A door gap resulting in light under the door or peeking around the edges of the door.
Gap under new front door.
Open the door and place a wooden block or hardback book under the outer corner of the door to hold it in place while you work.
Be careful not to overdo it and seal the door so that it can t settle with the rest of the house.
Place the sweep at the bottom of the door and align the sweep edge so that it blocks the door gap.
Water leaking from the top of the door frame.
As long as the gap is even on an interior door it shouldn t be why a door isn t closing properly.
A visible door gap between the door and door frame.
If you have a large gap at the bottom of your door that may be helping the door to stay plumb.
A drafty door with chilly drafts air blowing through your entryway.
Pilot hole the marks.