Clean garage door surface with pressure washer or hose. Use a brush to remove any loose paint or buildup.
Tape off edges, windows, and hardware with painter's tape to prevent bleeding.
Determine whether or not priming is necessary. If needed, apply primer to entire surface before painting.
Apply paint to inset panels and around trim using a 2-inch paintbrush. Using a paint roller, apply paint on all flat surfaces on garage door. Allow to dry according to suggested drying time listed on your paint product. Repeat process with second coat.
Should I sand the garage doors?Generally, Sanding is not necessary unless you have glossy garage doors. You will need to be sure that all the dirt and grime is removed so that finished paint looks as even as possible.