ESA Authorized Contractor: What the Program Really Means

By Zvonko Lipovac, Master Electrician, Apollo Electric Inc. · ECRA/ESA 7009372 · Last updated: 1 October 2026

ESA authorized contractor is a phrase homeowners hear in a sales pitch and almost never hear explained, so here is the explanation from a contractor who is in the program. Apollo Electric Inc. is a member, and we will tell you honestly what that does and does not mean, because the Electrical Safety Authority is already on record about it.

Apollo Electric has worked across Hamilton, Stoney Creek, Ancaster and the surrounding area for over 30 years under ECRA/ESA licence 7009372. This page covers the credential that is legally required, where being an ESA authorized contractor sits beside it, how to verify both in two minutes, and the warning sign that a contractor is not licensed at all.

The Licence Is the Law, the Program Is Voluntary

The Electrical Safety Authority licenses electrical contracting businesses in Ontario, and that licence is mandatory. In the regulator's own words, Licensed Electrical Contractors are the only businesses, with certain exemptions, legally authorized to do electrical work in your home or facility. The licence carries a seven digit number in the format ECRA/ESA 7999999, and it must appear on estimates, invoices, business cards and vehicles.

Becoming an ESA authorized contractor sits on top of that licence. The regulator describes the Authorized Contractor Program as voluntary, open to Licensed Electrical Contractors and qualified HVAC contractors in Ontario, with membership criteria. The same customer material then says what most contractors leave out of their marketing: the program is not a quality designation.

We would rather quote that than hide it. A licensed contractor who is not an ESA authorized contractor can do excellent work, and a member can do poor work. What membership changes is how the regulator inspects the job, which is covered further down.

So when you compare quotes, the ECRA/ESA licence number is the gate. Everything else, including membership, our 30 years, and our top three rating in Hamilton, is evidence you weigh afterwards.

How Do You Check If Someone Is an ESA Authorized Contractor?

You can confirm both the licence and the program membership yourself, for free, in under two minutes. Do it before you let anyone open a panel.

1. Ask for the seven digit ECRA/ESA number. A licensed business gives it immediately and it is already printed on the estimate. Hesitation here is the whole answer.
2. Run it through the regulator's contractor locator. The Electrical Safety Authority contractor locator tool searches by business name or by licence number and tells you whether the licence is current.
3. Call 1-877-372-7233 if anything looks off. That is the regulator's own line, not a third party directory.
4. Check that the name on the licence matches the name on the quote. A licence belongs to a business, not to a person, and borrowing someone else's number is a real practice.
5. Ask directly whether they are an ESA authorized contractor. A member will say yes and will not oversell it.

Apollo Electric Inc. is licence 7009372. Look it up before you call us. We would rather you verified a stranger than trusted a stranger, and that applies to us as much as to anyone quoting against us.

Audit Based Inspection, and What It Changes

For a contractor outside the program, notifiable work is inspected by the Electrical Safety Authority job by job. For an ESA authorized contractor, inspection moves to a sampling model. The regulator's own customer material gives examples: roughly one in ten air conditioner installations and one in four renovations are selected, rather than all of them.

That cuts both ways.

• It is faster. You are not waiting on an inspector's calendar for every job before the work can be signed off.
• It puts more weight on the contractor. If one job in four is inspected, the other three are only as good as the person who did them. That is precisely why the regulator refuses to call this a quality designation.
• Membership is conditional. An ESA authorized contractor whose sampled work keeps failing does not stay in a program built on audits.

Our view, stated plainly: audit based inspection is a scheduling benefit for you and an accountability test for us. It is not a shortcut around the Ontario Electrical Safety Code, and a contractor who describes it as one has told you something important about how they work.

Getting Power Back On Faster

This is the one benefit a homeowner feels directly, and it is worth knowing before an emergency rather than during one.

An ESA authorized contractor can work with the local electric utility to reconnect power without an Electrical Safety Authority inspection in many circumstances. That matters most on service work: a damaged mast after a storm, a burned service entrance, a meter base that has to come off, or a panel replacement where the utility has pulled the connection.

Outside the program, that reconnection usually waits on an inspection slot. Inside it, in many cases, it does not. If your power is off and the problem is at the service, that difference is measured in hours of your life. It is the reason our emergency electrical work in Hamilton and our panel and service upgrades move as quickly as they do.

Two honest caveats. The phrase is in many circumstances, not always, and the utility has the final say on its own equipment. And it applies to the reconnection, not to the work itself, which still has to be correct and still has to be reported.

Notification of Work, and the Red Flag to Watch For

Notifiable electrical work must be reported to the Electrical Safety Authority before the work starts, and the filing is the contractor's job. It is not yours, and that single fact is the most useful thing on this page.

The regulator names the warning sign explicitly: if a contractor asks you to file the notification of work in your own name, treat it as a sign they may not be licensed. An unlicensed person cannot file it, so they need your name on the paperwork instead, which leaves you holding the liability and the bill for anything that has to be put right.

