Knob-and-Tube Wiring Removal in North York
Safe removal and replacement of outdated knob-and-tube wiring in older Toronto and GTA homes.
Call (416) 828-6976Serving North York
North York’s mix of established family homes and newer highrise developments means every electrical job is a little different. We provide panel upgrades, lighting installations, and commercial electrical service throughout North York, sized to whether you’re in a detached home or a multi-unit building.
Detached homes in Newtonbrook and Bathurst Manor, many built from the 1950s through the 1970s, often need a panel upgrade to support central air, EV charging, or a basement renovation. In Willowdale and Bayview Village, where highrise and mid-rise condo development has grown quickly, we do more in-suite electrical work and coordinate with property management on building-wide upgrades. Don Mills’ mix of older homes and commercial plazas keeps us busy with both residential panel work and retail lighting retrofits.
We regularly work in:Willowdale,Don Mills,Bayview Village,Newtonbrook,Bathurst Manor, and the rest of North York.
More about our work in North York
Overview
We provide knob-and-tube wiring removal for homes and businesses throughout North York, including Willowdale, Don Mills, Bayview Village, Newtonbrook, and the rest of North York.
Knob-and-tube wiring was standard in homes built before the 1950s, and a lot of it is still live in walls and ceilings across Toronto today. It has no ground conductor, its rubber insulation degrades with age, and it was never designed for modern loads. We assess your existing wiring, explain what’s actually still knob-and-tube versus what’s already been updated, and remove and replace it with modern copper wiring that meets current code and satisfies insurance requirements.
- Full and partial knob-and-tube rewiring
- Insurance-ready ESA documentation
- Minimal drywall disruption
Why It Matters
Most Ontario insurers will not write or renew a homeowner policy on a house with active knob-and-tube wiring, which is often the real trigger for this call, not a specific electrical symptom. Beyond insurance, the risk is real: the original insulation becomes brittle with age and is not rated to be covered by modern attic insulation, which traps heat around the conductors, and the lack of a ground conductor means some circuits can’t safely support grounded appliances or GFCI protection. It shows up most often in Toronto’s older east and west end neighbourhoods, in homes that have been partially rewired over the decades, sometimes leaving a mix of knob-and-tube and modern wiring in the same house that needs to be properly traced before any work starts.
How Knob-and-Tube Wiring Removal Works
- 1
Wiring assessment
We trace your home’s circuits to identify exactly which areas are still on knob-and-tube versus already updated, and check panel capacity for the new wiring.
- 2
Rewire plan & permit
We scope a partial or full rewire based on what we find, and pull the ESA permit before any work begins.
- 3
Removal & rewiring
We remove the old wiring and run new copper circuits, working through existing wall and ceiling cavities to keep drywall disruption to a minimum.
- 4
ESA inspection & documentation
Once inspected and approved, you get a certificate of inspection for your insurer or for your records.
What Affects the Cost
Cost depends on how much of the home is still on knob-and-tube versus already updated, whether walls and ceilings are finished or open, whether the job is a full-home rewire or a targeted partial replacement, and whether panel capacity needs to be increased to support the new circuits.
Frequently Asked Questions
- How do I know if my home still has knob-and-tube wiring?
- Knob-and-tube is visible in unfinished attics and basements as ceramic knobs and tubes with cloth-insulated wiring. Many homes have a mix of knob-and-tube and updated wiring, so a proper inspection is the only way to know for certain.
- Does my home insurance require knob-and-tube removal?
- Many insurers in Ontario will not write or renew a policy on a home with active knob-and-tube wiring, or will require it to be inspected and certified. We provide documentation your insurer can use either way.
- Do you need to open every wall to remove knob-and-tube wiring?
- Not always. We route new wiring through existing wall and ceiling cavities wherever possible, and will tell you upfront if a section genuinely requires opening drywall.
- Can knob-and-tube wiring be replaced in stages?
- Yes, a partial rewire is common, especially if only certain circuits or areas of the home are still on knob-and-tube. We can also plan a phased full rewire if that fits your budget better.
- How long does a knob-and-tube rewire take?
- A single-circuit or partial rewire can often be done in a day or two, while a full-home rewire typically takes several days depending on the size and layout of the house.
- How much does knob-and-tube wiring removal cost?
- Cost depends on how much of the home needs rewiring and how accessible the walls and ceilings are. We provide a clear quote after assessing your home’s actual wiring.
Other Services in North York
Panel Upgrades in North York
Upgrade your electrical panel for improved safety, capacity and reliability.
EV Charger Installation in North York
Professional EV charger installation for homes and businesses.
Fire Alarm Installation in North York
Protect your property with code-compliant fire alarm systems and monitoring.
Potlights & Lighting in North York
Custom lighting design and installation to enhance your space.
Electrical Troubleshooting in North York
Fast diagnosis and repair for electrical issues big or small.
Commercial Electrical Services in North York
Reliable electrical solutions for offices, retail and industrial properties.
Backyard & Garden Lighting in North York
Custom backyard and garden lighting design and installation for outdoor living and landscaping.
Industrial Electrician in North York
Fault finding, diagnostics and electrical maintenance for industrial and production facilities.
Aluminum Wiring Replacement in North York
Aluminum wiring repair and replacement to reduce fire risk and meet insurance requirements.
Generator Installation in North York
Standby generator installation and backup power systems for homes and businesses.
Electrical Safety Inspection in North York
ESA-compliant electrical safety inspections for home sales, insurance, and peace of mind.
Whole-Home Surge Protection in North York
Panel-level surge protection to guard your home’s electronics and appliances.
Basement Electrical Wiring in North York
Electrical rough-in and finishing for basement renovations and legal second suites.
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Dedicated circuits, disconnect switches, and panel capacity for central air and ductless AC systems.
Hot Tub Electrical Installation in North York
GFCI-protected dedicated circuits, disconnects, and bonding for hot tubs and spas, installed to Ontario Electrical Code.
Smart Video Doorbell Installation in North York
Correct wiring, transformer, and power setup for Ring, Nest, and other video doorbells, done right the first time.
Sump Pump Panel Installation in North York
Duplex sump pump control panel installation and wiring for industrial, commercial and multi-residential properties, with alarms and redundant pump control.
High Bay Lighting Installation in North York
LED high bay lighting installation and retrofits for warehouses, shops and industrial facilities, wired for even coverage and lower energy costs.
600V Welding Plug Installation in North York
600V welding disconnect and pin-and-sleeve plug installation for industrial and commercial shops running heavy-duty welding equipment.
Restaurant Electrician in North York
Electrical installation and repair for restaurants and commercial kitchens, from hood suppression interlocks to dedicated equipment circuits.
Warehouse Electrician in North York
Electrical installation and repair for warehouses and distribution centres, from dock and racking power to forklift charging stations.
Security Camera Installation in North York
Wiring and power for CCTV and PoE security camera systems in homes and businesses, done right the first time.
Outlet Installation & Repair in North York
New outlet installation, relocations, and repairs for homes and businesses, including GFCI, USB, and dedicated appliance circuits.
Three-Phase Motor Wiring & Repair in North York
Three-phase motor circuit installation, motor control wiring, and repair for industrial and commercial equipment.
Solar PV Installation in North York
Grid-tied solar PV system design and installation, including panel mounting, inverter wiring, and utility interconnection.
Security Alarm Installation in North York
Wiring and installation for burglar alarm systems, including door/window sensors, motion detectors, keypads, and monitoring.
Knob-and-Tube Wiring Removal in Other Areas
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(416) 828-6976