It can cost anywhere from $50 to $200 to install an interior door, depending on the type of door, the materials used, the contractor hired, and the region. Basic installation should include door frame repair or replacement if needed, adjusting jambs as necessary, securing the door in place, and trimming and finishing as needed. More complicated installations may also include painting or staining of trim pieces, caulking around the doorframe, and more.

It depends on the type of door, the materials used, and the region. As a general ballpark figure, it would cost somewhere between $50 and $200 to install an interior door. Labor costs will typically be in the range of $25 to $75 per hour.