If the screws in your door hinge have become loose and frequently require tightening or have been tightened so often that they no longer stay securely in place causing the door to sag most likely the wood sections the stiles that frame the inside of the door need reinforcement.
How to fix a hollow core door hinge.
First these doors are hollow.
The upper hinge screws pulled out and will not stay in now.
Over the years windows start to stick.
The best hinges for hollow core doors are still the base molding spring stops as seen on the door in this foreground and not the hinge pin stops as seen on the two doors in the background.
Next let the insulation dry completely before trimming away the excess with a knife.
Hollow core doors consisting of a lightweight wood frame covered with composite veneer are affordable around 50 per door compared to 150 to 350 for a solid hardwood and paintable so you.
The wrong way is a temporary fix not cool.
If this is the case fixing the door is only a short term solution.
Ultimately your problem cannot be fixed with a screwdriver.
Hinge screws pulled out of hollow core door.
Door stiles the wooden side frames inside the door aren t very deep which is part of the reason hinges become.
Here and there plaster around doors and windows develops cracks and your floorboards may begin to pop and crack.
Screws magically work themselves loose over the years.
If you have a centering hinge drill use the hinge as a template and the finish repair will be better than new and last for years.
My house was built around 1960.
To repair a damaged hollow core door start by cutting away any loose or broken wood around the damage using a utility knife.
When a hollow core door gets damaged repair rather than replacement is possible if you can overcome the two issues that make such a repair difficult.
If your door rubs near the top or drags on the floor use a screwdriver not a drill to tighten the screws.
The doors are the original doors.
Then pack the hole or crack with paper towels and fill it in with expanding foam insulation.
Another hint is to use a long screw in one of the holes in the top most hinge long enough to penetrate the stud.
First fix the door then look into foundation repair.
There is nothing behind the mdf or hardboard surface skin of the door for a patch to adhere to or to provide support to prevent subsequent cracking of the patch.
Fix it the right way not the wrong way.
Tighten the hinge screws.