Using a standard storage facility threshold as an example our concrete repair process would include the following fundamental steps.
Garage door concrete threshold repair.
Position the aluminum threshold against the outer edges of the door jambs so the holes in the threshold are 1 inch either way of the existing concrete anchors.
The driveway is asphalt butting up to the concrete threshold entering the garage.
Place forms as needed around the perimeter of repair areas.
Cut the old threshold with a back saw or a reciprocating saw.
2 mix a moderate amount of liquid detergent with 1 quart of water in a plastic.
This is important so that you will know the desired length that is necessary to cut the garage door threshold.
Begin by removing the existing threshold from your door.
They did remove it and replace the concrete but we don t know if they reinforced it with rebar or not.
Drill and place rebar reinforcement rods if needed.
Install the garage door threshold position the garage door threshold on the door according to the manufacturer s directions.
Remove damaged concrete in the repair areas.
Use a pencil to make a mark on where to cut the garage door threshold.
To cut a metal threshold use tin snips and a saw equipped with a metal cutting blade to make the cuts.
We had it repaired by a concrete resurfacing company once and it didn t even last the first winter.
The concrete threshold or whatever its called is broken and crumbling.