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Site Grading 101: Why Water Isn’t Draining Away From Your House

Published on

September 3, 2025

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Introduction

If your yard turns into a swamp every time it rains or you’ve noticed water creeping toward your foundation, your property likely has a grading issue. Many homeowners treat the symptoms—adding more soil, rerouting gutters—but the real fix starts with proper site grading. It’s one of the simplest, most effective ways to prevent water damage and foundation trouble.

Here’s what every homeowner in St. Thomas and Elgin County should know about site grading, and why excavation services often provide the long-term solution.

1. What Is Site Grading?

Site grading shapes the surface of your property to control water flow. The goal is simple: water should run away from your home, not toward it. That’s done by adjusting slopes, elevations, and soil levels around your foundation, driveways, and landscaping. It’s not just about where the water goes—it's about preventing it from pooling where it shouldn’t.

2. Why Improper Grading Causes Damage

Water is patient. If your lawn slopes toward your house, even slightly, water will find its way to your foundation. Over time, that leads to leaks, mold, and basement damage. It can also ruin landscaping and wear away patios or walkways. Without proper excavation and grading, even a beautiful yard can become a problem area.

3. How Excavation Solves the Problem

Fixing a drainage issue often means more than spreading topsoil. Excavation removes problem areas, reshapes the land, and compacts new soil layers for lasting results. This could mean creating swales, installing a proper slope, or prepping for a French drain. It's all about controlling the path of water from the moment it hits the ground.

4. Signs You Might Need Site Grading

Watch for standing water near your foundation, soft spots in your lawn, erosion under walkways, or any signs of moisture in the basement. If you’re constantly battling puddles or wet soil, it’s time to consider professional excavation. Grading is the fix that gets to the root of the problem instead of masking it.

Final Thought

Good grading protects your home and landscape by working with the land—not against it. If water isn’t draining like it should, excavation may be the smartest investment you make.

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Your Questions Answered

We try to keep things simple and clear. Here's what most people ask.

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How soon can you start my excavation project?

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Can you dig close to my house or structure?

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Do you clean up after the job?

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You can trust the people running the equipment.

Whether you’re digging for a new foundation, installing drainage, or prepping a site for your dream build, PMD Excavation gets it done clean, safe, and right the first time across St. Thomas, London, and Southwestern Ontario.

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