How often should I have my home's electrical system professionally inspected?

Most electrical safety experts and the Electrical Safety Authority recommend having your home's electrical system professionally inspected every 5 to 10 years, or immediately if you are buying or selling a home, noticing any warning signs, or planning a major renovation. Homes older than 40 years, homes with aluminum wiring, and homes with original knob-and-tube wiring should be inspected more frequently — every 3 to 5 years at minimum.

The reality in the GTA is that most homeowners never think about their electrical system until something goes wrong. Toronto's housing stock spans well over a century, and a home built in 1920 in Cabbagetown or the Annex has electrical demands today that are unimaginably different from what the original wiring was designed to carry. Even a 1980s home in Mississauga or Markham that seemed perfectly modern when built is now being asked to support home offices with multiple monitors, EV chargers in the garage, central air conditioning, and a full suite of kitchen appliances that did not exist when the home was wired. A professional inspection establishes whether your system can safely handle your current and near-future electrical loads.

During an electrical inspection, a licensed electrician will examine your main panel for signs of overheating, corrosion, or improper breaker sizing. They will check a representative sample of outlets and switches for proper grounding, GFCI protection where required by the Ontario Electrical Safety Code, and secure connections. They will look at your service entrance — the connection from Toronto Hydro's lines to your meter and panel — for weather damage, which is particularly important in Toronto where ice storms and freeze-thaw cycling can damage weatherheads, service masts, and exterior conduit. They will also identify any code violations or safety hazards such as missing junction box covers, exposed wiring, improper splices, or circuits protected by oversized breakers.

When to Schedule an Inspection Sooner

Certain situations call for an immediate inspection rather than waiting for a scheduled interval. If you are purchasing a home, an electrical inspection by a licensed electrician is far more thorough than what a general home inspector covers — a general inspector may test a few outlets and look at the panel label, but an electrician will open the panel, check connections, and assess the system's actual condition. If your home insurance company is asking questions about your wiring type, panel brand, or electrical age, an inspection report from a licensed electrician can satisfy their requirements and potentially prevent policy cancellation. If you have experienced frequent breaker trips, flickering lights, outlets that do not work, or any of the warning signs of faulty wiring — burning smells, warm cover plates, buzzing sounds — an inspection is urgent, not optional.

The cost for a residential electrical inspection in the GTA typically ranges from $200 to $500 depending on the size of the home and the thoroughness of the assessment. Some electricians offer inspection packages that include a written report with prioritized recommendations. This is money well spent when you consider that electrical fires cause hundreds of millions of dollars in property damage across Ontario each year. Toronto Electrical Repair can help you find a licensed electrician through the Toronto Construction Network to schedule an inspection.