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⚡ 24/7 Emergency — Toronto & GTA

Flood Cleanup
Toronto

Emergency basement flood extraction, structural drying, mould prevention, and full property restoration. All water categories. On-site within 60 minutes anywhere in Toronto.

(825) 203-1411 — Call Now Free Assessment
Insurance direct billing
All flood types handled
5-Star Google rated
Why every minute counts
24h
Time until mould begins growing in water-damaged materials
48%
Of all Ontario home insurance claims are now water damage
3×
Higher restoration cost when cleanup is delayed beyond 24 hours
IICRC Classification

The 3 Categories of Flood Water — Why It Matters

Not all floodwater is the same. The water category determines how your property is cleaned, what materials can be salvaged vs. removed, and what PPE our technicians use. Misidentifying the category is the most common DIY cleanup mistake — and it can invalidate your insurance claim.

Category 1 — Clean Water
Sanitary water source
Originates from a clean water supply. Poses no immediate health threat but will degrade to Category 2 within 24–48 hours if untreated. Some salvageable materials depending on contact time.
Sources: burst supply pipes, overflowing bathtubs, toilet tank overflow (no contamination), appliance supply lines.
Category 2 — Grey Water
Contaminated — not sewage
Contains chemicals, biological agents, or microorganisms. Can cause discomfort or illness if ingested. Full PPE required. Porous materials typically need removal. Will become Category 3 within 48 hours.
Sources: overflowing washing machines, dishwashers, toilet overflow (urine, no feces), sump pump failure, aquarium leaks.
Category 3 — Black Water
Biohazard — serious health risk
Grossly contaminated. Contains pathogens, bacteria, viruses, and toxic agents. All contacted porous materials must be removed. Hospital-grade disinfection required throughout. Never attempt DIY cleanup.
Sources: sewer backup, overflowing toilet with feces, river or storm flooding, roof leaks with animal contamination.
Common causes

8 Common Causes of Basement Flooding in Toronto

Understanding the cause of your flood determines the correct cleanup approach — and is essential for your insurance claim. IntelliHomes identifies the source as part of every initial assessment.

Sewer backup
Toronto's combined sewer system overflows during heavy rain, backing sewage up through floor drains and toilets. Category 3 biohazard — specialist cleanup required.
Burst or frozen pipes
Toronto's freeze-thaw cycles cause pipe bursts — especially in uninsulated exterior walls and crawlspaces. Can release hundreds of litres per hour before detection.
Sump pump failure
Power outages during storms — exactly when sump pumps are needed most — cause failure and rapid basement flooding. Battery backup systems prevent this entirely.
Overland flooding (storm water)
Surface water from heavy rainfall enters through windows, doors, window wells, and foundation openings. Increasing in frequency due to Toronto's intensifying summer rainfall events.
Foundation cracks
Cracks in poured concrete or block foundations allow groundwater to seep in — particularly during spring snowmelt or sustained rainfall. Often worsens year-over-year without repair.
Appliance failure
Washing machines, dishwashers, water heaters, and refrigerator ice-makers can fail without warning. Supply line failures release large volumes of water rapidly.
Failed weeping tile system
Pre-1960 Toronto homes often have clay weeping tile systems that have collapsed or deteriorated. During heavy rain, water pools against the foundation with no drainage path.
Groundwater seepage
Rising water table after heavy precipitation or spring snowmelt can force groundwater through porous foundation materials. Gradual onset, often initially overlooked until significant damage has occurred.
What to do right now

Basement Flooded? Do These 6 Things Immediately

Your first 30 minutes determine a large part of the total damage and cost. Follow these steps in order.

1
⚠️ Do NOT enter standing water
Water and live electrical circuits are a fatal combination. Confirm power is off before entering any flooded area. If your electrical panel is in the flooded zone, call Toronto Hydro before entering.
2
Shut off power to affected zones
Turn off breakers serving the basement and affected areas from a dry, safe location. If you cannot safely access the panel, leave the building and call for help.
3
Stop the water source
Burst pipe: shut off your home's main water supply valve. Appliance: unplug and close the supply valve. Sewer backup or storm water: do not attempt to stop — call immediately.
4
Call IntelliHomes now
Call (825) 203-1411 — 24/7, 365 days a year. On-site within 60 minutes. Every hour of delay increases damage, cost, and mould risk. Do not wait until morning.
5
Document from a safe distance
Photograph and video all visible water, damage, and the water source — from outside the flooded area. Do not enter to get a better photo. This documentation is critical for your insurance claim.
6
Call your home insurer
Open a claim immediately. Confirm whether your policy covers the flood source (burst pipe, sewer backup, overland flooding). Keep all receipts for emergency expenses — most policies cover additional living costs.
Our process

How IntelliHomes Handles Flood Cleanup in Toronto

A systematic 6-stage process built to IICRC S500 standards — from emergency extraction to completed restoration, handled by one company.

