EZSMART Corporation, ESA/ECRA #7012690 , North York , Ontario
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The most consistent code violation we find on GTA renovation walkthroughs is a wire splice hiding inside a wall, ceiling, or floor — no junction box, no cover plate, no accessible way to inspect or service it. The homeowner or handyman thought they were being efficient. The Ontario Electrical Safety Code and every home inspector […]
Every NMD-90 cable in an Ontario home contains a bare copper conductor tucked in with the insulated black and white wires. Most homeowners never think about it — it does not carry current in normal use, does not connect to any switch or fixture control, and looks like an afterthought. But that bare copper is […]
Every Canadian home follows the same convention — black wires are hot, white wires are neutral, and no one seems to question why. The answer is a mix of practical engineering history, safety, and international standardization dating back over 100 years. Understanding the reasoning behind the colour convention helps GTA homeowners work safely with wiring […]
A nicked electrical wire looks like a small problem — a tiny gouge in the copper conductor from a slipping stripper, a utility knife score, or a pinched cable. In practice, that nick is the origin of every silent wire failure five years from now. Heat concentrates at the defect, insulation weakens, and eventually the […]
Open any electrical box in a Canadian home and you see the same colour palette — black, white, red, green, and bare copper. Each colour carries a specific meaning under the Ontario Electrical Safety Code, and mixing them up is the fastest way to create a shock hazard or a code violation. This guide walks […]
Identifying the gauge of wire hidden in the wall is one of the most common questions on GTA renovation projects. The right gauge determines whether a circuit can handle a new dishwasher, an EV charger, or an extra kitchen counter receptacle. Guessing wrong risks overloading the wire and starting a fire. This guide walks Ontario […]
Homeowners planning a garden light run or a garage sub-feed often ask the same question at the hardware store — can I just bury the indoor cable I already have? It looks similar to underground-rated cable, it is cheaper, and it saves a trip. The answer under the Ontario Electrical Safety Code is a firm […]
Walk into any GTA hardware store’s electrical aisle and you see rolls of cable labeled Romex, THHN, and UF — plus NMD-90, TECK, MC, and a dozen others. Each has a specific use, a specific set of code requirements, and a specific job it does badly if you pick the wrong one. This guide walks […]
Running electrical wire through finished walls is the electrician’s version of a magic trick — no visible openings, no drywall damage, just a working switch or receptacle where none existed before. In practice it is a mix of preparation, the right tools, and knowing which shortcuts work and which lead to hours of drywall repair. […]
Knob and tube (K&T) wiring is the oldest style of residential electrical wiring still found in Ontario homes — installed from the 1880s through the 1940s, and remarkably still functional in some early Toronto and East York homes almost 100 years later. The problem is that K&T was engineered for a world without dishwashers, air […]
