Water in Your Basement? Here's Why It Happens in Winnipeg
Water in the basement. Four words that no homeowner ever wants to hear. Yet, we are hearing it much more frequently this year. Here is why:
Winnipeg homes are built on silt and clay, not bedrock. So the ground here is constantly moving and settling.
We have had some dry summers lately. As many of you likely will have noticed, this caused the ground around your house to dry up, crack, and in most cases pull away from the foundation walls of your home.
This left larger gaps than usual leaving empty air pockets between the soil and your home.
We then had a very cold winter that started with very little snow. So the ground froze, and it froze more deeply than typical.
We then had high levels of snow toward the end of the winter (SO MUCH SNOW!)
Up until the last two weeks, the weather has been fairly cold, however now we are suddenly hitting high, well above freezing, temperatures.
These high temperatures, while very welcome after this frigid winter, are causing the snow to melt very rapidly.
Your house emanates heat, so the soil that melts the quickest will be the soil adjacent to your house.
Water will find the path of least resistance, so it is finding its way into the gaps left by the dry soil conditions of last year and sitting against your house.
Eventually this water has to go somewhere. So if there were snap-ties used in construction of your house that have rusted at all, it may work its way in through those small holes. Alternatively, even if your weeping tile is working water can still find its way up under your basement floor slab and foundation walls (they are separate systems that aren’t connected), and appear as seepage.
Unlike cities built primarily on bedrock, Winnipeg homes experience constant soil movement due to our clay-based conditions.
So what does this mean? If you have already discovered water, I know how disheartening and concerning it is. Logan and I have experienced it in our own home in the past. But rest assured, it is not necessarily a foundation crack, or failing foundation. So don’t go too crazy tearing down drywall (or wood panelling if you are so lucky) to investigate yet. Here is what the home inspectors have told us:
Prevention is the first line of defence. Prevent that water from hanging out around your foundation. Try redirecting it for now as it is still too early to do grading work. You can buy inexpensive pumps that attach to a garden hose to pump pooling water away from your yard and foundation
Get remaining snow away from your house. Yes, the people that shovel their yards do look crazy, but there is method to their madness. Spread that snow out around your yard and away from your foundation
If you have a window well, do not let snow build up in it. Shovel them out, and get that snow away from the house.
Depending on the age of your home, you may want to talk to a plumber about having your weeping tile flushed out. The weeping tile can become clogged over the years and no longer function properly. An early indicator of whether or not the weeping tile is functioning properly can be found by checking your main drain. See if the pipes leading into it from the weeping tile are wet. If they aren’t, there could be a blockage somewhere along the lines.
If you have a sump pump, make sure it is functioning properly, that the exterior hose isn’t frozen, and that the water is being directed away from your foundation.
If the water does manage to work its way in, don’t let it linger. Get a dehumidifier and some fans set up. Keep the air moving and get the area dry. The last thing you want is mold forming.
When it warms up, work on improving the grading around your home. Remember, we always want the ground around your home sloping away from your foundation. There should be no areas where water can sit and pool near your foundation. This is an ONGOING homeownership task. The ground is constantly settling, so it is important to check every year to ensure you are maintaining a positive grade away from your home.
In the summer, water your foundation. Yes, you read that right. If we see dry conditions again this year, in which the ground is cracking and shrinking, it is prudent to water near your foundation wall (usually about 4-5 feet away from your foundation). We want to keep enough moisture in the soil to alleviate gaps from forming between your house and the soil. This is all weather dependent though. In wet years, overwatering may put excessive pressure on the foundation walls.
If you are selling, be sure you disclose the water.
I know, it is not a great selling feature. But the last thing you want is for the purchaser of your home to discover you have had seepage issues that were undisclosed during their purchase. These are the types of issues that can come back to haunt you. A good Realtor will know and be aware of the conditions this year and will be able to explain this to their client to alleviate concerns.
Common Entry Points for Basement Water
One of the biggest misconceptions homeowners have is that water simply "comes through the wall." In reality, water is incredibly persistent. It will follow the path of least resistance and can enter a basement through a variety of locations, some of which are not immediately obvious. If you're dealing with water in your basement, here are some of the most common entry points we see in Winnipeg homes.
Foundation Cracks
Foundation cracks are perhaps the most well-known source of basement water intrusion. Winnipeg homes are built on clay-based soils that naturally expand and contract depending on moisture levels. Over time, this movement can place stress on foundation walls, leading to cracks. Not all foundation cracks are cause for concern, but when a crack extends through the entire wall, it can create a pathway for groundwater to enter the home. Signs water may be entering through a foundation crack include:
Damp spots on basement walls
Water staining
Efflorescence (white chalky deposits)
Active dripping during heavy rain or spring melt
The good news is that many foundation cracks can be repaired successfully through professional injection or exterior waterproofing methods.
