Your Step-by-Step Guide for What to Do When Your Basement Floods in Ottawa

A flooded basement is one of the most stressful plumbing emergencies a homeowner in Ottawa can face. They can have a number of causes including heavy rainfall, a sewer backup, or a failed sump pump, but one thing remains the same. You must act fast to minimize damage and protect your home. If your basement floods in Ottawa, here’s exactly what to do and how our experts can help. 

Prioritize Safety Before Entering a Flooded Basement 

If water has filled your basement, do not enter until it’s safe. Water and electricity are a dangerous. Turn off your home’s power supply only if you can do so safely from a dry area. If you’re unsure, contact a licensed electrician or plumber’s emergency team. Once it’s safe, document the damage with photos for insurance purposes. 

Find the Source of the Flooding and Stop It If Possible 

Common causes of basement floods in Ottawa include blocked floor drains, overflowing eavestroughs, failed sump pumps, and sewer backups. If the flooding is due to a plumbing issue, such as a burst pipe or leaking fixture, shut off the main water supply and call Ottawa Plumbing and Heating immediately. Avoid using any plumbing fixtures until the cause is diagnosed. 

Call a Professional Plumber and Restoration Company Right Away 

Don’t try to handle serious flooding alone. Once you’ve stopped the water (if possible), call a licensed plumber and, if needed, a water damage restoration team. Ottawa Plumbing and Heating’s experienced professionals can assess the source, fix the problem, and coordinate with cleanup crews to prevent long-term structural or mould issues. The sooner you bring in expert help, the more you can limit damage and recovery costs. 

Start Water Removal and Drying to Prevent Mould 

This can be done yourself, or by hiring a restoration service. Use a wet/dry vacuum, pump, or mop to remove standing water. Once the water is cleared, use fans and dehumidifiers to dry out the space. Timing does matter. Mould can start to grow within 24–48 hours. Remove soaked items like carpets and furniture if they can’t be salvaged. 

If the damage is extensive, don’t attempt any of this yourself. Call a professional water damage restoration service. 

Contact Your Insurance Provider and Document the Damage 

Notify your insurer as soon as possible. Provide clear photos, videos, and notes. Ottawa homeowners should also check if their policy includes coverage for overland water or sewer backups, as many standard policies do not. Ottawa Plumbing and Heating can help you identify what kind of plumbing documentation or reporting may be needed. 

Prevent Future Basement Floods with Expert Plumbing Solutions 

After cleaning up, it’s time to focus on prevention so there isn’t a next time. Consider installing or upgrading a sump pump with a battery backup, adding a backwater valve, or scheduling a sewer line inspection. Our team at Ottawa Plumbing and Heating offers customized plumbing solutions and service plans designed specifically for Ottawa’s climate and infrastructure. 

Call Ottawa Plumbing and Heating for 24/7 Emergency Basement Flood Response in Ottawa 

When your basement floods, every minute counts. Ottawa Plumbing and Heating offers fast, professional plumbing and water mitigation services throughout the National Capital region. 

Call us any time—day or night—for trusted help when you need it most. We’re here to protect your home and restore your peace of mind.