14 April 2025

Toronto homeowners know that our city’s weather can be unpredictable. The old infrastructure and heavy rainfall often lead to basement flooding. A flooded basement can be overwhelming and damaging. It can also be dangerous. This can happen during a spring thaw, a summer downpour, or a plumbing disaster. In this guide, we will show you what to do if your basement floods. We will cover safety steps, cleanup, and how to prevent future problems. Let’s help you take control of the situation with confidence. 1. Prioritize Safety First Never rush into a flooded basement: We must address serious safety concerns first. Electrical Hazards Water conducts electricity. If flooding water in your basement has reached electrical outlets, your furnace, heaters, or electrical panel, you are at risk. This can lead to electrical shock or electrocution. What to do: For official guidance, consult the Electrical Safety Authority of Ontario (ESA) at esasafe.com. Gas/ Water Leaks and Appliances Toronto residents with natural gas systems must be extra cautious during a flood. If floodwater has submerged or touched your furnace, water heater, dryer, or other gas appliances, do not use them. Signs of a potential gas leak include: What to do: Pollutants and Contaminants Many Toronto basement floods come from sewer backups, which means the water may contain raw sewage. This poses a serious health risk because of harmful bacteria and viruses. Protective gear is a must: Don’t assume water is clean just because it looks clear—always take precautions. 2. Stop the Source of the Flood If it’s safe to do so, try to identify where the water is coming from. If you’re unsure of the source or feel unsafe, call a professional water damage restoration or plumbing company. 3. Document Everything for Flood Insurance Insurance companies expect detailed documentation of flood damage. What to do: Call your insurance provider as soon as possible. In Toronto, most home insurance policies do not cover flood damage automatically. However, you might have sewer backup or overland water protection if you choose it. Pro tip: Insurance companies might renew or extend your coverage if you take steps to prevent damage after a flood. 4. Begin Safe Cleanup Procedures Once you’ve ensured it’s safe and you’re properly protected, it’s time to start cleanup. Step 1: Remove Standing Water Depending on the amount of water, you may need: Do not use a regular household vacuum. Step 2: Dry and Disinfect Once water is removed: Step 3: Sort and Salvage You might need to go to a Toronto waste depot several times. Make sure to follow the City’s rules for disposal, especially for contaminated materials. 5. Professional Restoration Services in Toronto Flood cleanup can be overwhelming. In many cases, hiring a certified restoration company is the best move. Look for: A professional team can often save time, reduce stress, and help avoid long-term issues like mould, which can begin forming within 24-48 hours. 6. Prevent Future Flooding: Solutions for Toronto Home or Business Toronto’s older homes and infrastructure can make basement flooding more common, but there are many ways to lower your risk. Install a Backwater Valve These valves stop city sewer water from backing up into your home. Toronto has a Basement Flooding Protection Subsidy Program. This program can cover up to 80% of the cost, which is up to $1,250, to install a system. Learn more and apply here Upgrade or Add a Sump Pump A sump pump removes excess water before it enters your basement. Choose a model with: Improve Drainage Systems Around Your Home Renovate With Water in Mind If you’re rebuilding after a flood, consider these flood-resistant renovations: 8. Final Thoughts Flooding is one of the most stressful things a homeowner can face. This is especially true in a city like Toronto, where bad weather and city infrastructure often clash. But with quick action, the right safety measures, and proactive prevention, you can protect your property and your peace of mind. Remember: If you’re dealing with a flooded basement right now, don’t panic—just take it step by step. Need Emergency Help With a Flooded Basement in Toronto? Get in touch with a certified water damage restoration company right away. Time is of the essence when dealing with water intrusion and the risk of mold or structural damage. CPR24 Restoration covers all neighbourhoods in Toronto, including: Agincourt, Don Mills, North York, East York, York, Yorkville, York Mills, Forest Hill, Scarborough, Etobicoke, Downtown Toronto, Mimico, Danforth, High Park, etc.