Episodes of heavy rain, prolonged droughts, more frequent freeze-thaw cycles, and significant fluctuations in groundwater levels are now placing increasing pressure on buildings.
For more than 70 years, Bisson Expert has been assisting Quebec property owners with foundation repairs, structural stabilization, and building waterproofing. Thanks to our recognized expertise, exclusive technologies, and comprehensive range of services, we helps owners protect their investment against the impacts of climate change.
Why does climate change affect foundations?
Extreme weather events, such as droughts and floods, will become increasingly frequent in the coming years (source: Université du Québec à Montréal). And unfortunately, much of Quebec’s building stock was not constructed to withstand these new conditions.
Prolonged droughts and heavy rainfall place significant stress on foundations and can cause foundation cracks, water infiltration, and structural stability issues.
That is why foundation problems, basement water leaks, and the need for foundation repairs are on the rise throughout Quebec.
The unique challenge of foundations in Quebec
Clay soils are particularly sensitive to changes in moisture levels, and in Quebec, the most densely populated areas of the province consist of clay soil (Régie du bâtiment du Québec). In regions such as Montreal, the North Shore, the South Shore, Lanaudière, and the Laurentians, these conditions increase the risk of differential settlement and foundation subsidence.
In addition, many homes were built at a time when standards for drainage, waterproofing, and concrete quality were very different from today’s. Homeowners must therefore view foundation protection as a key factor in preserving the building.
Finally, mature trees tend to absorb large amounts of water, which dries out the soil. When planted near foundations, this can become a problem.
Expert Advice
“Periods of severe flooding or prolonged drought affect soil behavior and place additional stress on foundations. To address a settlement issue, we’ll stabilize the foundation using Bisson Expert’s patented pile technology. To deal with water infiltration, we’ll waterproof the area with the red membrane—exclusive to Bisson Expert and the most effective product on the market.“
– Vincent Beaudoin, President of Bisson Expert
Drought and foundation settlement:
when the soil shrinks
Foundation problems are often associated with water infiltration, but drought can be just as damaging. During long periods without rain, certain types of soil—particularly clay soils—lose their natural moisture. As they dry out, they shrink and lose volume. This contraction creates voids beneath the foundation and causes the building to settle unevenly.
Over time, several signs may appear:
- Cracks in interior or exterior walls.
- Visible foundation cracks.
- Doors and windows that don’t close properly.
- Floors that become uneven.
- Visible sagging in certain sections of the building.
This phenomenon is particularly concerning in Quebec, where many residential buildings were not designed to withstand such extreme cycles of soil drying and rehydration.
Foundation stabilization using steel piles:
a sustainable solution to prevent settlement
When a foundation becomes unstable due to ground movement, pile stabilization offers a long-term solution.
Installing steel piles distributes the building’s load down to bedrock a layer of soil stable enough to permanently support the structure. The piles are then welded to brackets anchored directly into the foundation to stabilize the entire building.
Once the piles are installed, the house or building is permanently stabilized, which helps reinforce the foundation and structure. Depending on the situation, the foundation may also be raised.
Bisson Expert has over 70 years of expertise in foundation stabilization. In particular, we have developed a patented hydraulic pile system designed specifically to address the unique conditions of Quebec’s soil.
Pile foundation stabilization can be used as a corrective measure when settlement has already occurred. It can also reinforce a structure weakened by ground movement.
The professionals at Bisson Expert conduct a thorough analysis of the building and soil conditions to recommend a solution tailored to each situation.
Heavy rain, water seepage, and pressure on foundations
On the other hand, heavy rainfall and flash floods also bring their own set of problems.
When the ground becomes saturated with water, several issues can arise:
- Water seepage into the basement.
- Overload of the French drain.
- Swelling of certain types of soil.
- Excessive moisture.
- Accelerated deterioration of concrete.
Even a foundation in good condition can eventually fail if the drainage system is no longer able to handle current water volumes. Older homes are particularly vulnerable, as their drainage systems often no longer meet today’s standards.
Based on its experience in the field, Bisson Expert has also observed an increase in issues related to water infiltration in basements and overloaded drainage systems across several regions of Quebec.
French drains:
essential protection against water infiltration
Drainage plays a vital role in protecting foundations. However, with increasing rainfall, traditional systems may no longer be sufficient. A poorly designed, clogged, or aging French drain may no longer effectively remove water from around the house.
Bisson Expert offers foundation drainage solutions designed to provide long-lasting protection against water infiltration. We prioritize installations equipped with access ports, which make it easier to inspect and maintain the system over the years. Adding a sump pump to the catch basin can also help prevent water infiltration.
This approach extends the lifespan of the French drain, reduces the risk of blockages, and improves water drainage.
Foundation waterproofing: the Red Lining
Even with proper drainage, a foundation is constantly exposed to moisture from the ground. As heavy rains and freeze-thaw cycles become more frequent, foundation waterproofing is now more important than ever.
Among the unique solutions offered by Bisson Expert is the 100% pure polyurea Red Lining, an exclusive waterproofing technology recognized for its performance and durability.
This waterproofing lining not only helps prevent water infiltration into the basement and excessive moisture but also provides long-lasting protection for the building’s structure against damage caused by climate change.
How can you protect your foundation from heavy rain and drought?
Even the best foundations require preventive maintenance. A few simple checks can make a big difference in preventing foundation problems.
Check the gutters
Clogged or improperly oriented gutters can cause large amounts of water to flow directly onto the foundation. It is recommended that you clean your gutters regularly, ensure that the downspouts direct water away from the house, and check that no standing water accumulates near the walls.
Inspect the window wells
Poorly drained window wells can allow water to seep in during heavy rains. Regular maintenance helps prevent water from pooling around basement windows.
Check the land’s incline
The land around the house should always direct water away from the foundation. Over time, certain areas may sink, creating spots where water pools near the building.
Have your foundation inspected
A professional inspection can quickly detect signs of settling, water infiltration, or deterioration. As weather events become more extreme, this preventive approach is becoming even more important.
Protect your foundation. Protect your peace of mind.
Climate change is no longer a distant reality. It is already directly affecting buildings in Quebec and will continue to put increasing pressure on foundations in the years to come.
If you notice foundation cracks, sagging floors, water seepage in the basement, or signs of excessive moisture, a professional inspection can quickly identify the cause of the problem and recommend appropriate solutions.
Give yourself peace of mind: schedule an appointment with our team.
Frequently asked questions (FAQ)
CAN CLIMATE CHANGE CAUSE WATER INFILTRATION?
Yes. Heavy rains, flash floods, and overloaded drainage systems increase the risk of water seeping into the basement and hydrostatic pressure around the foundation.
HOW CAN YOU PROTECT A FOUNDATION FROM HEAVY RAIN?
Proper drainage, an effective waterproofing membrane, regular gutter maintenance, and routine foundation inspections can significantly reduce the risk of water infiltration.
WHAT ARE THE SIGNS OF A SETTLING FOUNDATION?
The most common signs include cracks in the foundation and brickwork, sloping floors, doors and windows that don’t close properly, and visible settling in certain parts of the house.
DO STEEL PILES PROVIDE PERMANENT FOUNDATION STABILIZATION?
Yes. Foundation stabilization using steel piles is a long-term solution that transfers the building’s load to stable soil to correct settlement issues.