Exterior Foundation Waterproofing in Cary, NC
Stopping water before it ever reaches the footing. Priced for Wake County homes on Cecil-Appling Sandy Clay Loam hardpan.
How much does exterior foundation waterproofing cost in Cary, NC?
Exterior Foundation Waterproofing in Cary, NC costs $5,500 to $11,500 for a typical home. Exterior foundation waterproofing in the Raleigh area costs $4,000 to $15,000. Crews excavate to the footing, apply a membrane coating, install French drains and footing drain tile, and regrade the lot so runoff moves away from the crawl space.
Cary soil and why crawl spaces fail here
Cary's Cecil-Appling complex carries a sandy surface horizon over a stiff clay hardpan. Rain infiltrates the first several inches quickly, then stalls on the hardpan and spreads out under the home as a shallow perched table that never fully drains between storms.
Executive-scale footprints in Preston, Lochmere, and Amberly enclose enormous volumes of ground vapor. That vapor condenses on cool ductwork and drives moisture content in the subfloor above 18%, which shows up as cupped and crowned hardwood in formal living areas.
Cary homeowners typically hold their homes long term and expect documented humidity readings before and after work, not just a plastic liner.
Scope included in Cary
- Excavation to footing depth with membrane or elastomeric coating
- Footing drain tile bedded in washed stone with filter fabric
- Downspout extensions and yard drains routed to daylight
- Positive grading of six inches over the first ten feet
Signs you need this
- Water entering through the block wall, not the floor
- Downspouts dumping beside the foundation
- Negative grade sloping toward the house
Neighborhoods we cover in Cary
Other services in Cary
Exterior Waterproofing in nearby Triangle towns
See the full Cary crawl space guide or the Triangle-wide exterior waterproofing overview.
Exterior Waterproofing in Cary: common questions
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