Switch Installation near you

Most dimming complaints come from pairing products that weren't made for each other. Older dimmers were designed for incandescent bulbs, which draw much more power than LEDs, and at the bottom of their range many can't control a small LED load smoothly. The symptoms are flicker, a hum from the dimmer or the fixture, lights that glow faintly when switched off, or a range that jumps from bright to off with little in between. The cure starts with the labels: the bulbs or fixtures must be marked dimmable, and the dimmer must be rated for LED loads, preferably one its maker lists as compatible with the lights you have.

Integrated LED fixtures, such as slim pot lights and under-cabinet strips, add a variable, because their built-in drivers respond to dimmers differently. Many LED dimmers have a low-end adjustment the electrician can set once every fixture is connected. The number of fixtures matters too: a very small load can flicker, and a load close to the dimmer's rating makes it run hot. Use the same bulb model throughout a room, since mixing models on one dimmer is a common cause of uneven light.

A conventional switch simply opens and closes the circuit to the light, so it needs no power of its own. A smart switch contains electronics that stay powered while the light is off, and many models take that power through a neutral conductor in the switch box. Plenty of older homes were wired with the neutral running only to the ceiling fixture, leaving the wall box with just the switched conductors, so a box that looks ready may not have what the device needs.

When there is no neutral, the choice depends on the house. Some smart switches are designed to work without one, a new cable can sometimes be fished down from the fixture box, and a battery-powered wireless switch paired with smart bulbs avoids the wiring question entirely. Smart switches and dimmers are also deeper than a basic toggle, so the electrician checks that the box has room for the device and its conductors, replaces a shallow or crowded one, and confirms the product carries a recognized certification mark for Canada.

ESA notes that homes built between the mid-1960s and late 1970s may have aluminum wiring, and that only devices approved for aluminum wire should be used, installed in accordance with the Ontario Electrical Safety Code and the manufacturer's instructions. Switches, dimmers and smart switches are not all approved for aluminum, so a device swapped in without checking its markings may not be suitable for the conductor it's attached to.

Where the switch you want isn't approved for aluminum, an electrician can join a short copper lead to the aluminum conductor with a connector approved for that purpose, so the new device only touches copper. ESA recommends a Licensed Electrical Contractor familiar with the techniques required for working with and repairing aluminum wiring, and adds that some insurers won't cover a home with it without an ESA inspection. Mention the wiring when you book so the electrician arrives with the right parts.

ESA says almost all electrical work must be reported through a notification of work filed before it starts, and anyone you hire for electrical work in an Ontario home must be a Licensed Electrical Contractor, who files that notification. In Quebec, electrical work done for others goes to a contractor licensed through the CMEQ, and in British Columbia, the electrical installation permit comes from Technical Safety BC or, in some municipalities, the local government. A new switch location, a new cable or a box replaced for a smart switch is a change to the circuit like any other, so ask for the paperwork and keep the confirmation with your house records.