Tips to prevent spring water damage in your home
6 minute read Published on Jul 11, 2026 by BrokerLink Communications
The springtime brings warmer weather, melting snow and some much-deserved relief from frigid conditions. But for a lot of Canadian homeowners, especially in provinces like Alberta, Saskatchewan and Manitoba, the spring also brings a major risk of water damage due to heavy snowfall during the winter months.
As the snow melts and the ground thaws, water can seep into your home through cracks, overflowing gutters, downspouts and foundation walls. That’s why taking preventative measures each spring is essential to avoiding costly repairs, mould growth and long-term structural issues.
Why spring water damage matters and what’s at stake
When snow starts to melt, water can seep into your property through leaks and cracks, making it a common cause of water damage. The consequences of this happening can range from minor issues like dampness to major problems that compromise the structural integrity of your home.
Water damage isn’t rare. It represents 50% of all home insurance claim costs in Canada. According to Accomsure, water damage is the leading cause of property damage, costing insurance companies around $1.7 billion annually. What’s even more concerning, is that the average cost of repairing a flooded basement is over $40,000 as of 2025.
That risk, paired with rising extreme weather events across Canada, makes water damage prevention a priority for all homeowners. Furthermore, water intrusion in your home can lead to:
Cracks in foundation walls and floors
Flooded basements and ruined personal belongings
Mould growth, which can begin within 48 to 72 hours of water damage
Long-term structural deterioration
Damage to insulation, drywall, flooring, electrical and HVAC systems
All about ice damming and how to prevent it
Ice damming is a common springtime hazard that many homeowners may overlook unsuspectingly. Here's what you should know:
What is ice damming?
During the wintertime, snow accumulates on your roof. As you use your HVAC system to heat your home, that heat rises and heats up the attic. The accumulated snow on your roof will then melt quickly. As water flows toward your gutters and downspouts, it can freeze. Over time, this freeze-and-thaw cycle can lead to ice dam formation.
Once the ice dam has formed, water can no longer drain properly. Instead, it will pool behind the dam, seep into your roof shingles and then leak into your home through any existing cracks in the attic walls or insulation. This can then lead to water damage inside your ceilings and walls and cause mould growth that may go undetected.
Why is this a problem in cold climates?
Homes in Canada are no stranger to snowfall. Fluctuating temperatures, frequent freeze-thaw cycles and heavy snowfall make ice damming more likely. Additionally, poorly vented attics can trap heat, which melts snow faster. That process can accelerate ice damming.
Prevention strategies
Here's how you can prevent damage:
Remove any ice or snow from your eaves troughs so water can flow freely (for example, use a broom to safely knock down any icicles hanging from the gutters).
If you wish to remove snow from your roof, do so safely. Do not climb directly on the roof or use a rake to remove snow, as both actions may damage your roof. Alternatively, it is best to hire a professional to safely clear snow and ice.
If the extent of ice damming is significant, consider contacting a professional roofer or gutter-cleaning expert.
Improve insulation and ventilation to ensure air circulates and maintains a uniform temperature in your attic.
Install roof heating cables or de-icing cables along the ease of your roof.
Schedule regular inspections with a roofing professional in the fall to seal cracks, replace missing or damaged shingles and identify other exposures that could lead to ice damming.
Gutters and downspout maintenance: A key to protecting your home
A simple, but effective way to prevent water damage during the spring is to clean your gutters and downspouts. Clogged gutters and improperly positioned downspouts can funnel water directly toward your home, which is the last thing you want when snow melts and during periods of heavy rainfall. It's important to know the following:
Why gutters matter
Leaves, sticks, dirt and ice buildup can block water drainage systems, causing the water to overflow and seep down into your exterior walls toward foundation cracks. Similarly, when downspouts are positioned too close to your foundation or don’t extend far enough, they pose a significant risk of water pooling into the surrounding soil. Over time, this excess water can cause cracks in your home’s foundation and basement walls.
