7 continue securing weather seal along the side trim.
Corner of garage door leaking.
When a new drain system is out of the question then try adding a layer of concrete to your garage in order to have the bottom gasket make a proper seal.
Check horizontal sills at the bottom of framed walls where they meet the floor.
Water in the garage might be a sign of leaking around old sill plates.
However in some instances the top corner of the door is the true culprit.
In fact it s extremely likely that you could solve the issue with just a few minutes of your time for a weekend or evening project.
The flexible material compresses when the door closes sealing the gap along the floor to keep out water dirt cold breezes and critters.
Awnings or sills stop water from getting behind the door so if you see leaking at the top of the door that s usually the culprit.
This is the challenge.
If these don t help contact a specialist to help you make the best decision about how to proceed.
Water coming in at the bottom of the door usually has to do with gaps between the concrete floor and the garage door.
The garage door bottom seal or door sweep is a long strip of rubber or vinyl that attaches to the bottom edge of the garage door.
This is usually caused by a leak somewhere.
Leaks around the sides of the door usually mean that a seal is damaged or missing.
Adding guttering to your garage can solve the problem if the rainwater that s seeping under the door is coming from the garage roof.
Bend the door seal at a 90 degree angle when you get to the trim corner and nail it about 1 inch from the ends of the top and side trim pieces.
Aside from the simplest solution of replacing an old torn seal with a new one there are other methods of keeping water from leaking through your garage door.
Install new gutters along the edges of the garage roof and.
Upper corners when a door leaks the most common suspect is the bottom corner of the unit.