Replacing an interior door is one of the more budget-friendly home improvements, with most homeowners spending between 150 and 600 dollars per door installed in 2026, including materials and labor. The wide range reflects the difference between a basic hollow-core slab and a solid-wood or specialty door, as well as whether you are swapping a slab into an existing frame or installing a full prehung unit. A whole-house door refresh of eight to twelve doors typically lands between 1,500 and 5,000 dollars.
A slab door is just the door panel itself, designed to be hung on an existing frame and hinges. Slabs cost less, from about 40 to 250 dollars for the panel, and are ideal when your frames are in good shape. A prehung door comes already mounted in its own frame with hinges attached, which makes installation more reliable but costs more, generally 100 to 400 dollars for the unit before labor. Prehung is the better choice when the existing frame is damaged or out of square.
Hollow-core doors are the most affordable and fine for closets and low-traffic rooms. Solid-core doors cost more but offer better sound insulation and a more substantial feel, making them popular for bedrooms and bathrooms. Solid-wood and French or glass-panel doors sit at the top of the price range. Special sizes, pre-finishing, and decorative hardware all add to the total.
Professional installation typically runs 75 to 200 dollars per door for a straightforward swap, and more for prehung units that require shimming, leveling, and trim work. Carpenters may charge an hourly or per-door rate, and replacing trim or adjusting a warped frame increases the price. Hanging a slab on existing hinges is the cheapest scenario; cutting a new opening is the most expensive.
You can reduce costs by reusing existing frames and hardware where possible, buying standard sizes rather than custom, and replacing several doors in a single visit to spread the trip charge across the job. Painting or staining doors yourself instead of buying pre-finished units is another easy saving. Handy homeowners can install slab doors themselves with a drill and a chisel, reserving professional help for prehung installations where precision matters most.
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