How Proper Drainage Saves Your Landscape (and Your Foundation)

Water is the number one enemy of both landscapes and home foundations. In Greater Vancouver's rainy climate, poor drainage leads to standing water, erosion, soggy lawns, and — worst of all — foundation damage that costs tens of thousands to repair.

What Are the Warning Signs of Poor Drainage?

Watch for these warning signs: standing water after rain, soggy or spongy areas in your yard, water stains on your foundation, basement leaks or dampness, and soil erosion along slopes or near downspouts. These are especially common in Surrey, Delta, and low-lying areas of the Lower Mainland.

What Is a French Drain and How Does It Work?

French drains are perforated pipes wrapped in filter fabric and surrounded by gravel, installed in a trench that channels water away from problem areas. They're invisible once installed and incredibly effective at managing subsurface water — essential for BC's heavy rainfall.

What Surface Drainage Solutions Are Available?

Channel drains, catch basins, and grading adjustments handle surface water runoff. These are essential near patios, driveways, and at the base of slopes. Proper grading ensures water flows away from your foundation — a minimum 2% slope is recommended.

How Do You Manage Downspout Drainage?

Many drainage problems start at the roof. Downspout extensions, underground drain pipes, and rain gardens can redirect thousands of gallons away from your foundation each year.

How Much Does Ignoring Drainage Cost?

Foundation repairs average $5,000-$15,000 and can exceed $50,000 for severe damage. A professional drainage system typically costs $2,000-$8,000 — a fraction of what you'd spend fixing water damage. It's one of the smartest investments you can make.

Northwood Landscaping evaluates drainage as part of every project across Greater Vancouver. Don't wait for water damage — contact us for a drainage assessment today.