Docks & boathouses
Dock and Boathouse Wiring
Water, metal and electricity, governed by its own section of the code. Most of what is on the docks around this bay predates the rule that now applies to it.

This is the work that makes an electrical contractor on this shoreline different from one in a landlocked town, and it is the reason a page written for a city does not describe the job here at all.
It has its own section of the code
Marine wharves, docking facilities, fixed and floating piers and boathouses are covered by Section 78 of the Ontario Electrical Safety Code, separately from the rest of a property. The reasoning is straightforward: a fault that would give somebody a shock on dry land can be fatal in water, because a swimmer in an energised field loses muscle control before they can leave it.
Rule 78-050 is the one most existing installations fail. Receptacles rated 15 A and 20 A on the exterior of a boathouse, a pier, a docking facility or a wharf now require ground-fault protection. A great deal of what is already installed around this bay was put in before that applied, and it is still there.
What usually needs doing
The common findings are a feeder run to the dock without a disconnect within sight, receptacles with no ground-fault protection, bonding that stops at the shoreline, and lift motors fed from whatever was nearest. On floating docks there is the additional question of what happens to the cable at every water level the bay actually reaches, which is a wider range here than most owners plan for.
Ice is the thing that breaks it
A dock feed that was correct in September is frequently damaged by April. Ice movement on this shore lifts and drags cribs and floating sections, and the cable is usually the least flexible thing attached to them. Spring inspection of a dock feed is not a sales upsell here, it is the same conversation every year.
Talk to a Midland electrical contractor
Tell us the town, roughly when the building was put up, and what the panel looks like — fuses or breakers, and the number on the main. Those three things decide whether you are looking at an afternoon, a scheduled job, or a conversation with your distributor first, and they are usually enough to price it without anybody driving anywhere.