When it rains, one side of my garage floods. If it's just a light rain, it doesn't happen, but a steady or hard rain will do it because the water doesn't have time to drain off without branching out to low spots. The covered walkway next to it isn't wet and the planting area between the walkaway and next to the flooded area also isn't wet. So the water is coming in from the garage door area in the spacing cracks in the concrete. So I realize that side of the garage has probably sunk a bit and the main problem is that it's now lower than the concrete outside the garage, but it's pretty expensive to get the house jacked up and I can't do that myself.
Have any of you had any success filling the spacing cracks with anything to keep water from flowing in them? If so what did you use?