Can i install a dimmer switch myself in my Fredericton home or does any electrical work require a TIS permit in NB?

In New Brunswick, all electrical work must be performed by a licensed electrical contractor — homeowners cannot legally do their own electrical work unless they personally hold a valid NB electrician's licence issued by TIS. This applies even to something as seemingly simple as swapping in a dimmer switch.

This catches a lot of Fredericton homeowners off guard, because in some other provinces DIY electrical is permitted under certain conditions. New Brunswick's rules are stricter. The NB Department of Justice and Public Safety — Technical Inspection Services (TIS) licenses all electricians in the province, and only those licensed individuals can legally perform electrical installations, modifications, or replacements in your home.

What about the wiring permit? That's a separate layer. NB Power issues electrical wiring permits province-wide, and a licensed contractor is required to pull one for installations exceeding 10 outlets or 5 kW of load. A single dimmer swap is unlikely to trigger a formal wiring permit on its own, but the licensing requirement for the person doing the work still stands regardless of permit thresholds. Your contractor will know whether a permit is needed for the specific scope of work.

For a straightforward dimmer switch replacement in a Fredericton home, a licensed electrician will typically charge a one-hour minimum call-out fee — usually $100–$180 in the Fredericton market — which covers the swap and any minor troubleshooting. If you're replacing several switches at once, bundling the work into a single visit makes the cost much more reasonable per switch.

One thing worth knowing if your Fredericton home is older: dimmer switches require a compatible load. Older homes (especially pre-1990s construction in the University Avenue area or downtown) may have knob-and-tube wiring or older fixtures that aren't dimmer-compatible, and some LED bulbs don't play nicely with standard dimmers either. A licensed electrician can confirm compatibility on the spot.

To find a licensed electrical contractor in Fredericton, you can verify licences through TIS at 1-888-659-3222 or email TISFTN@gnb.ca, and browse local electricians through the New Brunswick Construction Network directory. For permit questions specifically, NB Power handles wiring permits at 1-800-615-0522.

The short answer: hire a licensed electrician for this one. It's a quick job for a pro, and it keeps your home insurance valid and your work code-compliant.