The math nobody does
A 2,500-square-foot roof in a two-inch storm sheds more than 3,000 gallons of water. Every gallon exits through your downspouts — which means your downspouts are aiming a fire hose, and placement decides what it's aimed at.
Builders often place drops where they're easiest to install: at corners, straight down, discharging right at the slab. On Gulf-Coast clay soil, that's the single most damaging default in residential drainage.
What bad placement does over time
Clay soil swells when saturated and shrinks when dry. A downspout dumping at the foundation runs that cycle at one concentrated spot, season after season — differential movement at the slab edge is exactly how foundation problems begin. The repair bills for that start five figures north of what correct downspout work costs.
Above ground, the symptoms show up faster: mulch washed out of the same bed after every storm, brick splashback stains at ground level, and soggy spots that never dry.
What good placement looks like
Drops positioned where the roof concentrates water (valleys, long-run midpoints) — not just where corners happen to be. Discharge carried past the beds with splash blocks or extensions, following your lot's actual grade. And enough capacity: oversized 3x4-inch drops on big roof planes move roughly twice the water of standard ones.
This is drainage design, and it's part of every quote we write. We walk the grade around your home before we put drop locations on paper.
The Takeaway
Gutters get the attention; downspouts do the protecting. If yours discharge at the slab, fixing that is one of the cheapest high-value projects on your house.
Ready to act on this? Start with our downspout installation service — or go straight to a free on-site estimate.