Exterior Drainage & Water Management in London, Ontario
French drains, window wells, grading, downspouts and catch basins work together to manage water before it reaches the foundation. We assess the whole drainage picture and recommend targeted improvements.
Exterior Water Management Solutions
Explore our range of specialized exterior drainage solutions below. Click each solution to see photos and detailed installation specs.
Active Solution
French Drain Systems
French drains collect and redirect surface and groundwater through a perforated pipe surrounded by drainage stone. They're used to intercept water moving toward the foundation and carry it safely away.
French drains collect and redirect surface and groundwater through a perforated pipe surrounded by drainage stone. They're used to intercept water moving toward the foundation and carry it safely away.
- Intercepts heavy surface runoff before reaching foundation walls
- Perforated piping enveloped in clean filter fabric & drainage stone
- Gravity-fed discharge to safe disposal area or dry well
Window wells protect below-grade windows and prevent water pooling against the wall. We install window wells with proper drainage to the weeping tile so water doesn't accumulate at the window.
- Custom heavy-duty galvanized steel or composite well enclosures
- Direct vertical drain connection tied into exterior weeping tile
- Polycarbonate window well covers to block leaves, debris & heavy rain
Grading correction ensures the ground slopes away from the foundation so surface water sheds away rather than toward the wall. Even small grading improvements can significantly reduce water at the foundation.
- Minimum 5% negative slope away from exterior foundation walls
- High-density clay-blend backfill soil compaction to prevent settling
- Protects basement walls from hydrostatic head pressure build-up
Downspouts concentrated at the foundation dump roof water directly against the wall. Extensions and underground downspout drainage carry discharge away from the foundation to reduce infiltration.
- Buried solid PVC or corrugated extension lines 10+ feet from walls
- Pop-up emitter valves or lawn bubbler discharge outlets
- Prevents thousands of gallons of roof rainwater soaking foundation soil
Catch basins collect surface water in low areas and direct it into underground drainage systems. This prevents pooling and moves water away from the foundation and problem areas.
- Heavy-duty surface grates trap leaves and debris before clogging pipes
- Direct connection to municipal storm lines or safe daylight discharge
- Eliminates standing lawn puddles and water pooling near walkways
How We Assess Drainage Problems
We evaluate the full drainage picture during inspection:
Installation Process Roadmap
Our 6-step exterior drainage installation roadmap delivers clean, high-performance runoff control:
Elevation & Slope Assessment
Mapping surface contours, yard slope, and roof runoff pathways.
System Design & Layout
Planning French drains, catch basins, and underground discharge lines.
Utility Locate & Site Prep
Marking underground utilities, setting up site protection, and staging materials.
Trenching & Pipe Installation
Excavating trenches, placing filter fabric, perforated pipe, and clean drainage stone.
Catch Basin & Outlet Setup
Installing surface grates, pop-up emitters, and connecting discharge outlets.
Backfill, Turf & Final Testing
Restoring lawn surface, compacting backfill, and verifying gravity water flow.
Frequently Asked Questions
Frequently Asked Questions
Stop Water Before It Causes More Damage
Whether you're dealing with a foundation crack, recurring basement seepage, drainage issue or failed sump pump, our London team will inspect the site and deliver a guaranteed solution.