mould, storm door hardware, or old caulk and paint layers to clear away. This is the moment hidden problems surface.

Once the old jamb is out, the crew checks the rough opening for square, level, and plumb, and inspects the sill and framing for rot or water damage. Sill and framing repair is the most common source of change orders and added time in a door project, and it's rarely visible until the old unit is out.

• Old door and frame removal: 1–3 hours for a standard entry door
• Rough opening check (square, level, plumb): 30 minutes to 1 hour
• Minor sill or jamb repair: 1–3 hours if caught early
• Extensive framing/sill rot repair: half a day to a full day, sometimes pushes install to the next day

Day 1 (continued): New door install

Setting a pre-hung door, shimming it square and plumb, fastening it, and applying flashing tape and sealant typically takes 2-4 hours for a single entry door once the opening is confirmed sound. Sliding and French patio doors take longer, often a half to full day, because of their size and multi-panel alignment.

Threshold and weatherstrip adjustment happens at the end of install, this is what actually determines whether the door seals well against drafts and water for years.

• Single entry door (pre-hung) install: 2–4 hours
• Sliding or French patio door install: 4–8 hours
• Storm door add-on: 1–2 hours
• Interior prehung door: 1–2 hours each

Days 2–3: Trim, hardware, paint, and finish

Exterior trim (brick mould) and interior casing get cut and installed after the door is set and sealed, often the same day but sometimes scheduled as a separate visit if caulk or sealant needs to cure first. Hardware (locks, handles, hinges) is typically installed same-day.

If the door needs field paint or stain rather than a factory finish, that adds a separate visit and cure time, painted doors need 24 hours minimum between coats, stained and clear-coated wood doors can need 2-3 days for a full finish schedule.

• Exterior trim/brick mould install: 1–3 hours
• Interior casing install: 1–2 hours
• Hardware install (locks, handle sets, hinges): 30–60 minutes
• Field paint (per coat): 24 hour cure minimum
• Field stain and clear coat on wood: 2–3 days for full schedule

Typical total by project type

These are professionally installed timelines once the door is on site. Add the ordering lead time above on top of these numbers for a full project timeline.

• Single entry door swap, in-stock unit, no framing issues: half a day
• Entry door with sidelights or transom (new framing): 1–2 days
• Sliding or French patio door replacement: 1 day, plus a second day if trim/paint is field-finished
• Whole-home exterior door replacement (3-5 doors): 2–4 days
• Custom wood door with field finish: 3–5 days including finish cure

Final walkthrough and what actually causes delays

A proper walkthrough checks that the door latches without slamming, the deadbolt throws smoothly, the threshold doesn't gap, and there's no daylight visible around the weatherstrip. Backordered doors and glass inserts top the delay list, followed by framing and sill repairs discovered on day one, then finish cure time that can't be rushed.

• Door or glass insert backordered mid-project
• Rough opening out of square, requiring re-shimming or reframing
• Sill or jamb rot discovered after old door removal
• Paint or stain cure time (can't be shortcut without a soft, easily damaged finish)
• Weather delays for exterior work in active rain or extreme cold