Waterproofing Costs
Calculate and compare the costs of interior and exterior waterproofing solutions.
Understanding Waterproofing Costs
The cost of waterproofing your basement depends on several factors, including the method you choose (interior or exterior), the size of your basement, and the severity of your water issues.
Exterior waterproofing tends to be more expensive because it requires excavation around your foundation, but it addresses the root cause of water infiltration. Interior waterproofing is less invasive and typically less expensive, but focuses on managing water that has already entered your basement.
Waterproofing Cost Calculator
Use our interactive calculator to estimate the cost range for your basement waterproofing project. Simply enter the linear footage (the perimeter of your basement) and select your preferred method.
Enter the perimeter of your basement in linear feet.
Estimated Cost
Based on 100 linear feet at $70/ft
Full Price Range
$7,000 - $30,000
About Interior Waterproofing
Interior waterproofing manages water that has already entered your basement. It's less invasive and typically more affordable than exterior methods, but may not solve underlying issues.
Additional Cost Factors
While linear footage is the primary factor in calculating waterproofing costs, several other elements can affect your final price:
- Accessibility: Difficult-to-access areas may require additional labor and equipment.
- Depth of foundation: Deeper foundations require more excavation for exterior waterproofing.
- Soil type: Certain soil conditions may require additional drainage solutions.
- Existing damage: Repairing cracks or structural issues before waterproofing adds to the cost.
- Additional features: Sump pumps, drainage systems, or vapor barriers will increase costs.
For an accurate quote tailored to your specific situation, we recommend consulting with a professional waterproofing contractor.
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Resources & guides
Practical articles on waterproofing, foundations, and moisture—written for Ontario homeowners.