According to engineers 85% of wet basements can be made dry by improving the exterior drainage around your home. In extreme cases an interior drain tile system may be required. Interior drain tile systems are very invasive, destructive, and costly. This system consists of jack hammering your basement floor around the interior of your walls and installing a perforated pipe encased in gravel diverting water to a sump pump. ADS, Inc. will do an interior drain tile system only as a last resort to your water problem.