Interior Basement Waterproofing Toronto
Transform your wet basement into a dry, usable space with our comprehensive interior waterproofing system. Advanced drainage, sump pumps, and moisture control with up to $3,400 in available rebates.
Free Assessment & Quote
How It Works
We follow a step-by-step approach to ensure a thorough and effective waterproofing installation.
- Comprehensive Inspection & Assessment
- Drill Weeping Tiles & Install Perimeter Drain
- Install High-Capacity Sump Pump System
- Apply Waterproof Membrane to Foundation Walls
- Repair Cracks & Seal Joints
- Final Cleanup & Quality Check
Our team uses only industrial-grade materials and follows industry best practices to guarantee long-lasting results.
Why Interior Waterproofing Is Essential
Ignoring basement moisture can lead to costly repairs. Here are key reasons to waterproof your basement.
Prevent Mold & Mildew
Excess moisture creates a breeding ground for mold and mildew, affecting indoor air quality and health.
- Eliminate dampness and musty odors
- Safeguard family’s respiratory health
- Maintain a hygienic living space
Protect Your Foundation
Water infiltration can erode foundation walls over time, leading to structural damage and costly repairs.
- Prevent cracks and settlement
- Extend the lifespan of your foundation
- Maintain property value
Increase Home Value
A dry, well-maintained basement adds usable living space and boosts your home’s resale value.
- Create a safe, livable basement area
- Attract potential buyers
- Enjoy greater ROI on renovations
Our Waterproofing System Components
We utilize top-quality materials and equipment to ensure the best performance and durability.
High-Capacity Sump Pump
Efficiently removes groundwater before it accumulates, keeping your basement dry even during heavy rain.
- Energy-efficient operation
- Automatic float switch
- Heavy-duty, corrosion-resistant construction
Perimeter Drain System
Custom-fitted to divert water away from your foundation via weeping tiles and drain piping.
- Slotted PVC drainage pipe
- Gravel bed for optimal water flow
- Direct connection to sump pump
Waterproof Membrane
Applied to foundation walls to create a watertight barrier against moisture intrusion.
- Polyethylene-based, highly durable
- Resistant to punctures and tears
- Prevents hydrostatic pressure buildup
Service Breakdown
Our installation process is transparent and customer-focused. Here’s what to expect at each stage.
What We Do:
- Comprehensive interior and exterior inspection
- Identify moisture entry points
- Provide detailed assessment report and estimate
What We Do:
- Remove drywall and flooring near perimeter
- Excavate careful trench at foundation base
- Ensure safe working environment
What We Do:
- Install perimeter drain and connect to sump pit
- Apply waterproof membrane to interior walls
- Seal cracks and joints with high-grade epoxy
What We Do:
- Backfill trench and restore flooring
- Test sump pump operation and drainage
- Conduct final walkthrough and cleanup
Interior vs Exterior Waterproofing
Understand the differences to choose the best solution for your basement.
| Aspect | Interior Waterproofing | Exterior Waterproofing |
|---|---|---|
| Cost | Lower initial cost | Higher due to excavation |
| Disruption | Minimal—work done inside basement | Requires yard excavation, landscaping repair |
| Effectiveness | Controls moisture inside, prevents leaks | Stops water at source before it reaches walls |
| Timeline | 2–3 days | 5–7 days |
| Maintenance | Requires periodic sump pump check | Minimal once installed properly |
Our Recommendation
Contact us to discuss which option best suits your home’s needs.
Materials Specifications
We use only the highest-grade materials to ensure lasting protection and performance.
HDPE Waterproof Membrane
- Thickness: 20 mil high-density polyethylene
- Durability: Puncture-resistant, UV-resistant
- Function: Creates a barrier to block moisture
Slotted PVC Drain Pipe
- Diameter: 4-inch perforated PVC
- Design: Slotted for optimal water intake
- Connection: Direct to sump pump pit
Sump Pump System
- Model: High-capacity submersible pump
- Capacity: Up to 4,000 GPH (gallons per hour)
- Features: Automatic float switch, battery backup ready
Frequently Asked Questions
Common questions about interior basement waterproofing in Toronto.
Interior basement waterproofing involves installing drainage pipes, a sump pump, and a waterproof membrane along the inside perimeter of your basement. This system diverts water into a sump pit and pumps it away from your foundation, preventing leaks and moisture buildup.
Most interior waterproofing projects take 2–3 days, depending on the basement size and the extent of work needed. Our team provides a detailed timeline after the initial inspection.
We take every precaution to minimize disruption. While some dust and debris are unavoidable during excavation, we use protective floor coverings and perform a thorough cleanup upon completion.
Costs vary based on basement size, access, and the specific system components required. After our free inspection, we provide a transparent, itemized estimate so you know exactly what to expect.
Regularly test your sump pump by pouring water into the pit to ensure it activates and pumps out. Keep the area around the sump pit clear of debris. We recommend an annual inspection by our technicians for peace of mind.