What this covers
An entry door is usually replaced as a prehung unit: the slab, jambs, threshold, weatherstrip and hinges arrive as one piece, with sidelites or a transom if chosen. The installer removes the old door and frame, checks the subfloor and framing for rot, sets a sill pan, shims the new unit plumb and square so the door closes evenly on the weatherstrip, fastens through the jambs, insulates the gap, flashes and seals the exterior, and fits casing and brickmold. Locks and a deadbolt are bored or installed and keyed. Fiberglass, steel and wood each have trade-offs the company explains before you order.
When to call
- A door that drafts, sticks, sags or shows daylight at the edges.
- A rotted threshold or jamb bottom, often from a stoop that drains toward the house.
- Damage from a break-in, fire or storm.
- A dated entry you want to upgrade with glass, sidelites or a new style.
What to expect
- Measure and chooseThe rough opening, swing and jamb depth are measured, and material, glass and hardware chosen.
- RemoveThe old door and frame come out and the sill and framing are repaired.
- SetA sill pan goes in, the unit is shimmed plumb and square, fastened and insulated.
- Trim and hardwareThe exterior is flashed and sealed, casing fitted, locks installed, and the door tested with you.
Get a certified company
Look up a certified company by ZIP code. Every company's license, insurance and trades are verified before it is listed, and placement is never paid.
Questions people ask
Fiberglass, steel or wood?
Fiberglass resists dents and weather and can look like wood. Steel is strong and economical but can dent and rust at scratches. Wood is the classic look and needs its finish maintained, especially without a porch roof.
Can just the slab be replaced?
Yes, if the frame is sound and square. A new slab is hung on the old jambs, which saves money but keeps the old threshold and weatherstrip.
What is a sill pan?
A formed pan under the threshold that catches water that gets past the door and sends it back out. It is the detail that keeps the subfloor dry.
Related: Storm door installation · Patio door installation · Interior door installation · All siding, windows and doors
This page describes what the service involves. The company you hire sets the scope, the schedule and the price, and your contract is with that company. We verify credentials and collect reviews from real jobs. We do not guarantee any company's workmanship. Safety steps are general guidance. When in doubt, leave the home and call 911.