That is not theoretical. Unreported work surfaces years later at the worst moment, when the house is being sold or when an insurer is deciding whether a fire claim gets paid. We see it most often on older homes being rewired, where a previous owner hired cheap and nothing was ever filed.

The sequence on a legitimate job is short: an ESA authorized contractor or any other licensed contractor quotes, files the notification, does the work, has it inspected or sampled, and hands you documentation. If a step is missing, ask why before the work starts rather than after.

Contractor, Certified Electrician, Master Electrician

Three titles, three different meanings, and only one of them can be hired.

Title	What it is	Can you hire them directly?
Licensed Electrical Contractor	A licensed business holding a seven digit ECRA/ESA number	Yes. This is the only one you can legally hire for electrical work in your home
Certified Electrician	An individual holding a Certificate of Qualification in the trade	No. They work for a licensed business
Master Electrician	An individual qualification a contracting business is required to have behind it	No, not as an individual. The business is what holds the licence

This is why a skilled tradesperson working weekends out of a personal vehicle is not a lawful option in Ontario, however good they are with a pair of pliers. The qualification is personal, the authorization is corporate, and the two are not interchangeable. For the longer version of how to tell these apart on a quote, see how to hire a licensed electrician in Hamilton.

What This Means for a Hamilton Homeowner

Hamilton's housing stock makes this more than paperwork. Large parts of the lower city, Corktown, Strathcona, Gibson and the North End were wired long before the current code, and much of the Mountain went up in the post war decades. Those houses have had additions, basement apartments, hot tubs and kitchen renovations layered on the original wiring, and a meaningful share of that work was never reported to anyone.

Three situations where this becomes your problem:

• Selling. A buyer's inspector flags work with no documentation behind it and the deal slows down or the price moves.
• Insuring. Insurers increasingly ask about panel type, wiring type and the age of the service, and unreported alterations are exactly what they are asking about.
• Renting. Rental licensing and tenant safety obligations both lean on evidence that the electrical work was done by a licensed business.

None of that is solved by hiring an ESA authorized contractor specifically. It is solved by hiring a licensed contractor who files the notification and hands you the documentation afterwards. Membership simply tells you the contractor sits inside a system the regulator audits. Read how we handle compliance on our electrical safety page, or get in touch with the licence number in hand.

Frequently Asked Questions

What is an ESA authorized contractor?

An ESA authorized contractor is a Licensed Electrical Contractor that has joined the Electrical Safety Authority's Authorized Contractor Program, a voluntary program with membership criteria for licensed electrical and qualified HVAC contractors in Ontario. Members have their work inspected on a sampling basis rather than job by job. The Electrical Safety Authority states the program is not a quality designation.

Is an ESA authorized contractor better than a licensed electrical contractor?

Not by definition. The Electrical Safety Authority says in its own customer material that the Authorized Contractor Program is not a quality designation. The mandatory credential is the seven digit ECRA/ESA contractor licence, and a licensed contractor outside the program can do work of equal or better quality. Judge the licence first, then the evidence of the work.

How do I verify an electrical contractor's ECRA/ESA licence in Ontario?

Ask for the seven digit ECRA/ESA number, then search it in the Electrical Safety Authority contractor locator tool at licensing.esasafe.com. You can also call the Electrical Safety Authority at 1-877-372-7233. Check that the business name on the licence matches the name on your written estimate, because a licence belongs to a business rather than to an individual.

Who files the notification of work, me or the contractor?

The contractor files it, before the work starts. If a contractor asks you to file the notification of work in your own name, the Electrical Safety Authority treats that as a sign they may not be licensed. Filing it yourself transfers the responsibility, the inspection and the cost of any corrections onto you.

Does program membership mean my work will not be inspected?

No. It means inspection moves to a sampling model instead of every job. The Electrical Safety Authority's own examples are roughly one in ten air conditioner installations and one in four renovations being selected. Your job may still be inspected, the work still has to meet the Ontario Electrical Safety Code, and it still has to be reported.

Is Apollo Electric an ESA authorized contractor in Hamilton?

Yes. Apollo Electric Inc. is a Licensed Electrical Contractor under ECRA/ESA licence 7009372 and a member of the Authorized Contractor Program, serving Hamilton, Stoney Creek, Ancaster, Dundas, Waterdown, Burlington and the surrounding area. Verify the licence number yourself in the contractor locator tool before you call anyone, including us.

References

• Electrical Safety Authority, hiring an electrician or contractor, on why a Licensed Electrical Contractor is the only business that can be hired and what the ECRA/ESA licence number looks like.
• Electrical Safety Authority, finding the right contractor, on notification of work and the warning sign of being asked to file it yourself.
• Electrical Safety Authority contractor locator tool, for verifying a licence by business name or number.
• Skilled Trades Ontario, on the Certificate of Qualification held by certified electricians.
• WSIB Ontario, on workplace coverage and clearance certificates for contractors.