How to Add Electricity to a Bunkie (Safely & Legally in Canada)
Lights, a heater, Wi-Fi, a kettle — power is what turns a bunkie from a sleeping cabin into a home office, studio, or true guest suite. Here’s how it’s done properly in Canada, what it costs, and where the legal lines are.
The short version: permanent wiring in Canada must comply with the Canadian Electrical Code, and in Ontario it must be filed with the Electrical Safety Authority (ESA). Hire a Licensed Electrical Contractor for the connection — it’s safer, it’s the law for contracted work, and it keeps your insurance valid.
Option 1: Underground Feed from the House — The Proper Way
The standard permanent solution is a buried cable from your home’s electrical panel to a small sub-panel or receptacle circuit in the bunkie. Your electrician will typically:
- Assess spare capacity in your main panel
- Trench and run approved underground cable (or cable in conduit) at the required burial depth
- Install a sub-panel or dedicated circuits in the bunkie
- Wire receptacles, lighting, and any fixed heater
- File the ESA notification and arrange inspection
Typical cost: $1,500–$5,000+ depending on distance from the house, trenching conditions, and how many circuits you want. Trenching is often the biggest variable — if you can dig the trench yourself to your electrician’s spec, you can save meaningfully.
Planning tip: think about the trench route before your foundation and landscaping go in, and tell your electrician if you plan electric heat — a 1,500–2,000 W heater generally wants its own circuit.
Option 2: Temporary Cord Power — For Light, Occasional Use
Running an outdoor-rated extension cord from a GFCI-protected exterior outlet is acceptable for genuinely temporary, light-duty use — charging devices, an LED lamp, a fan. It is not a substitute for permanent wiring: cords aren’t rated for continuous heater loads, can’t be buried, and shouldn’t run through window or door openings long-term. If you find yourself using the cord every day, it’s time for Option 1.
Option 3: Off-Grid Solar — For Remote Sites
For cottage lots without grid access, a compact solar setup covers the basics: a few hundred watts of panels, a charge controller, a lithium battery, and an inverter will run LED lighting, device charging, and small electronics. Budget roughly $1,000–$3,000 for a quality small system, or consider an all-in-one power station plus panel for plug-and-play simplicity.
Be realistic about heating: electric heat is beyond a small solar system’s capability, so pair solar with a propane or wood heat source.
What About DIY Wiring?
Rules vary by province. In Ontario, homeowners may do electrical work on their own residence if they file the notification with ESA and the work passes inspection — but the underground feed, panel work, and load calculations are exactly where mistakes get expensive and dangerous. Our honest advice: even confident DIYers should have a Licensed Electrical Contractor design and connect the feed, then price the difference of having them finish the interior devices too. It’s usually smaller than you’d expect.
Plan the Interior Layout Before the Build
The best time to think about electrical is before assembly. Decide where the desk, bed, and heater will go; place receptacles accordingly; and consider exterior lighting by the door. Surface-mounted wiring in trunking suits log interiors well and keeps everything accessible.
Bring It Together
Power plus insulation plus a fixed heater is the complete four-season package. Browse models in the Nordic Bunkies store — every product page lists interior dimensions to help you plan circuits and furniture together.
FAQ
Do I need a permit to add electricity to a bunkie in Ontario? Electrical work requires an ESA notification and inspection rather than a municipal building permit. Your Licensed Electrical Contractor handles the filing.
How much does it cost to run power to a bunkie? Most homeowners spend $1,500–$5,000 for a professional underground feed, depending on distance and the number of circuits.
Can I just use an extension cord? For occasional light loads, yes. For heaters, daily use, or anything permanent, no — install proper wiring.
How deep does the electrical cable need to be buried? Burial depth depends on the wiring method and protection used under the Canadian Electrical Code — your electrician will specify it for your installation.
