Where Does Rainwater Go After It Hits Your Roof? Rainwater should not simply fall anywhere around your house. Without proper gutters, downspouts, and drainage planning, water can damage walls, foundations, walkways, landscaping, and nearby areas. A beautiful house can still become a maintenance problem if rainwater is not properly controlled. At WallPro Systems & Construction Inc., we remind homeowners to plan drainage early. Why Gutters and Downspouts Matter Gutters collect