Emergency assessment & safety
On arrival, technicians assess the flood source, water category, and extent of affected areas using thermal imaging cameras and professional moisture meters. Safety hazards are identified and controlled before any work begins.
Within 60 min of your call
Water extraction
Industrial truck-mounted and portable extraction units remove standing water rapidly. Submersible pumps handle large volumes. Wet/dry extractors remove water from carpet, sub-floor, and hard-to-reach areas. Category 3 water is handled under biohazard protocols with sealed waste containment.
Day 1
Contaminated material removal
All materials that cannot be effectively dried or decontaminated — wet drywall, insulation, carpet, affected sub-flooring — are removed and properly disposed of. Everything is photographed for insurance documentation before removal.
Day 1–2
Structural drying
Commercial-grade LGR dehumidifiers, high-velocity air movers, and HEPA air scrubbers create a controlled drying environment. Moisture readings are taken at multiple points daily and logged. Drying is complete when moisture levels return to pre-loss reference readings — not before.
3–5 days
Decontamination & odour removal
For Category 2 and 3 water, all remaining surfaces are treated with EPA-registered antimicrobial agents. Hydroxyl generators eliminate odour at the molecular level — not just masking it. Air quality testing confirms successful decontamination before enclosure.
Day 2–3
Full property restoration
Once certified dry and decontaminated, IntelliHomes restores your property to its pre-loss condition — new drywall, insulation, flooring, paint, and all required finishing work. One company manages the entire project, eliminating the coordination burden of multiple contractors.
1–2 weeks
Why choose IntelliHomes

Toronto's Certified Flood Cleanup Specialists

  • On-site within 60 minutes — anywhere in Toronto and the GTA, any time of day or night, 365 days a year.
  • IICRC-certified technicians — Water Restoration Technician (WRT) and Applied Structural Drying (ASD) certified on every job.
  • Advanced detection technology — thermal imaging cameras and calibrated moisture meters find hidden water behind walls and under floors that visual inspection misses.
  • Direct insurance billing — we work with all major Ontario insurers including Intact, Aviva, Wawanesa, Economical, Travelers, and RSA Group.
  • Complete documentation package — moisture logs, thermal scans, photo evidence, material inventory, and drying reports for your insurance adjuster.
  • End-to-end restoration — from emergency extraction through final paint. One company, one point of contact, no coordination gaps.
  • Subsidy guidance — we help eligible homeowners access the City of Toronto Basement Flooding Protection Subsidy Program to prevent future events.
Certifications & Credentials
IICRC Certified
WRT Certified
ASD Certified
Fully Insured
Thermal Imaging
Ontario Licensed
Biohazard Certified
5-Star Rated
All IntelliHomes technicians are trained to IICRC S500 Standard for Professional Water Damage Restoration. We use only calibrated professional equipment — not consumer-grade tools — for moisture detection, extraction, and drying.
Insurance

What Does Home Insurance Cover for Basement Flooding in Toronto?

Coverage depends entirely on the flood source and what endorsements you have added to your Ontario home insurance policy. Standard policies do not automatically cover most types of basement flooding.

Flood cause Standard policy Required endorsement Covered?
Burst supply pipe inside home Usually covered as "sudden and accidental" water damage None needed Usually yes
Appliance overflow (dishwasher, washing machine) Covered under standard water damage provisions None needed Usually yes
Sewer or drain backup Not covered under standard policy Sewer backup endorsement required Only with endorsement
Overland flooding (storm water through openings) Not covered under standard policy Overland flood endorsement required Only with endorsement
Groundwater seepage through foundation Not covered — considered maintenance issue Groundwater endorsement (if available) Only with endorsement
Sump pump failure Often excluded Sewer backup or overland endorsement may apply Depends on policy
Gradual leaking / lack of maintenance Not covered — preventable damage exclusion applies No endorsement covers gradual damage Not covered

Coverage terms vary between insurers. IntelliHomes provides complete documentation to support your insurance claim regardless of the flood source. Contact your insurer to confirm your specific coverage before cleanup begins.

Cost guide

What Does Flood Cleanup Cost in Toronto? (2026)

Costs depend on the flood category, the volume of water, affected area size, and how much material removal and restoration is required. In 2026, the average professional basement flood cleanup in Toronto ranges from $2,500 to $10,000+.

