When you discover flooding in your condo, you’ll need to act fast to limit the water damages and avoid costly repairs. Contacting your condo association and your insurer immediately is just the first step, and there’s a lot more crucial info you’ll need to be aware of if your condo floods. We’re here to explain your rights and responsibilities in this situation, as well as the steps to take to get a water leak in your condo under control.

Steps to manage flooding in a condo

Find the source quickly

To effectively manage a case of flooding in your condo, you must first quickly find the source of the problem. This will help you limit potential water damage and prevent the situation from getting worse.

Start by checking the usual problem areas. Water often gets in through the roof when shingles are curled or loose. Also, check for cracks in the foundation, which are a common cause of water infiltration. Poorly sealed doors and windows are also vulnerable points where water can enter during heavy rainstorms.

The appearance of damp spots on walls or ceilings usually points the way to the leak. Follow them to their highest point; that's often where the source of the problem is. In some cases, the water may be coming from a neighbouring unit's wall or ceiling. If you think that may be the source of your flooding, be sure to contact your neighbour immediately to see if they’ve noticed anything.

Report the incident to the condo association and your insurer

You must report the flooding to the condo association and your insurer as soon as possible. The condo association typically has insurance that covers water damages in the building's common areas; your personal insurance policy, on the other hand, protects your belongings. Both may be involved depending on the origin and extent of the damage. (That’s why it’s a good idea to get a condo insurance quote ahead of time so you’re prepared if disaster strikes!)

Limit the damage and document the situation

Immediate damage control is vital to reduce the extent of the flooding. Move your belongings away from the affected area and use buckets, towels or tarps to contain the water. Open a window to ventilate the room and dry the moisture faster. And if possible, turn off the electricity in the affected areas to avoid any risk of electric shock or short-circuiting. This is especially important if the walls or ceilings are saturated with water.

Next, it’s time for documentation. Take detailed photos and videos of the flood damage, as well as the source of the problem, the affected areas and any damaged property. Note all the details of the situation: the date you discovered it, how the damage has evolved, and the steps you took to limit it. This visual evidence will come in handy when processing your insurance claim, since a well-documented file makes the claims process much easier (and it can speed up the settlement, which means less stress for you).

Carry out the necessary repairs

Once the water is under control and documented, repair work needs to begin. The type of work will depend on the source of the problem and the extent of the damage. For roofing problems, it may be necessary to replace damaged shingles or repair the waterproofing. If the infiltration is from a plumbing failure, the faulty pipe will need to be repaired or replaced.

On top of this, any building materials affected by water will often need to be replaced, including flooring, drywall or insulation. Preventive maintenance of your condo after repairs helps prevent the problem from happening again, plus acting quickly significantly reduces the risk of mould, which can cause health problems and further damage the building.

Roles and responsibilities of the condo association and co-owners

Duties of the condo association

First, the condo association must ensure regular maintenance and necessary repairs of the common areas. This includes hallways, elevators, the lobby, the facade, the roof and green spaces. Proper maintenance helps maintain the value of the condo and prevents costly deterioration.

The condo association's insurance policy must cover not only the common areas but also the original private portions (floors, walls, ceilings in their initial state). This liability insurance protects the entire structure against various risks such as fire, water damages or natural disasters.

The management of the common infrastructure also requires special attention. The condo association needs to ensure the proper functioning of the heating, ventilation, plumbing and electrical systems that serve the building.

Duties of co-owners

In Quebec, every co-owner must have adequate insurance coverage. Your home insurance policy should cover your personal property, any improvements made to your unit (high-end flooring, kitchen renovations and so on) and your personal liability.

How quickly you report a problem can make a big difference in an insurance claim, which means you’re required to inform the condo association and your insurer without delay of any incident that could cause damage to the condo. To avoid unpleasant surprises about the cost of certain repairs, co-owners must understand that maintenance inside their unit is their financial responsibility.

What is the self-insurance fund?

The self-insurance fund is a special cash reserve used to cover urgent expenses when property is damaged. This fund allows for immediate financing of necessary work without waiting for a settlement from the insurance company. It’s also used to pay the insurance deductible for a claim; in some cases, it can cover minor damages where it wouldn't make sense financially to use insurance.

Creating this reserve became mandatory in Quebec with the adoption of Bill 141. The minimum amount to be kept in this fund generally corresponds to the building's insurance policy deductible, but it can be higher if needed. This financial part of management becomes particularly important during damaging incidents that affect multiple units. The fund allows for quick intervention to limit the damage and fix the building as soon as possible.

What you need to know about Bill 16 and Bill 141

Quebec legislation has evolved significantly to strengthen condominium management. Having come into effect on August 14, 2025, Bill 16 requires the establishment of a maintenance logbook and a contingency fund study. This law requires every condo association to create a detailed multi-year maintenance plan.

For its part, Bill 141 introduced the mandatory self-insurance fund we just mentioned. This measure aims to better protect co-owners in the event of a loss and to facilitate financial management after an incident. These two pieces of legislation have transformed how condominium buildings are managed in Quebec. They might seem complex, but these laws aim to prevent building deterioration issues and financial problems that previously affected many unprepared condo associations.

Customize your condo insurance coverage with Sonnet

To protect your condo from water damage and ensure your peace of mind, tailored insurance coverage is essential. At Sonnet, we offer fully customizable condo insurance that you can get in just a few minutes, directly online. We’ve got flexible options that allow you to choose the coverage that exactly matches your needs, without compromise. Get a condo insurance quote from us and feel good about having your condo protected!

Frequently asked questions about water infiltration in a condo

How can I tell if the water is coming from the roof?

Several clues can tell you that your roof is responsible for your condo flooding. We recommend watching for shingles that are starting to curl or come loose, an obvious sign of wear. For gravel roofs, an annual inspection is necessary to spot any areas where water might be pooling. The presence of air bubbles on elastomeric membranes is also a warning sign.

Who has to pay for the repair work?

You should be aware that the condo association's insurance generally covers the common areas and the original private portions, while your personal insurance covers your belongings and any improvements you've made to the unit. As we discussed earlier, Bill 141 established a self-insurance fund to cover deductibles in the event of a claim. Water damages are the most common type of incident in condominium buildings, which is why it's so important to understand this division of costs. You should quickly assess the potential costs and coordinate claims between the different insurance policies to help make the reimbursement process easier.

What should I do in case of repeated flooding?

Act right away! It’s crucial to immediately reporting any problem to the condo association and your insurer to document the situation. Your condominium's maintenance logbook plays a necessary role in planning interventions and documenting repairs that have already been made.

Why should I check the seals on doors and windows?

Water finds its way through the smallest weaknesses. Frequently, faulty caulking or deteriorated seals around doors and windows can create entry points for moisture. The infiltration can spread beyond your unit, affecting exterior walls, hallways and common areas. An annual check allows you to spot cracks or deterioration early before they cause major problems. Your quick action in response to these signs not only protects your investment, but also prevents structural damage to the entire building.