1. Breakers keep tripping

Occasional breaker operation can be the system doing its job. Repeated trips on the same circuit, however, call for diagnosis.

The cause could be a faulty appliance, overloaded circuit, damaged wiring or a breaker issue. Don't replace a breaker with a larger one to stop trips. That can create a serious hazard.

2. There's heat, buzzing or a burning smell

Unusual heat, crackling, arcing or odours around electrical equipment are urgent warning signs. Avoid touching the equipment and arrange qualified help. Smoke or fire requires emergency services.

These symptoms are not something to “monitor for a few weeks.” They need prompt attention.

3. Your panel uses ageing or difficult-to-service equipment

Older electrical equipment isn't automatically unsafe because of its age, but its condition, suitability and availability of compatible parts matter.

If an electrician says a replacement is necessary, ask what the actual deficiency is: damage, failure, unsupported equipment, inadequate capacity or another documented concern.

4. You're planning major new electrical loads

EV charging, electric cooking, heat pumps, a hot tub or a substantial renovation can change the assessment of your electrical service.

A new circuit or subpanel may help with distribution, but neither necessarily increases the amount of power your home can draw.

Before approving an upgrade, request a load calculation.

5. The panel has no useful room for new circuits

A crowded panel can make new work more complicated. But lack of breaker spaces and lack of electrical capacity aren't the same thing.

Depending on the system, a properly designed subpanel or other approach may solve the distribution problem without a complete service change.

6. Visible moisture, corrosion or damage

Water ingress, corrosion and damaged equipment can compromise electrical reliability and safety.

If a panel or associated equipment has been exposed to flooding or significant water, do not re-energise it or open covers yourself. An electrician should assess it first.

7. Insurance, renovations or an inspection reveal a problem

A home purchase, insurer request or renovation often exposes long-standing electrical issues.

Get the findings in writing and separate mandatory safety corrections from optional future capacity improvements. That distinction helps with budgeting.

What is not proof you need 200 amps?

A home that is 40 years old, a panel with no spare slots, or a single tripping breaker doesn't by itself prove a 200A service upgrade is required.

The right recommendation comes from an assessment of equipment condition and calculated loads. Read our panel upgrade cost guide for the difference between a panel swap and a full service upgrade.

What you can check safely

You can note when the symptoms occur, which appliance is running and whether the problem affects one circuit or the entire house. Photograph the exterior of the panel without opening any cover.

Don't remove the dead front, touch wiring, attempt breaker repairs or repeatedly reset a circuit that trips for no explained reason.

When to request help

If you notice recurring trips, damaged equipment or a pending renovation, book an electrical panel assessment in Sarnia.

For active smoke, fire or downed power lines, prioritise emergency services or the appropriate utility. A routine website enquiry form is not emergency response.