Replacing an interior door can vary significantly in cost based on factors such as the type of door, materials used, and labor expenses. Solid wood doors tend to be pricier than hollow-core options, and custom sizes or styles can further increase the budget. Additionally, consider the costs associated with hardware, installation, and any necessary modifications to the door frame. Maintenance and energy efficiency are also important aspects to think about when making your choice. Curious about the best options for your home? Ask Improvi.ai for personalized guidance!