Dear James: Our window and door trim are looking dull, worn, and scratched. They are beyond just refinishing. What are the steps to removing and replacing the old wood trim myself? —Colleen W. Dear Colleen: It is surprising how much window and door trim can affect the appearance and style of an entire room. If you’re remodeling and want to change the decor of a room, this is the ideal time to select a radically different trim styling, color, and finish. Even homeowners who are inexperienced with woodworking should be able to remove the old trim and install new trim. With just some simple hand tools, you can make it look like a professional installation. Plan on taking your time to be sure every piece fits together properly. There’s no need to rush through the project, and you should treat each window and door as a separate, smaller project. One …