How do I add a welder outlet to my garage in Bathurst New Brunswick?

Adding a welder outlet to your garage in Bathurst requires a dedicated 240V circuit installed by a licensed electrician, with an electrical permit and inspection. This is not a DIY project — the circuit size, wire gauge, breaker rating, and outlet type must all match your welder's requirements, and all electrical work in NB must be done by a licensed professional.

The first step is to determine what type of welder you are running. A small MIG or stick welder rated at 30 amps or less can typically run on a 30-amp, 240V circuit with 10-gauge wire and a NEMA 6-30R receptacle. A larger MIG welder, TIG welder, or plasma cutter drawing 40 to 50 amps requires a 50-amp, 240V circuit with 6-gauge wire and a NEMA 6-50R receptacle. Some industrial-grade welders require even more — check the nameplate on your machine for the exact amperage draw and input voltage before your electrician orders materials. The NEMA 6-50R is the most common welder outlet and is a smart choice even if your current welder only draws 30 amps, because it accommodates future upgrades without rewiring.

The critical question is whether your existing electrical panel has capacity for the new circuit. In Bathurst, many older homes and garages have 100-amp or even 60-amp main panels. A 50-amp welder circuit is a substantial load — if your panel is already near capacity, you may need a panel upgrade before the welder circuit can be added. Your electrician will perform a load calculation to determine this. If your garage is detached and fed by a sub-panel, the sub-panel and the feeder cable from the house must also be large enough to handle the additional load. A garage sub-panel of 100 amps is recommended if you plan to run a welder alongside other heavy loads like a compressor, heater, or EV charger.

Bathurst's location in northern New Brunswick means your garage likely sees some of the province's coldest temperatures, with winter lows regularly reaching -25 to -30 degrees Celsius. If you are welding in your garage during winter, you will almost certainly need a garage heater — and that heater also requires its own dedicated 240V circuit. Planning both circuits at the same time saves money because the electrician only needs to make one trip and can size the panel and feeder to accommodate both loads. A typical electric garage heater in a northern NB garage draws 20 to 30 amps at 240V, so between the welder and the heater, you are looking at 70 to 80 amps of 240V load before you even add lighting, outlets, and a door opener.

Ventilation is essential when welding in an enclosed garage. Welding produces fumes, gases, and smoke that are hazardous in a closed space. At minimum, install a through-wall exhaust fan near the welding area and crack a window or door for makeup air. A dedicated fume extraction system positioned at the welding table is even better for regular use.

Expect to pay $800 to $1,500 for a single dedicated welder circuit in a garage that already has an adequate sub-panel, including the outlet, wire, breaker, and labour. If a panel upgrade or new sub-panel is needed, add $1,500 to $3,000. Get three quotes from licensed electricians in the Bathurst area — find local professionals through the New Brunswick Construction Network directory at newbrunswickconstructionnetwork.com.