Blog › October 19, 2026 · 5 min read

How long does it typically take to install an interior door?

A single interior door swap, done against an existing frame, is usually a half-day job for one person once the new door is on site. The timeline stretches when the frame is out of square, the opening needs reframing, or hardware and trim have to be matched or replaced. The honest answer is: it depends less on the door itself and more on the condition of what's already in the wall.

What actually determines the timeline

There are two very different jobs hiding under the phrase 'install an interior door.' The first is a slab swap: the existing jamb, hinges, and casing stay put, and only the door panel itself is replaced or re-hung. That's fast work — hang it, shim it, check the reveal, done. The second is a full pre-hung replacement, where the jamb, hinges, and sometimes the casing and shims all come out and go back in new. That takes longer because you're also squaring a frame inside a rough opening that may have shifted over the years.

South Florida homes add a variable most install guides don't mention: humidity-driven wood movement. Older homes with original wood jambs often have doors that have swollen, shrunk, or racked slightly out of square over decades of seasonal humidity swings. A door that looks fine in the opening can bind the moment you try to seat new hinges flush, and squaring that out adds real time to the job even on a single door.

Pre-hung vs. slab-only replacement

If the existing jamb is solid, square, and the hinges aren't stripped, a slab-only swap is the quicker and cheaper route. The installer removes the old door, transfers or re-mortises the hinges to the new slab, trims it to fit the opening, and rehangs it. Most of the time goes into fitting the door to the existing gaps rather than any complex carpentry.

A pre-hung unit is the better call when the jamb is damaged, rotted at the base, or badly out of plumb — which shows up more often on exterior-adjacent doors like those leading to a garage, laundry room, or lanai, where moisture gets in. Installing a pre-hung door means pulling the old jamb and casing entirely, checking the rough opening for square, shimming the new jamb plumb in both directions, and nailing or screwing it off before trim goes back on. It's more steps, more material, and more opportunity for the opening itself to need correction, which is why it runs longer than a slab swap.

• Slab-only swap: existing jamb reused, hinges transferred or re-cut
• Pre-hung replacement: jamb, hinges, and often casing all new
• Reframing the rough opening: rare for interior doors, but adds the most time when needed

What slows a job down

The biggest time sink is an opening that isn't square. Houses settle, slab foundations shift slightly, and in older South Florida stock it's common to find an opening that's out of plumb by enough to require real shimming and trimming to get a door that swings freely and latches without dragging on the carpet or tile. That correction work can't really be estimated sight unseen — it depends on how far off the frame actually is once the old door and trim come down.

Hardware changes add time too. Swapping a hinge-and-knob door for one with a different handing, a different lockset bore, or a pocket-door conversion means more than hanging a slab — it can mean new mortises, a new strike plate location, or building out a pocket frame inside the wall. Matching existing baseboard and casing profiles is another common delay, especially in older homes where the original molding is no longer a stock size and has to be special-ordered or hand-matched.

Paint and finish work is its own separate step. A pre-primed slab still needs paint to match the rest of the house, and in humid South Florida conditions, allowing proper dry time between coats matters more than it does in drier climates — rushing a finish coat in heavy humidity is a common reason doors end up tacky or uneven.

Condo and HOA considerations

If the door is inside a condo unit, building rules can affect the schedule more than the install itself. Many associations require a reserved elevator or loading-dock window for bringing a pre-hung door and jamb material up, and some restrict work hours or require a certificate of insurance on file before a crew can start. None of that changes how long the physical install takes, but it does mean the job may need to be scheduled around building access rather than just contractor availability.

Interior door swaps generally don't require a permit, since they're not structural and don't touch electrical or plumbing. The exception is when the job involves widening an opening, removing a load-bearing element, or converting a door for fire-rating purposes in a multi-family building — any of that moves into permitted work and a different trade, and that's work we refer out rather than attempt without the proper scope.

What a straightforward visit looks like

For a standard single-door replacement where the frame is sound, expect the visit to cover: removing the old door and hardware, checking the opening for square and plumb, fitting and hanging the new door (slab or pre-hung), installing or transferring hardware, and adjusting the swing so it latches cleanly without rubbing. If casing needs to be reinstalled or caulked, that's additional time on top of the hang itself.

Gold Hands Miami prices door work by labor hour, with a two-hour minimum per visit, because the honest time range for a door job depends entirely on what the opening looks like once the old door comes off — not something that can be nailed down accurately without seeing it. We quote door jobs by phone or from photos of the opening and the door itself, which usually gives us enough to spot whether we're looking at a quick swap or a frame correction before anyone shows up.

Frequently Asked Questions

Can an interior door be installed in a single visit?

Usually yes, if the existing frame is square and no reframing is needed. Jobs that involve fixing an out-of-plumb opening, matching custom trim, or converting to a different door type can run longer or need a follow-up visit for paint.

Do interior doors need a permit in Miami-Dade or Broward?

A standard swap, slab or pre-hung, generally doesn't require a permit since it's not structural. If the job involves enlarging the opening or touches a fire-rated assembly in a condo, that moves into permitted work we refer out to the appropriate trade.

Why does my old door stick or not close right?

In older South Florida homes it's usually humidity-driven wood movement in the jamb or door itself, or hinges that have loosened over time. Sometimes planing the door edge solves it; other times the frame has gone out of square and needs to be reset.

Is a pocket door install the same timeline as a standard door?

No — a pocket door conversion means opening the wall to install a frame and track system inside the stud bay, which is a different scope than hanging a hinged door and takes longer because of the framing and drywall work involved.

Should I buy the door myself or have the contractor supply it?

Either works. If you supply the door, confirm the exact rough opening size and whether it's pre-hung or slab-only before buying, so it actually fits the existing frame without extra trimming or returns.

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