A door seal fitting, such as for a garage door, may include a main body or mounting fitting; a cap, and the door seal itself. The mounting fitting has a back web or wall that is attached to a door post or door jamb. The cap seats on the mounting fitting to conceal the mounting hardware of the mounting fitting. The door seal is located in a T-shaped slot on the doorward end of the mounting fitting. It is secured by mechanical fasteners that are hidden behind the seal. The mechanical fasteners pass through a web of the mounting fitting and through a wing or internal leg of the cap. The fasteners are spaced along the length of the assembly to discourage axial shrinkage or shifting of the cap relative to the mounting fitting.