Exterior Perimeter
Exterior Perimeter Waterproofing | Foundation Water Protection
When it comes to keeping water out of your basement or crawl space, stopping it at the source is the gold standard. Exterior perimeter waterproofing involves excavating around the outside of your foundation and applying protective barriers, drainage layers, and waterproof coatings directly to the exterior wall surface, preventing water from ever reaching the interior of your home. Keystone Foundation Repair provides complete exterior waterproofing solutions for residential and commercial properties across our service area.
What Does Exterior Perimeter Waterproofing Include?
A comprehensive exterior waterproofing system typically includes several integrated components:
- Excavation down to the foundation footing along the affected wall(s)
- Surface preparation: cleaning and repairing the exposed foundation wall
- Waterproof membrane application: a rubberized or cementitious coating applied directly to the wall
- Drainage board or dimple mat: a layer that allows water to flow down to the footing drain rather than press against the wall
- Perforated footing drain: installed at the base of the wall to collect and redirect water away from the foundation
- Backfill and surface restoration: restoring the grade and landscaping
This comprehensive approach addresses both water pressure and water infiltration at their origin, making it the most thorough waterproofing solution available.
When Is Exterior Waterproofing the Best Solution?
Exterior perimeter waterproofing is recommended when:
- The basement or foundation has significant active water intrusion
- Hydrostatic pressure from surrounding soil is pushing water through the wall
- The exterior of the foundation has cracks, deteriorated parging, or failed original waterproofing
- A comprehensive, long-term solution is desired rather than interior water management
- The property is being prepared for sale and a warranty-backed solution is preferred
Keystone Foundation Repair will assess your home’s specific conditions and recommend whether exterior waterproofing, interior drainage, or a combination of both is the most appropriate and cost-effective approach. We’re committed to giving you straight answers, not selling you more than you need.
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Want to Protect Your Foundation from the Outside In?
Exterior waterproofing is the most thorough defense against basement water. Contact Keystone Foundation Repair for a free inspection and a clear estimate with no pressure.