Splash Blocks and Drainage
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Splash blocks, downspout extensions, gutters and yard drainage for keeping roof water away from your foundation. Every downspout should empty onto a splash block or extension that carries water several feet from the house, onto ground that slopes away; the model building code (IRC) calls for at least 6 inches of fall in the first 10 feet in most cases. Water that pools against the foundation leads to wet basements, mold and settling. Better still, send downspouts to a rain barrel or rain garden, or onto a lawn, never onto a neighbor's lot, a driveway or the street; some towns have stormwater rules about where runoff can go. Call 811 before digging drains. Companies below are commercial.
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Links last checked Oct 18, 2026.
| Site | whois | history | safety | sitesearch | Google AI Mode | Grok | Bing AI | |
|---|---|---|---|---|---|---|---|---|
| Drainage and stormwater guidance (start here) | ||||||||
| epa.gov - EPA Soak Up the Rain: disconnect and redirect downspouts | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| epa.gov (green infrastructure) - EPA: green infrastructure, rain gardens and permeable paving | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| epa.gov (mold) - EPA: a brief guide to mold, moisture and your home | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| epa.gov (rain barrels) - EPA: rain barrels | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| epa.gov (runoff) - EPA: polluted runoff (nonpoint source pollution) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| epa.gov (stormwater) - EPA: NPDES stormwater program (your town may have its own runoff rules) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| Codes and inspections | ||||||||
| 811beforeyoudig.com - Call 811 before digging a French drain or burying a downspout line | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| iccsafe.org - International Code Council: IRC grading and roof drainage rules | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| nachi.org - InterNACHI: find a certified home inspector to check grading and drainage | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| Gutters, downspouts and gutter guards (commercial) | ||||||||
| amerimax.com - Amerimax gutters, downspouts and splash blocks | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| englertinc.com - Englert gutters and metal roofing | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| gutterglove.com - Gutterglove gutter guards | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| gutterhelmet.com - Gutter Helmet | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| guttersupply.com - GutterSupply: gutters, downspouts and parts (on the old page) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| leaffilter.com - LeafFilter gutter guards | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| Drains, pipe and downspout extensions (commercial) | ||||||||
| adspipe.com - Advanced Drainage Systems: drain pipe and NDS catch basins (ndspro.com now goes here) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| amazon.com - Amazon: splash blocks and downspout extensions | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| homedepot.com - The Home Depot: splash blocks, downspout extensions and drain pipe | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| lowes.com - Lowe's: splash blocks and downspout extensions | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| menards.com - Menards | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| zurn.com - Zurn drainage | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| Splash blocks and precast concrete (commercial) | ||||||||
| all-starconcrete.com - All-Star Concrete: precast splash blocks, Texas (on the old page) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| gcpconcrete.com - GCP: stepping stones and precast, Tennessee (on the old page) | whois | history | safety | search | AI Mode | Grok | Bing AI | |
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