Maintenance tips
Here's what you can do to keep things in good shape:
Clean gutters and downspouts twice a year, ideally in the fall before the snow starts and again in the early spring after the spring thaw.
Install gutter guards to reduce the amount of debris that collects in your gutters.
Use downspout extensions or splash pads to direct water at least 2 to 3 metres away from your home’s foundation.
Consider installing a french drain to divert water away from your home.
Inspect your downspouts and other drainage systems for rust, cracks and other damages that may pose significant risks.
Prevent water damage in basement and foundation
As the snow melts and seeps into the soil, it can become extremely saturated with excess water, putting pressure on your foundation over time. Without a proper drainage system and waterproofing, the ground water can find its way into your home. Let's take a closer look at what to look for and how to prevent basement flooding:
Common risks after snowmelt and spring rainfall
Heavy rainfall or snow melting can cause the following:
Pooling water next to your foundation wall.
Groundwater levels rising in areas with a high water table or following periods of heavy rainfall.
Foundation cracks and basement wall damage potentially leading to basement flooding and structural issues.
Improper drainage in basement drainage systems or window wells.
What to do
Here's what you should do to prevent damage to your basement and foundation:
Ensure proper grading. The ground should slope at least 6 inches per meter away from your home’s foundation for at least 1 to 2 metres.
Invest in waterproofing membranes to waterproof your basement.
Use interior sealants and hydraulic-cement patching for small cracks.
Install a sump pump and backwater valve to prevent foundation damage and potential leaks due to overwhelmed drainage systems.
Ensure window wells, basement drains and blow-ground-level openings are sealed and have proper covers to prevent runoff from entering inside.
What home insurance covers and what it doesn’t
Most homeowners’ policies cover sudden and accidental water damage like burst pipes, roof leaks or accidental overflows. However, gradual damage and other moisture issues that could have otherwise been prevented by the homeowner are not, unless they add optional coverage to their plan. Here's what you should know:
Why this matters
A recent survey shows that approximately 32% of Canadians mistakenly believed that their standard homeowners policy includes flood insurance. However, overland flood insurance, sewer backup and seepage water leaking through a damaged roof, due to drainage issues or ground water are not. You can opt to add optional endorsements with your insurance provider for an added premium.
Extreme weather events and floods are becoming more frequent in Canada, exposing homeowners to serious financial risks, which is why having the right insurance plan in place can help you protect your home, your finances and your personal belongings. Even a single water damage claim can increase your premiums by 19%.
Tips when reviewing your policy
To be able to fully understand what's covered by your insurance policy, it's recommended to:
Ask your broker whether your policy includes or can be supplemented with overland flood, sewer backup and groundwater protection endorsements.
Keep documented routine maintenance records in case you need to file an insurance claim in the future. These can help prove you took reasonable preventative measures.
Remember: Even with the right insurance coverage in place, you may still need to pay a deductible to your insurance company during the claims process.
Spring water damage prevention checklist
Water can cause significant damage. Luckily, there are many ways to prevent it, including:
Ensure your property has grading that matches local building codes
Install or repair gutter guards
Clean gutters and downspouts twice a year
Hire a professional to remove snow and ice if needed
Extend downspouts away from your foundation
Check your attic insulation and ventilation
Install a sump pump, french drain, waterproofing membrane and a backwater valve
When to call a professional
While many prevention tips and regular maintenance tasks can be performed by homeowners, some situations may warrant calling a professional:
There’s significant snow and ice buildup on your roof eaves.
You’re experiencing recurring ice damming.
There’s persistent water leakage in your crawl spaces or attics.
Your property has poor drainage.
Want to know how to choose a contractor? Take a look:
Tips for selecting a contractor
You should consider:
Double-checking their licensing and insurance coverage beforehand.
Getting written estimates with a clear scope of work.
Requesting before and after photos and keeping them for future insurance purposes.
Contact BrokerLink today
Spring water damage may not always be visible, but the consequences can be costly. Consult with a BrokerLink advisor to learn more about your home’s unique risk factors and tailor a plan that protects your home and finances.