Minor flood — single room
$2,500–$4,000
Clean water from burst pipe or appliance. Limited area. Extraction, drying, minimal material removal. No sewage involvement.
Moderate flood — partial basement
$4,000–$7,000
Larger affected area. Some drywall and flooring removal. Structural drying. Category 1 or 2 water. Basic restoration.
Major flood — full basement
$7,000–$10,000+
Full basement affected. Significant material removal. Full drying cycle. Full restoration of walls, flooring, and finishes.
Sewage involvement
$10,000–$15,000+
Category 3 biohazard protocols. All porous materials removed. Full decontamination. Odour remediation. Complete restoration.
All estimates are for Toronto residential properties. Final cost is confirmed at on-site assessment and written estimate before work begins. The average cost of a flooded basement in Ontario is over $40,000 when restoration costs are included — home insurance with appropriate endorsements protects against the majority of this exposure. IntelliHomes provides Xactimate-compatible scope of loss documentation for all insurance claims.
City of Toronto Program — Updated May 2026

Basement Flooding Protection Subsidy Program

The City of Toronto's Basement Flooding Protection Subsidy Program (BFPSP) was expanded as of May 1, 2026. Eligible homeowners can receive financial subsidies for flood prevention installations — totalling up to $5,650 per property. IntelliHomes can advise on eligible measures and connect you with approved contractors.

City of Toronto official program details →
  • Backwater valve installationup to $3,400
  • Sump pump installationup to $1,750
  • Plumbing vulnerability assessmentup to $500
  • Maximum per property$5,650
Toronto-specific

Why Toronto Has So Many Basement Floods

Toronto's infrastructure age, geography, and climate create conditions for some of the highest basement flooding rates of any major Canadian city. Our technicians know the specific patterns and risks neighbourhood by neighbourhood.

Combined sewer overload
Toronto manages approximately 10,900 km of sewer mains, much of it combined stormwater and sanitary sewage infrastructure built for a population roughly half of today's. During a heavy 2026 downpour, these systems can reach capacity in under 20 minutes — creating near-simultaneous backup events across entire neighbourhoods.
Intensifying summer storms
Toronto's Lake Ontario weather system drives increasingly severe short-duration rainfall events. The July 2024 flooding event alone caused over $940 million in insured damage across southern Ontario. Events exceeding 50mm/hour are becoming more common and routinely overwhelm even well-maintained drainage systems.
High-risk neighbourhoods
Etobicoke-Lakeshore (Ward 6) consistently records the highest basement flooding call volumes in the city due to its proximity to Lake Ontario and concentration of mid-century combined sewer infrastructure. East York, parts of North York, and Scarborough are also significantly affected. Knowing your neighbourhood's risk profile guides both cleanup and prevention decisions.
Aging pre-1970 housing stock
A large proportion of Toronto's residential housing was built before 1970, when drainage standards were less stringent. Deteriorated clay weeping tile, original cast-iron stack pipes prone to root intrusion and corrosion, and pre-code foundation waterproofing all contribute to higher flooding frequency and severity in these properties.
Flood prevention

How to Reduce Your Risk of Future Basement Flooding

After IntelliHomes restores your property, we assess your specific flood risk and recommend preventive measures. Many are eligible for the City of Toronto subsidy program.

  • Install a backwater valve — prevents sewer backup from entering your home; eligible for up to $3,400 City of Toronto subsidy
  • Install a battery-backup sump pump — keeps operating during power outages, which frequently coincide with the storms that cause flooding; eligible for up to $1,750 subsidy
  • Repair foundation cracks — both interior and exterior waterproofing options available depending on the crack type and severity
  • Improve lot grading — ensure the ground slopes away from your foundation by at least 6 inches over 10 feet
  • Clean eavestroughs and downspouts annually — blocked gutters cause water to pool against the foundation
  • Install window well covers on basement windows below grade — prevents overland flooding from entering directly
  • Add sewer backup and overland flood endorsements to your home insurance policy — review with your broker after any flood event
Toronto Flooding: 2026 Data
48%
Of all Ontario home insurance claims are now water-damage related (Insurance Bureau of Canada)
$940M
Insured damage from the July 2024 Toronto-area flash flood event alone
$40K+
Average total cost of a flooded basement including restoration (Insurance industry data)
$5,650
Maximum City of Toronto BFPSP subsidy available per property in 2026
Service area

Flood Cleanup Across Toronto & the GTA

IntelliHomes responds to basement flooding emergencies throughout Toronto and the Greater Toronto Area. Our nearest crew is dispatched immediately — any time, any day.

Downtown Toronto
North York
Scarborough
Etobicoke
East York
York
Mississauga
Brampton
Markham
Richmond Hill
Vaughan
Ajax
Pickering
Whitby
Oshawa
Oakville
Customer reviews

What Toronto Homeowners Say

★★★★★

"Our basement flooded after the heavy rain in August — about 6 inches of water in the whole lower level. IntelliHomes was there in under an hour. They extracted everything, set up their drying equipment, and the whole restoration was done in 10 days. Incredible service and the insurance documentation made our claim completely painless."

Jennifer M. — Etobicoke homeowner
★★★★★

"Burst pipe at 3am in January. I called IntelliHomes and they were at my North York home by 4am. Professional, calm, thorough. They found moisture behind a wall that I never would have detected. Full restoration done including drywall and painting — looks better than before the flood. Highly recommend for anyone in the GTA."

