Drainage Solutions & Waterproofing

Introduction

Water doesn’t ask for permission.

It finds the weak spots, and when it does, it starts causing damage fast—flooded basements, soggy lawns, shifting foundations. Most homeowners don’t realize the issue starts underground. That’s where we come in. At PMD Excavation, we build drainage systems and perform waterproofing work that keeps homes in St. Thomas, London, and surrounding areas dry, solid, and safe. In this guide, we break down what good drainage really looks like, how waterproofing fits in, and how to stop small water issues before they become expensive repairs.

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Why Drainage and Waterproofing Matter

If water isn't managed properly, it doesn’t just disappear. It seeps into your foundation, weakens soil, drowns landscaping, and can even lead to mold and health issues inside your home.

Whether you’re seeing puddles near your foundation, damp spots in the basement, or just planning ahead for a build, this is one area where prevention pays off big.

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What Drainage Solutions Involve

1. Site Assessment

We start by walking your property and reading the land. Where does water pool? Which way does it run? How close is it getting to your home? We look at slope, soil type, and nearby structures to find the real cause of the issue.

2. Grading Adjustments

One of the most common fixes is adjusting the grade of your yard or project site. Even a small slope correction can send water away from your home instead of toward it.

3. French Drains & Trench Drains

We install underground drainage systems that collect and redirect water. These systems are hidden but powerful — moving water to where it can safely disperse.

4. Downspout Extensions & Swales

Sometimes it's simple. We extend downspouts, shape swales, or dig shallow channels to move runoff away from foundations or driveways.

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What Waterproofing Might Include

1. Foundation Sealing

If you're getting water inside the basement or crawlspace, we can excavate around the foundation, apply a proper waterproofing barrier, and protect it with gravel and membrane.

2. Window Wells & Drains

Basement windows are often weak points. We install wells with proper drainage to keep water out and natural light in.

3. Sump Pit Excavation

For homes with active water tables or drainage challenges, we dig and prep sump pit systems that work with pumps to keep basements dry.

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Common Signs You Need Drainage or Waterproofing Work

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Why PMD Excavation?

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FAQs

Do I need a French drain or just better grading?
It depends. Many properties just need slope adjustments. If water is getting into your basement, an underground system may be the better option.

Is this something I can DIY?
Small adjustments like downspout extensions? Maybe. Excavation and waterproofing? That’s best left to pros who understand soil, safety, and structure.

Will this fix stop basement leaks?
In many cases, yes — especially when paired with proper waterproofing. We’ll assess the full picture and recommend the right steps.

How long does drainage work take?
Most projects take 1 to 3 days depending on complexity. We’ll give you a clear timeline before we begin.

Can you work around landscaping or existing structures?
We do it all the time. We'll plan the work with care to avoid damaging anything unnecessary.

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Don’t Wait Until It’s a Bigger Problem

The best time to fix a drainage or waterproofing issue is before you see water where it shouldn’t be. Whether you’re dealing with a soggy yard, a damp basement, or building a new structure, we’ll help you protect your investment.

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Call us today at [226-559-2112] for a free drainage or waterproofing consultation!