What door trim replacement costs
| Job | Typical cost |
|---|---|
| Door trim replacement, per door | $150–$250 |
| Full published range, per doorway Most land around $260 | $120–$420 |
| Casing, installed Per linear foot | $5–$10 |
| 2026 calculator estimate Homewyse, per linear foot | $7.92–$12.14 |
| Pine or poplar casing Installed, per linear foot | $4–$9 |
| Oak or prefinished casing Installed, per linear foot | $6–$12 |
Like most trim work, the price per door drops as the number of doors rises, because setup, cutting and cleanup are shared. Trim for a whole floor is usually priced together with baseboards.
Casing materials
- MDF. Pre-primed, smooth and the least expensive. It paints well but swells if it gets wet, so keep it out of bathrooms that stay damp.
- Finger-jointed pine. Pre-primed real wood made from short pieces. A good default for painted trim.
- Poplar and clear pine. For painted trim where a crisper profile matters.
- Oak and other hardwoods. For stained trim. More expensive and slower to cut and fit.
- PVC or composite. For exterior doors, where wood casing rots at the bottom; see wood rot repair.
Styles: mitered or butted
Mitered casing meets at 45-degree corners and is the standard in most homes. Butted casing uses square cuts, often with a wider head piece or corner blocks, and suits craftsman and older homes. Butted styles are more forgiving on walls that are out of square. Matching the profile already in the house matters more than either choice: a single door with different trim stands out.
How casing is replaced
- Score the paint and caulk lines with a utility knife so the wall and jamb do not tear.
- Pry the old casing off gently, working from the bottom, and pull the remaining nails.
- Mark a reveal of about 3/16 inch on the edge of the jamb so the new casing sits back evenly.
- Cut and nail the side pieces and the head, gluing the mitered corners.
- Fill the nail holes, caulk the edges to the wall, then prime and paint.
What adds to the price
- Painting. Many trim quotes stop at installation. Ask whether filling, caulking and paint are included.
- Both sides. A doorway has casing on each side; quotes may count one or both.
- Wall damage. Old casing often takes paint and drywall paper with it, which needs patching.
- Out-of-plumb jambs. If the frame itself is loose or split, fix that first; see door frame repair.
If the doors are being replaced as well, do the trim at the same time; see interior door replacement cost.
Common questions
Can you replace door trim without replacing the door?
Yes. Casing is nailed to the face of the jamb and the wall, and comes off without disturbing the door or the frame.
How much trim does one door need?
About 17 linear feet per side for a standard interior door: two sides of roughly 7 feet and a head of about 3 feet, plus waste for the miter cuts.
Should door casing match the baseboards?
It should match in style and finish. Casing is usually slightly thicker than the baseboard so the baseboard can butt neatly into it.
Related guides
Compiled from published 2026 national cost data (HomeGuide, Homewyse and trim contractor price guides). We update these figures as we complete jobs.