Drainage Solutions for Foundation Protection: French Drains, Grading, and More
Poor drainage is the #1 cause of foundation problems. Learn about French drains, surface grading, gutter extensions, and more.
Poor drainage is the #1 preventable cause of foundation problems. Water that pools near your foundation causes soil expansion, erosion, and hydrostatic pressure. Here are the most effective drainage solutions.
Surface Grading
$500 - $3,000The ground should slope away from your foundation at least 6 inches over the first 10 feet. This is the most basic and important drainage measure.
Essential — should be done first
Gutter Extensions
$100 - $500Downspout extensions carry roof water at least 4-6 feet away from the foundation. Simple, cheap, and highly effective.
High impact, low cost
French Drains
$1,500 - $5,000A perforated pipe in a gravel-filled trench that redirects subsurface water away from the foundation. Essential for homes with high water tables.
Very effective for subsurface water
Surface Drains (Channel Drains)
$1,000 - $3,000Collects surface water from driveways, patios, and low spots and channels it away from the foundation.
Good for surface water management
Sump Pump
$500 - $2,000Pumps water out of basements or crawl spaces. Essential for homes with persistent water intrusion below grade.
Essential for basements with water issues
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