Featured · client work
Lunarlink Solutions, Toronto
See it live
Every licensed electrical contractor in Ontario holds an ECRA/ESA licence with a seven-digit number, and that number must appear in their advertising, on their vehicles, and on quotes and invoices. The Electrical Safety Authority publishes a free public lookup, so the number can be verified in under a minute.
This is a plain-language summary, not legal advice. Rules change and thresholds get revised, so confirm anything you are relying on against the regulator's own page.
It licenses the contracting business, not the individual doing the work. Holding one requires the business to designate a Master Electrician, carry liability insurance, and stay in good standing. An electrician working without a contractor licence may be perfectly skilled and is still operating outside the framework that makes the work insurable.
Most electrical work in Ontario requires a notification filed with the authority before it starts, and produces a Certificate of Acceptance once it passes inspection. That certificate is what a home insurer or a buyer's lawyer asks for later. Work done without it can surface years afterwards, during a sale or a claim.
Displaying the licence number is a requirement in advertising, and a website is advertising. Putting it in the footer of every page, in text rather than inside an image, satisfies the rule and gives a homeowner something to verify. Sites that hide it invite the question they least want asked.
Free written audit. No call required, no commitment, no upsell at the end.
Reply within two business days
