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Immediate response sewage backup cleanup with safe waste removal, thorough disinfection, and odor control to protect your property.
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With five strategically located offices across Ontario, our emergency sewage backup cleanup teams reach most GTA properties within 45 minutes. Whether you’re in Toronto, Aurora, Mississauga, or surrounding areas, our IICRC-certified technicians are on call 24/7 to respond to sewage backups, drain overflows, and contaminated water emergencies.
From aging clay pipes in older Toronto neighbourhoods to newer developments facing stormwater surges in York and Peel Regions, our teams understand the local infrastructure and respond fast to protect your property and health.




Our sewage backup cleanup services are designed to safely remove contaminated waste, disinfect affected areas, eliminate odors, and restore your property after sewer backups or drain overflows.

Immediate on-site evaluation to identify contamination levels and safety risks.

Isolating contaminated zones to prevent cross-contamination and exposure.

Controlled removal of sewage and wastewater using specialized equipment.

Safe disposal of unsalvageable materials affected by sewage contamination.

Hospital-grade disinfectants used to eliminate harmful bacteria and pathogens.

Advanced deodorization to eliminate persistent sewage odors at the source.

HEPA air scrubbers improve air quality and remove airborne contaminants.

Professional moisture detection to identify hidden contamination and damp areas.

Controlled drying of affected structures to prevent further damage and mold growth.

Final inspection to ensure the area is clean, safe, and ready for re-occupancy.

Transparent quotes with no hidden costs, so you know exactly what to expect.
We work directly with your insurance provider.
We may help reduce or manage your deductible.
Following sewage backup cleanup, professional repairs are completed to restore affected areas, protect your property’s value, and ensure long-term safety and durability.










See how our certified restoration teams bring homes and businesses back to life — one project at a time.
Posted on Google Gord PalbodTrustindex verifies that the original source of the review is Google. outstanding crew. thank you for an excellent job to Farzam and his crew.Posted on Google Khadijeh ChoupanTrustindex verifies that the original source of the review is Google. Thank you for an excellent job Majid. All that terrible cigarette smell and now it's all gone. It was like majic, Majid. Thank you. Thank you.Posted on Google Deb PyneTrustindex verifies that the original source of the review is Google. I had googled for heavy duty cleaning that was needed for my Brother, (has some physical issues) I supplied them with pictures. They sent me a quote & the job was scheduled immediately as it was time sensitive. I met the GTA Gentleman @ the front door of my brother’s condo. They went straight to work & did such an amazing job. I was thrilled with the out come as it was a big job. I would definitely recommend them to anyone!! Very professional, friendly & very respectfulPosted on Google Amin HamediTrustindex verifies that the original source of the review is Google. The 247-365 Restoration team responded quickly, arrived on time, and immediately took control of the situation. They were professional, well-organized, and clearly experienced in flood cleanup. Everything was explained step by step, and the cleanup was handled efficiently and carefully. A trustworthy choice for emergency water damage and flood restoration services.Posted on Google Sikander KanjiTrustindex verifies that the original source of the review is Google. Amazing experience, very professional, clean work, helpful and amazing crew.Posted on Google Tiana RoseTrustindex verifies that the original source of the review is Google. Nijen's team replaced and build a privacy wall on our back deck last Friday. They were professional, and efficient and we couldn't be happier with the end result. Thank you to Nijen and his team. We would definitely hire them again for our renovation needs and recommend them to everyone. TianaPosted on Google Mathew WhiteTrustindex verifies that the original source of the review is Google. I engaged First On Site as a preferred vendor through my insurance provider following an unsatisfactory experience with another restoration company. Understandably, I approached the process with some hesitation. From the outset, the team at First On Site demonstrated exceptional professionalism. They maintained clear and consistent communication, keeping me informed of all timelines and progress updates. Their responsiveness and attention to detail far exceeded my expectations. Upon arrival, the crew began work immediately and remained focused and diligent throughout the day. Their efficiency, professionalism, and respect for my property were commendable. Additionally, the team effectively liaised with my insurance company, ensuring the scope of work was completed exactly as described and to a high standard. I would not hesitate to recommend First On Site to anyone requiring disaster management or restoration services. Their commitment to quality and client satisfaction is truly exemplary.Posted on Google siddharth khannaTrustindex verifies that the original source of the review is Google. I called them at 7 am for an emergency basement pipe burst leakage and they sent out a crew within a couple of hours who knew exactly what needed to be done. They documented the damage thoroughly for insurance purposes and I faced no trouble. The team at GTA are professional and helpful. Totally recommend!Posted on Google Mark EsdaleTrustindex verifies that the original source of the review is Google. After a ice storm related basement flood the GTA team showed us what service meant!. They were here very quickly, with the proper drying equipment and some great staff members. They removed old carpeting/under padding and the bottom 12 inches of drywall from the affected flood area, installed and left drying machines, were back in a week to repair the drywall. We could not have asked for a better job, very glad we chose them.
Our sewage backup cleanup services are designed to safely remove contaminated waste, disinfect affected areas, and restore residential and commercial properties after sewer backups or drain overflows.
Immediate 24/7 emergency response is critical when sewage backups occur. Contaminated water can pose serious health risks within hours. Our certified sewage cleanup team responds quickly to contain affected areas, remove hazardous waste, and protect occupants from exposure.
Once on site, our IICRC-certified technicians assess contamination levels and affected areas using professional detection tools. We perform controlled sewage extraction, followed by industrial-grade disinfection, air scrubbing, and structural drying to restore safe indoor conditions.
Our highly trained team provides complete sewage backup cleanup services, including waste removal, sanitization, odor control, and post-cleanup drying. We manage the entire process to help property owners recover safely during emergency response situations with confidence.
Sewage backup emergencies often affect basements, utility rooms, and drain systems. Our emergency cleanup team responds quickly across our service areas to prevent further contamination and restore properties safely.
Taking the right steps before our emergency restoration team arrives can help reduce damage and improve the restoration process.
We offer limited service discounts for returning clients and qualified industry partners as part of our long-term service relationships.

Returning Customer
5% Off
We appreciate your loyalty. enjoy your exclusive discount!

Property Manager
7% Off
A token of appreciation for all the responsibilities you carry.

Insurance Adjuster
2% Off
We value your work. Here’s something extra!
50+ Restoration, Environmental, Inspection & Property Maintenance Services – 24/7 Across Southern Ontario