For Exterior Drainage you will find items such as : Exterior Drainage, Channel Guard, Sitedrain, Dimple Board, Hydro Channel. Low Profile Basin Kit, Corrugated Perforated Drain Pipe, Drain Sleeve. Midwest Foundation Supply sells Professional and Contractor Grade products. Whether your stopping in our location Kansas City, Missouri or shopping online, we are always here to help to get you the best product for your next foundation repair job.