Plenty of homes around Winnipeg and the Interlake were wired in an era when a house drew a fraction of the power it does today. In the older Winnipeg neighbourhoods like the North End and West End, and in the farmhouses and original cottages out toward Selkirk and the lake, a lot of that original wiring is knob and tube. It held up for decades. What changes things is modern load, aging insulation, and an insurance company that no longer wants to cover it. Wiring from the 1960s and 70s is more often aluminum, which is a different fix.
Knob and tube has no ground wire, so it cannot safely serve the grounded outlets today’s electronics and appliances expect, and its original cloth and rubber insulation turns brittle as it ages. It also becomes a real fire risk when it gets buried under blown-in attic insulation, which traps heat against wiring that was designed to shed it into open air. We replace it with grounded copper run to the current Manitoba electrical code, and because we keep the whole job in-house, one crew handles the wiring, the access, and the cleanup.
A removal starts with finding out how much of the original wiring is still live, because most older homes are a mix by now. We map the original circuits, decommission the knob and tube, and pull new grounded cable to your outlets, switches, and fixtures. Then the work is permitted and inspected so the paperwork is there when you need it.
The honest part of any rewire is access. Running new cable through finished walls and ceilings means opening some drywall, and we plan the routes to keep that to a minimum and show you where before we start. On rural properties and cottages we bring our own equipment for the parts other crews sub out, from trenching a new feed to a detached garage to clearing a tree that sits on a service run, so one team carries the job the whole way.
Different houses need different scopes. Some have knob and tube left in only a few circuits, with the rest already updated, so we remove what is left and tie it into the modern wiring. Homes that still run mostly on the original system need a full rewire, and those almost always pair with an electrical panel upgrade, since the old service was never sized for how the house is used now. If your home also has aluminum wiring from the 1960s or 70s, we handle that too, though it is usually a different fix than a full rewire.
The short version is that knob and tube was safe for the loads of its day but was never built for a modern home. Here is how it compares to the grounded copper we replace it with.
Knob and tube
Modern grounded copper
Replacing old wiring in a lived-in home is disruptive work, and the difference is in how cleanly it is planned and carried out. We do this work across Winnipeg and the Interlake with our own crew, start to finish, and have since 2016.
The clearest sign is in the basement or attic, where the original wiring is often visible. Knob and tube shows up as single insulated wires running through white ceramic tubes where they pass through joists, held along the framing by ceramic knobs. If you see that, or a home inspection or your insurer has flagged it, it is worth handling before it affects your coverage. Wiring that is a dull silver and stamped aluminum on the jacket is aluminum, which we cover on its own page.
Often, yes. Many Manitoba insurers will not write or renew a policy on a home with active knob and tube. Replacing it is one of the most reliable ways to keep a home insurable, and we provide the permit and inspection records insurers and buyers ask for.
It depends on the size of the home and how much original wiring is still live. A partial removal can be a short job, while a full rewire on a larger or fully original house runs several days. We give you a timeline once we have seen the place, not before.
Some drywall or plaster has to come off to route new cable, but far less than most people expect. We plan cable runs to use existing openings and access points, and we walk you through where we will need to open up before we begin.
Yes, and it is a regular part of our work in the Interlake. Cottages and farmhouses often have a mix of original wiring, additions, and outbuildings on one service, and our crew handles the whole thing, including the runs to garages, shops, and pump houses.
If old wiring is holding up your insurance, your sale, or your peace of mind, get in touch for a free estimate and a straight answer on what your home actually needs.
