A sewer back-up can flood basements and lower levels with contaminated Category 3 water. Fast, professional cleanup is essential to protect your health and return affected areas to a safe, habitable condition.
Why Category 3 water requires expert handling
Sewage carries bacteria, viruses, and pathogens that standard cleaning cannot remove. Porous materials, subfloors, and wall cavities must be assessed, sanitized, and dried properly to prevent illness, odours, and long-term damage.
Our sewer back-up services include
- Emergency extraction of sewage and standing water
- Category 3 cleanup, disinfection, and sanitization
- Moisture mapping and structural drying
- Removal of unsalvageable materials when required
- Documentation for insurance claims when applicable
When to contact ONRestorers
If you have basement flooding, drains backing up, strong sewage odours, or water rising from floor drains, call our team immediately. We respond 24/7 across the GTA with trained crews and proper containment protocols.