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How Waterproofing Can Save Your Foundation

How-Waterproofing-Can-Save-Your-Foundation

The foundation of your house, made up of the slab of cement beneath it and the stone walls of any existing basement, is vital to the integrity of your home’s structure. A damaged foundation can lead to expensive damage inside the house, such as cracking walls, bowing floors, and more. This kind of damage is not just expensive, it’s unattractive, dangerous, and leads to an overall lower quality of life. So, instead of waiting until you have to fix the problems caused by foundational damage, take a look at how waterproofing can save your foundation from having problems to begin with.

Foundational Damage

To begin, we need to take a look at some of the ways your foundation can be damaged.

One way a foundation can become damaged is if the house was built on unstable ground. This happens a lot in areas with a lot of moisture. If your house is near a river or lake, the ground will shift over many years. Even shifting by an inch over a few decades can cause foundational problems for your home. These problems will be especially noticeable as the seasons change. Do you ever notice your doors opening and closing differently at different times of the year? This is caused by a structural shift. Since the structure relies entirely on the foundation, that means the foundation is shifting as well. 

The second type of damage is water and moisture damage. Even if you don’t live near a body of water, a wet climate can cause damage to your foundation. As rain water, snowmelt, and any other kind of water in the ground moves toward your foundation, it can damage it. But how?

Warning Signs of Foundation Damage You Shouldn’t Ignore

Many homeowners miss early signs of foundation damage until it’s too late — and too expensive. Here’s what to look for:

  • Cracks in walls, especially near windows or door frames
  • Sloping or uneven floors
  • Sticking doors or windows
  • Cracks in basement floors or exterior foundation walls
  • Gaps between walls and ceilings

If you notice one or more of these, your foundation may already be shifting due to water intrusion. Waterproofing can help stop further deterioration.

The Pitfalls of Erosion

Have you ever seen a collection of photos showing a timelapse of a river being formed? Have you ever wondered why river rocks are so smooth and round? The answer is erosion. Erosion is when water continually runs over something and wears away at it slowly. It’s powerful enough to carve out pathways in the earth, create canyons, and smooth a boulder into a rock the size of your fist.

This same long-term effect can wear away at your foundation. While most of us don’t have our foundation directly adjacent to a running river, many of us have wet soil piled and packed against the walls of our basements. The water from wet soil, especially in very rainy or snowy regions, will damage our foundation walls over time. 

As the walls develop tiny cracks, the water will get inside. This water travels through the stone, sometimes making its way into the basement. As the water moves through the cracks, it widens them and makes them bigger. This will continue on until the foundation begins to crumble and sag.

Expansion and Contraction

Even worse than the erosion is the expansion and contraction of water as temperatures change. If you’ve ever left a bucket outside over winter, you’ve probably lost yourself a bucket. That’s because, when water wills a space and then freezes, it expands. When it melts, it contracts. When it freezes again, it contracts again. This process repeating over and over again will split a bucket, crack a vase, and even destroy your foundation – unless you do something to save your foundation.

Waterproofing Can Save Your Foundation

If you want to save your foundation from erosion, expansion, and contraction, you need to invest in waterproofing. This is especially important if you have a slightly older house or if you want to prevent a new house from aging poorly. Give us a call today and we’ll be happy to schedule a consultation with you.

Interior vs. Exterior Waterproofing: What’s the Difference?

There are two main approaches to foundation waterproofing — interior and exterior — and each serves a different purpose.

  • Exterior waterproofing blocks water from entering at all. It involves excavation, membrane installation, and drainage improvement. Ideal for long-term protection.
  • Interior waterproofing controls water that’s already entered. This can include sump pumps, vapor barriers, and drainage channels to redirect water safely away.

The best strategy often combines both methods — but only a professional inspection can determine what’s best for your property.

Common Myths About Foundation Water Damage

Homeowners often rely on misinformation that delays necessary repairs. Let’s bust a few common myths:

  • Myth: Small cracks are harmless.

Even minor cracks can let in moisture and lead to serious structural problems over time.

  • Myth: My home isn’t near water, so I’m safe.

Groundwater and precipitation can cause erosion regardless of proximity to lakes or rivers.

  • Myth: Paint or sealant is enough.

These interior fixes may mask symptoms but don’t stop the source of intrusion.

Trust professionals to address root causes, not surface symptoms.

Why Homeowners Trust Leaquida for Foundation Waterproofing

At Leaquida Waterproofing, we protect your home from the ground up. Here’s why Toronto homeowners count on us:

  • Comprehensive assessments with moisture mapping
  • Exterior excavation and sealing, done right the first time
  • Sump pump and drainage installations
  • Experience with older and newer foundations alike
  • Licensed and insured professionals, serving all of the GTA

Stop cracks before they spread. Schedule your inspection today and invest in long-term protection for your home.

FAQ

How can I tell if my foundation is already being affected by moisture?

Look for early signs like hairline cracks in basement walls, musty smells, uneven floors, or doors that no longer close properly. These symptoms often point to shifting or weakening of the foundation due to water intrusion.

Is waterproofing only necessary for homes with basements?

No. Even slab-on-grade homes are vulnerable to water pooling around the base, which can weaken the concrete slab. Waterproofing protects any structure with a foundation — basement or not — from long-term water-related damage.

Will foundation waterproofing help during heavy snow seasons?

Absolutely. Snowmelt saturates the soil around your foundation. Without waterproofing, this moisture can seep into cracks and freeze-thaw cycles can quickly worsen them. Waterproofing keeps meltwater out and helps preserve structural integrity.

Can erosion really damage modern concrete foundations?

Yes. Even today’s reinforced concrete is not immune to erosion. Over time, persistent moisture breaks down materials — especially along joints and seams — leading to costly structural issues if left unchecked.

What’s the difference between interior and exterior foundation waterproofing?

Interior waterproofing manages water that gets inside, often using drainage systems or sump pumps. Exterior waterproofing prevents water from entering in the first place by sealing walls and redirecting water away from the foundation.

How long does professional foundation waterproofing last?

A well-executed exterior waterproofing system can last 25+ years, especially with proper drainage and grading around your home. Regular maintenance inspections help extend the effectiveness even further.

What we do?

  • check iconCLOGGED OR BROKEN WEEPING TILE
  • check iconWATER TABLE OR STREAM
  • check iconFOUNDATION WALL CRACK
  • check iconWINDOW WELL
  • check iconFLOOR WALL JOINT
  • check iconFLOOR DRAIN
  • check iconOVER TOP OF FOUNDATION WALL
  • check iconDOWN STACK / SEWER DRAIN
  • check iconSUMP PUMP AND WELL
  • check iconFLOOR CRACK
  • check iconFOUNDATION WALL SEEPAGE