How long do I have to file a complaint against a contractor?

In Ontario, you typically have 2 years from when you discovered (or should have discovered) the problem to file a complaint against a contractor, but this varies depending on the type of complaint and where you file it.

Consumer Protection Complaints

For general contractor disputes in Ontario, the Limitation Act gives you 2 years from the date you knew or ought to have known about the issue. This applies to most contract disputes, poor workmanship, or breach of contract situations.

Tarion Warranty Claims (New Homes)

If your contractor is Tarion-registered for new home construction:

• Year 1: Report defects within 30 days of possession or discovery


• Year 2: Submit claims by the end of your second year


• Major structural defects: Up to 7 years from possession date

ESA Electrical Complaints

For electrical work issues in Ottawa:

• Safety concerns: Report immediately to ESA at 1-877-372-7233


• Workmanship issues: File within reasonable time of discovery


• Permit violations: No specific time limit for safety violations

TSSA Gas/HVAC Complaints

For gas or HVAC contractor issues:

• Safety issues: Report immediately to TSSA at 1-877-682-8772


• Installation problems: File complaints promptly after discovery


• Contact TSSA Ontario at tssa.org for complaint forms

City of Ottawa Building Code Violations

For permit or building code issues:

• Active construction: Report violations immediately to 613-580-2424


• Completed work: File complaints within reasonable time of discovery


• City of Ottawa By-law Services can investigate unpermitted work

What Counts as "Discovery"

The 2-year clock typically starts when you:

• First noticed the problem


• Should have reasonably noticed the issue


• Received an inspection report identifying defects


• Had the work "completed" by the contractor

Protecting Your Rights

Document everything immediately:

• Take photos of all issues


• Keep all contracts, receipts, and communications


• Get written estimates for repair costs


• File complaints with relevant authorities promptly

Don't wait - even though you may have 2 years legally, evidence can disappear, contractors can move or go out of business, and witnesses' memories fade.

Where to File Complaints

Consumer Protection Ontario: ontario.ca/consumer (general contract disputes)

Better Business Bureau: bbb.org (mediation services)

Small Claims Court: Up to $35,000 in damages

ESA: esasafe.com (electrical work issues)

TSSA: tssa.org (gas/HVAC issues)

The key is acting quickly - while you may have up to 2 years legally, your practical ability to resolve issues decreases significantly over time. Start the complaint process as soon as you identify problems with your contractor's work.