What should I do if my basement is flooding?

Shut off your main water supply immediately and get everyone out of the flooded area. This is a plumbing emergency that requires immediate action to prevent extensive water damage and potential electrical hazards.

First, ensure safety by turning off electricity to the basement at your main panel if you can do so safely from a dry area. Never enter standing water if electrical outlets, appliances, or the electrical panel could be submerged. If the water is more than a few inches deep or rising quickly, evacuate the basement immediately.

Locate and shut off your main water valve - it's typically near where the water line enters your home, often by the water meter or in a utility room. Turn it clockwise to close. If you can't find it or it won't turn, call Ottawa Pro Plumbing immediately as we provide 24/7 emergency service for situations exactly like this.

Identify the source if possible - is water coming from a burst pipe, backed up floor drain, sewer line, or external flooding? For burst pipes, the main shutoff will help. For sewer backups, avoid using any water in the house as this will worsen the backup. Document everything with photos for insurance purposes, but only if you can do so safely.

In Ottawa's climate, basement flooding often occurs during spring thaw or heavy rainfall when municipal systems are overwhelmed. If this appears to be sewer backup (dark, smelly water), this is a health hazard requiring professional cleanup. Many Ottawa homes benefit from backwater valve installation to prevent future sewer backups - the City of Ottawa even offers rebates for this upgrade.

Call a licensed plumber immediately - basement flooding can cause structural damage, mold growth, and contamination. We provide emergency flood response throughout Ottawa and can help identify the cause, make repairs, and recommend prevention measures. Time is critical in flood situations to minimize damage and health risks.

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