Snap Ties
Many homeowners have never heard of snap ties, but they are actually one of the more common sources of basement leaks. During the construction of a concrete foundation, metal ties are used to hold the forms together while the concrete cures. Once construction is complete, portions of these ties remain embedded within the foundation wall. Over time, moisture can travel along these tie locations and eventually find its way into the basement. Because snap tie leaks often occur beneath the surface, homeowners may notice:
Small circular damp spots on foundation walls
Water seepage appearing in seemingly random locations
Recurring moisture during periods of heavy rain
Snap tie repairs are generally straightforward once the source has been properly identified.
Window Wells
Window wells are one of the most common culprits when homeowners experience sudden water entry after a major rainfall. A window well is designed to keep soil away from basement windows and allow natural light into the lower level of the home. However, if the drainage system within the well becomes overwhelmed or blocked, water can quickly accumulate. Common causes include:
Plugged drains
Debris buildup
Improper grading
Heavy rainfall
Snow melt
Once water rises high enough within the well, it can enter through:
Window frames
Window seals
Cracks around the window opening
If you've ever walked outside after a storm and found a window well full of water, this could be a warning sign that drainage improvements are needed.
Floor-Wall Joints
Many homeowners assume that if water appears on the basement floor, it must be coming up through the concrete slab. While that can happen, a much more common entry point is actually the joint where the basement floor meets the foundation wall. This connection point (often called the cove joint) is present in virtually every basement. During periods of high groundwater pressure, water can be forced through this joint and appear as:
Dampness along the perimeter of the basement
Puddling near exterior walls
Water that seems to appear "out of nowhere"
In many cases, water entering at the floor-wall joint is an indication that the drainage system around the home is being overwhelmed by groundwater.
Service Penetrations
Every home has utilities that enter through the foundation. These may include:
Water lines
Sewer connections
Gas lines
Electrical conduits
Telecommunications services
Whenever a pipe or utility passes through a foundation wall, an opening must be created. Although these penetrations are sealed during construction, seals can deteriorate over time due to:
Ground movement
Settlement
Age
Freeze-thaw cycles
When this occurs, water can enter around the utility rather than through the utility itself. Because service penetrations are often hidden behind finished walls, leaks can sometimes go unnoticed until significant moisture has accumulated.
Why Identifying the Entry Point Matters
One of the biggest mistakes homeowners make is treating the symptom rather than the cause. Water may show up in one location but actually be entering somewhere completely different. For example:
Water entering through a window well may travel along a wall before appearing on the floor.
Water entering through a foundation crack may not become visible until it reaches a finished area.
Water entering through a service penetration may appear several feet away from the actual source.
That's why identifying the true point of entry is often the most important step in determining the right repair strategy.
Key Takeaways
Water in a basement does not automatically mean foundation failure.
Winnipeg's clay and silt soils create unique moisture challenges.
Rapid snow melt and heavy rainfall can increase water pressure around foundations.
Proper grading and drainage are the first line of defense.
Sump pumps and weeping tile systems require regular maintenance.
Preventative maintenance is often far less expensive than water damage repairs.
Frequently Asked Questions About Water in Winnipeg Basements
Does water in my basement mean I have a foundation crack?
Not necessarily. Water can enter through foundation cracks, but it can also seep through snap ties, floor joints, window wells, or areas where water pressure has built up around the home.
What is the most common cause of basement seepage in Winnipeg?
Poor drainage around the foundation is one of the most common causes. Improper grading, clogged weeping tile systems, and excess groundwater pressure frequently contribute to water issues.
How can I keep water away from my foundation?
Maintaining positive grading, extending downspouts away from the home, clearing window wells, and ensuring sump pumps are functioning properly are all important preventative measures.
Should I water my foundation during dry summers?
In Winnipeg's clay-based soil, controlled watering during extremely dry conditions can sometimes help reduce soil shrinkage and movement. However, watering practices should be adjusted based on weather conditions and the advice of foundation professionals.
How often should I inspect my grading?
At least annually. Winnipeg's soil naturally expands and contracts, meaning grading can change over time and may require periodic adjustment.
Final Thoughts
Discovering water in your basement can feel overwhelming, but it's important not to jump to worst-case conclusions. Many basement water issues are manageable when caught early, and understanding how water behaves around your foundation is one of the most valuable things a Winnipeg homeowner can learn. A little preventative maintenance today can save significant frustration (and expense) later.
Do you feel there is something I have missed? Please reach out!
Your Friend in Real Estate,
Jennifer Queen
Sales Representative
Tel: (204) 797-7945
Email: Jennifer@QueenTeam.ca
About the Author: Jennifer Queen is a Winnipeg REALTOR® and team lead of The Queen Team. Having helped hundreds of homeowners buy and sell homes across Winnipeg, Jennifer understands many of the unique challenges that come with homeownership in Manitoba including foundation maintenance, water management, and basement seepage issues. Her goal is to help homeowners make informed decisions and protect one of their largest investments.
