Basement Sewage Cleanup Specialists in Toronto & GTA
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Basement Sewage Cleanup & Restoration – 24/7 Emergency Service
When sewage water backs up into your basement, every second counts. At DGI Waterproofing, we provide fast, professional basement sewage cleanup to restore your home safely. Whether it’s a burst sewer line, heavy rainfall backup, or clogged drain overflow, our 24/7 rapid response team will be there within an hour to remove contaminated water, sanitize affected areas, and prevent long-term damage.
Dealing with sewage water damage is more than just a messy inconvenience, it’s a serious health hazard that requires expert cleanup and disinfection. Our certified technicians use advanced decontamination, drying, and odor removal techniques to ensure your basement is safe, dry, and livable again.
Why Choose DGI Waterproofing for Basement Sewage Cleanup?
- 24/7 Emergency Cleanup – Immediate response, available day or night.
- Advanced Sewage Removal & Water Extraction – Industrial-grade pumps & vacuums.
- Full Decontamination & Sanitization – Eliminates bacteria, viruses & mold risks.
- IICRC-Certified & WSIB-Insured Experts – Professional, safety-trained specialists.
- Comprehensive Waterproofing Solutions – Prevent future backups & flooding.

How We Clean & Restore Your Basement After a Sewage Backup

Our Basement Sewage Cleanup Process – Step-by-Step Restoration
When a sewage backup floods your basement, quick and professional action is necessary to remove contaminated water, sanitize the area, and prevent long-term damage. At DGI Waterproofing, we use advanced sewage cleanup methods to restore your flooded basement to a safe and livable condition. Our team specializes in fast-response sewage backup restoration, ensuring that bacteria, viruses, and foul odors are completely eliminated.
Best Methods For Basement Sewage Backup & Cleanup
- High-Powered Water Extraction – Using industrial-grade pumps and vacuums, we remove standing sewage water quickly to prevent further absorption into floors, walls, and furniture.
- Deep Sanitization & Disinfection – Sewage water is a serious health hazard, carrying E. coli, Hepatitis A, and other dangerous bacteria. We use hospital-grade disinfectants to kill harmful pathogens and prevent mold growth.
- Odor Removal & Air Purification – Sewage backups leave behind strong, unpleasant odors that linger in the air and surfaces. Our team uses high-efficiency air scrubbers and deodorizers to eliminate smells at the source.
- Structural Drying & Dehumidification – Moisture trapped in walls, flooring, and insulation can lead to mold growth and structural damage. We deploy industrial dehumidifiers and air movers to ensure your basement is completely dry.
- Waterproofing & Future Prevention – To protect your basement from future sewage backups, we install sump pumps, backwater valves, and interior & exterior drainage systems. By waterproofing your foundation, you can prevent future sewage backups from happening again.
What Causes Basement Sewage Backups?
Common Causes of Basement Sewage Backups & Flooding
Basement sewage backups often result from blocked sewer lines, tree roots, or heavy rain, leading to contaminated water, foul odors, and costly damage. Homes with older plumbing or poor drainage are especially vulnerable.
Top Causes of Basement Sewage Backups & Flooding
- Clogged Sewer Drains – A leading cause of basement sewage flooding, caused by grease buildup, hair, wipes, or debris blocking water flow.
- Tree Root Intrusion – Tree roots invade sewer pipes, causing cracks, blockages, and backups.
- Heavy Rain & Overloaded Sewer Systems – Excess stormwater can overwhelm sewer lines, leading to emergency basement sewage backups. Without a well-installed sump pump system, basements can be flooded.
- Broken or Collapsed Sewer Pipes – Older clay or cast-iron pipes crack over time, causing sewage to back up into basement drains.
- Faulty or Missing Backwater Valves – Without a working backwater valve, city sewer overflows can send wastewater back into your home.
- Hydrostatic Pressure & Poor Drainage – Groundwater pressure forces water through basement walls, leading to sewage backup through basement floor drains.
Early warning signs include slow drains, foul odors, and toilet backups. Call our 24/7 basement waterproofing contractor team before the problem worsens.

DGI Waterproofing Service Areas
DGI Waterproofing is a trusted name for basement sewage backup and cleanup in Toronto and surrounding areas.