Continuing with my garage builder from Hell. Repeating some background. The 20x20 garage built with a sloping driveway. When it rains (enter IRMA) water floods under the garage door and under the garage framing that's built on a slab. The idiot didn't install a drain! I have had 3 bids to fix the issues. Cut the concrete in front of the garage including 9 wide door, installing a channel drain piping the water away from the area , fix the concrete. I was floored at the prices from $2800-$3200. So I need input until I sue the Builder From Hell. Any ideas? Alternatives? Something DIY? Thanks folks.