Comment: We had a crawlspace that flooded when it rained. There were a couple of occasions when two to three inches of standing water was in our crawlspace. Reed's Sprayfoam gave the cheapest of two bids to solve the problem. They dug a trench around the interior perimeter of the crawlspace . Perforated pipe was installed. A heavy white sheet was laid on the bare ground. It went up the piers and the exterior walls of the crawlspace. The crawlspace was not at ground level, which was one of the problems that produced flooding. Only about a foot of the house foundation, including the vents, was above ground level. The waterproof sheet was carried up the wall to just below the foundation vents. The vertical part of the sheet and foundation were coated with a rigid closed-cell foam up to the floor joists. Above that point an open-cell foam was used to allow the perimeter wood to breath and dry out. This closed-off the crawlspace vents. A dehumidifier was installed. The condensate from it, as well as the water flowing into the perforated pipe through the foundation, was directed to a sump pump. The output from the sump pump was piped through the foundation into a drain pipe that carried water from downspouts away from the house. As a final measure, the wood floor joists that had started to show a lot of various types of mold and mildew and dry-rot was treated with a penetrant that killed it and preserved the wood.
There was a problem of water flowing in on top of the waterproof sheet after the first crew left. I called to have the problem corrected. Even though the company was about a five-hour one-way drive from us, a man, David Runyon, was dispatched to correct the problem. He corrected the problem within an hour or two.
Based on my personal experience, I would have no problem at all recommending Reed's Sprayfoam. Their employees were curteous and considerate. The only crawlspace access was through the floor inside our house. Care was taken to keep the floor clean. We had almost no cleanup to do when they left.