Close the exterior door and look for the largest gap around the door.
Fixing gap in front door.
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Measure the top jamb above the door using a tape measure.
Install weatherstripping along the top of the door if the new hinge screw does not fix the gap.
Apply one strip to the interior side of one of the doors positioning it so that it spans the gap between the two doors and overlaps the edge of the opposite door.
Draw in the jamb this is really just another version of the hinge adjustment described above.
If you have a large gap beneath the door use a wrap around door sweep.
If you have a large gap at the bottom of your door that may be helping the door to stay plumb.
Attach the strip to the door by driving in a 1 inch long screw every 12 vertical inches.
An easy solution if you have big gaps along the latch side of your doors they were probably prehung in their frames at the factory and installed as a unit.
Step 6 transfer the jamb measurement to weatherstripping.
By driving a long screw through the latch side of the jamb rather than the hinge side you can often draw in the jamb and give the door a little extra space.
They have long adjustable sides that can be moved up and down along the width of the door.
A gap between the bottom of the front door and the threshold is easily fixed with a door sweep.
This is the alternative to using a door sweep.
This is a simple solution to your problem.
Be careful not to overdo it and seal the door so that it can t settle with the rest of the house.
When the bottom of the sweep fills.
If the sun isn t shining brightly enough against the face of the door have a helper shine a flashlight along the edges of the.
Sometimes the gap is far too wide.
As long as the gap is even on an interior door it shouldn t be why a door isn t closing properly.
Door sweeps reinforce the seal between the bottom of the door and the door jamb meaning you get extra protection from dirt bugs moisture and wind.
This is what i particularly suggest for the front door to keep our.