Interior for $10K or exterior for $35K? Today: the great waterproofing showdown. It's not about better vs worse—it's prevention vs management. Finding the right strategic fit for YOUR home.
Two Philosophies:Exterior: Stop water before it touches foundation (prevention)Interior: Manage water after it enters (redirection)
Interior Waterproofing:
When Interior Works:
Pros: 40-60% cheaper, minimal disruption, handles sub-slab pressureCons: Foundation still gets wet, relies on pump maintenance
Exterior Waterproofing:
When Exterior Works:
Pros: 20-30 year protection, dry foundation (not just basement), minimal maintenanceCons: High cost, massive yard disruption
Hybrid Solution (Best Value):East York case: $16,600 total, $15K after subsidy
Decision Checklist:
Critical Question:Even if walls are protected, water still pushes UP from below. Is interior drainage essential regardless?
Protect strategically with comprehensive basement waterproofing tailored to your situation, proven interior drainage and sump pump management systems, and robust exterior foundation membranes and prevention systems.
Guide: Interior vs Exterior: Which System is Best?
DGI: 647-483-2455 (Free assessment)