Robert C. — North York
★★★★★

"After a major storm, our finished basement was completely flooded. IntelliHomes showed up quickly, explained every step of the process, and handled everything directly with our insurance company. The final restoration is beautiful. They also told us about the City subsidy program which saved us thousands on a backwater valve. Couldn't ask for more."

Sunita P. — Scarborough
FAQ

Flood Cleanup Toronto — Common Questions

How much does flood cleanup cost in Toronto in 2026?
Professional basement flood cleanup in Toronto ranges from $2,500 for a minor clean-water incident to $15,000+ for a major flooding event with sewage involvement or a fully finished basement requiring complete restoration. The 2026 average for professional cleanup is $2,500–$10,000 for most residential scenarios. Most costs are covered by home insurance if you have the appropriate endorsements. IntelliHomes provides a written estimate at the on-site assessment before any work begins.
What should I do immediately after a basement flood?
1. Do not enter standing water until you confirm power is off to the affected area. 2. Shut off breakers to the basement from a dry, safe location. 3. Shut off the main water supply if the source is a burst pipe. 4. Call IntelliHomes at (825) 203-1411 immediately — every hour of delay increases damage and mould risk. 5. Document damage from a safe distance for your insurance claim. 6. Call your insurer to open a claim. Do not attempt to clean up Category 2 or Category 3 water yourself.
Does home insurance cover basement flooding in Toronto?
It depends on the flood source and what endorsements your policy includes. Burst pipe and appliance overflow are typically covered under standard policies. Sewer backup requires a specific sewer backup endorsement. Overland flooding (storm water entering through openings) requires an overland flood endorsement. Groundwater seepage requires a groundwater endorsement. Most standard Ontario home insurance policies do not automatically cover storm flooding or sewer backup. Call your insurer before cleanup to confirm coverage.
Is it safe to clean up a flooded basement myself?
It depends entirely on the water category. Category 1 (clean water from a burst supply pipe) — you can safely remove standing water before professional help arrives if electrical safety is confirmed. Category 2 (grey water) and Category 3 (black water including sewer backup) — no. These contain pathogens and contaminants that pose real health risks. Professional PPE, equipment, and disposal protocols are required. Additionally, hidden moisture behind drywall and under sub-floors requires professional moisture meters to detect — what looks dry is typically not, and improper drying leads directly to mould growth.
How long does flood cleanup and restoration take?
Emergency water extraction is completed on the day of the event. Structural drying takes 3–5 days with daily moisture monitoring. If contaminated materials need removal, this adds 1–2 days. Complete restoration — replacing drywall, insulation, flooring, and finishes — typically takes 1–2 weeks. Total project duration from emergency call to completed restoration is usually 2–3 weeks, depending on the scope of damage and required restoration work.
Why does basement flooding happen so often in Toronto?
Toronto's aging combined sewer system carries both stormwater and sanitary sewage in the same pipes and was built for a population roughly half of today's. Increasingly intense summer rainfall events regularly overwhelm the system, causing sewer backup across multiple city blocks simultaneously. Aging clay and cast-iron pipe infrastructure, deteriorated weeping tile systems in pre-1970 homes, flat urban topography, and significant new impervious surface from development all compound the problem. Water damage now accounts for approximately 48% of all home insurance claims in Ontario.
What is the City of Toronto Basement Flooding Protection Subsidy?
The City of Toronto's BFPSP provides financial subsidies for homeowners to protect against future flooding. As of May 2026, up to $3,400 is available for backwater valve installation, up to $1,750 for sump pump installation, and up to $500 for a plumbing vulnerability assessment — for a maximum of $5,650 per property. This program requires a licensed contractor. IntelliHomes can advise on eligibility and recommend approved contractors for subsidy-eligible work.
What equipment does IntelliHomes use for flood cleanup?
We use professional-grade LGR (Low Grain Refrigerant) dehumidifiers, high-velocity air movers, truck-mounted and portable extraction units, thermal imaging cameras for moisture mapping, calibrated moisture meters for daily drying monitoring, HEPA air scrubbers for air quality, hydroxyl generators for odour remediation, and EPA-registered antimicrobial agents for Category 2 and 3 decontamination. All equipment is commercial-grade — significantly more effective than consumer-grade alternatives.
Related services & resources
🚰 Sewer Backup Toronto 💧 Water Damage Restoration ⚡ Emergency Water Damage 🏢 Condo Water Damage Guide 📋 Insurance Coverage Ontario 🔬 How Fast Does Mould Grow?

Flooded Basement in Toronto? Call Now.

Every hour matters. Our IICRC-certified team is on standby 24/7 — on-site within 60 minutes anywhere in Toronto and the GTA.

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