How Do I Replace a Doorknob?
Give It a Go. Use a long screwdriver to remove the screws that hold the doorknob in place — they'll be tucked below the knob on one side of the door. Then, pull apart the entire doorknob assembly. Unscrew the strike plate on the side of the door, and slide out the latch (the metal bar that goes into the strike plate when the door is locked). Your new doorknob should come in a kit with all these pieces. Slide in the new latch first, then align both knobs on either side of the door and screw them in. If your new knob doesn't match up with the old screw holes, patch them, then pre-drill new holes for the new knob and screw it in. Finish by screwing in the new strike plate. Now voila you did it!