How to Fix a Soft Door Jamb

Find out how to fix a bathroom door jamb that has gotten soft from water exposure. Get step by step instructions for repairing it with wood filler. First, tap the door jamb with a screwdriver to find the soft areas. Open them up and carve them out. Then you can fill the cavities with a wood filler or a water putty. If you use water putty, after it sets, sand it, prime it and paint it with an exterior paint that will stand up to the dampness.