How do I file a complaint against a contractor in Ontario?

If you need to file a complaint against a contractor in Ontario, your options depend on the type of contractor and the nature of the issue - here's exactly how to proceed from Ottawa.

Consumer Protection Ontario (Most Common Route)

For general contractors, renovators, and most construction disputes, start with Consumer Protection Ontario. Call 1-800-889-9768 or file online at ontario.ca/consumer. They handle complaints about:

• Unfair business practices


• Contract disputes


• Poor workmanship claims


• Deposit issues


• Door-to-door sales violations

Consumer Protection Ontario can investigate, mediate disputes, and potentially order refunds or corrections. They also track complaint patterns to identify problem contractors.

Trade-Specific Complaint Processes

For Electrical Contractors: Contact the Electrical Safety Authority (ESA) at 1-877-372-7233 or file online at esasafe.com. ESA investigates licensed electrical contractors for safety violations, code non-compliance, or unprofessional conduct. They can suspend or revoke licenses.

For Gas/HVAC Contractors: File with the Technical Standards and Safety Authority (TSSA) at 1-877-682-8772 or tssa.org. TSSA handles complaints about gas technicians, HVAC installers, and other technical trades they regulate.

For Home Inspectors: Contact the Ontario Association of Home Inspectors (OAHI) if your inspector is a member, or Consumer Protection Ontario for non-members.

City of Ottawa Building Department

If the work violates building codes or was done without proper permits, contact City of Ottawa Building Code Services at 613-580-2424. They can:

• Issue orders to correct code violations


• Stop work orders for unpermitted construction


• Require proper permits and inspections


• Fine contractors for code violations

What Information to Gather First

Before filing any complaint, document everything:

• Original contract and any change orders


• All payments made (receipts, cancelled checks)


• Photos of the work and any problems


• Written communications (emails, texts)


• Contractor's business information and license numbers


• Timeline of events

Legal Action Considerations

For disputes over $35,000, you'll need Superior Court. For smaller amounts, Small Claims Court (maximum $35,000) is more accessible. The courthouse in Ottawa is at 161 Elgin Street. Filing fees range from $102-$372 depending on claim amount.

Consider legal action if:

• The contractor abandoned the job


• Work is substantially defective


• You've suffered significant financial loss


• Other complaint processes haven't resolved the issue

Construction Lien Protection

If you haven't paid final payment yet, hold back 10% for 60 days after substantial completion as required by Ontario's Construction Act. This protects you from liens by subcontractors or suppliers the contractor didn't pay.

Red Flags for Future Reference

Watch for contractors who:

• Demand full payment upfront


• Don't provide written contracts


• Lack proper licensing or insurance


• Go door-to-door soliciting work


• Pressure you to sign immediately

Getting Help with Your Complaint

The Better Business Bureau (bbb.org) can also help mediate disputes, though they have no enforcement power. For complex legal issues, consider consulting with a construction lawyer - many offer free initial consultations.

Start with Consumer Protection Ontario for most issues, but don't hesitate to file with multiple agencies if the contractor violated regulations in several areas. The key is acting quickly while evidence is fresh and before any limitation periods expire.