If the hinges are loose the door will sag. If this doesnt work you may decide to call a professional locksmith to help assist you. Got A Screw Loose Home Repair Home Repairs Repair If the screws are stripped out continue reading. How to fix a door that won t latch . The Fix A short term fix is to move the strike plate to align better with the stuck door latch. As a house settles door latches and strike plates sometimes become misaligned so doors wont latch shut. Lift the door out of position just a few inches to give you room. The fix is to simply tighten the screws. Remove a small amount and test the latch by closing the door. Step 1 How to fix a door that wont latch. One way is to remove the strike plate and file the inside to make it big enough to catch the latch. If the door does not open completely you can try shimming the latch to allow it to retract enough to open the door. Identify the door that is having trouble closing. The cause of the problem ...