Electrical Wiring Installation Toronto – Safe, Code-Compliant Wiring
From century home rewiring to new construction, our ESA licensed electricians deliver safe, reliable electrical wiring installation throughout Toronto. Knob & tube replacement, whole-home rewiring, and circuit additions done right.
Why Toronto Homes Need Professional Wiring
Toronto's diverse housing stock presents unique electrical challenges requiring specialized expertise.
Century Homes
Victorian and Edwardian homes in the Annex, Cabbagetown, and Rosedale often contain original knob-and-tube wiring. Insurance companies increasingly require replacement before providing coverage.
Post-War Homes
Homes built 1965-1975 in Don Mills, Scarborough, and North York often have aluminum wiring with connections that can overheat. Safe remediation protects your family.
New Construction
From custom builds in Leaside to additions throughout Toronto, proper electrical infrastructure ensures decades of safe, reliable power for modern demands.
🏠 Need Wiring for Insurance Approval?
Many Toronto insurers now require knob-and-tube or aluminum wiring remediation before providing coverage. We provide complete documentation including ESA certificates.
Our Electrical Wiring Services
Complete wiring solutions for every Toronto home and project.
Knob & Tube Replacement
Safe removal of outdated knob-and-tube wiring found in Toronto's pre-1950s homes. Modern copper wiring with proper grounding throughout.
Whole-Home Rewiring
Complete electrical system upgrades including new copper wiring, updated circuits, grounded outlets, and modern safety features.
New Construction Wiring
Complete electrical rough-in and finish for new builds, additions, and major renovations. Future-ready infrastructure for modern living.
Circuit Additions
New dedicated circuits for home offices, kitchens, EV chargers, workshops, and high-demand appliances requiring isolated power.
Aluminum Wiring Remediation
Safe pigtailing with COPALUM or AlumiConn connectors for 1965-1975 era homes. Eliminate fire hazards and satisfy insurance requirements.
Lighting Circuit Installation
Dedicated lighting circuits with proper switching, dimmer compatibility, and smart home integration for any lighting design.
Basement & Addition Wiring
Complete electrical systems for basement finishing, home additions, and accessory dwelling units meeting all Toronto codes.
Outdoor & Landscape Wiring
Weather-rated outdoor circuits for landscape lighting, hot tubs, pool equipment, and exterior outlets with proper GFCI protection.
Signs Your Toronto Home Needs Rewiring
Don't ignore these warning signs that indicate your home may need professional wiring attention.
Flickering or Dimming Lights
Lights that flicker when appliances turn on suggest inadequate wiring capacity or loose connections needing attention.
Frequent Breaker Trips
Circuits that regularly trip indicate overloaded wiring, failing connections, or undersized circuits for modern electrical demands.
Warm Outlets or Burning Smell
Heat at electrical points or burning odors are serious warning signs of potential fire hazards requiring immediate attention.
Two-Prong Outlets Throughout
Older ungrounded outlets indicate outdated wiring that should be upgraded for safety and modern device compatibility.
Insurance Wiring Requirements
Many Toronto insurers require knob-and-tube or aluminum wiring remediation before providing or renewing home coverage.
Home is 50+ Years Old
Toronto homes built before 1975 often have wiring systems that have exceeded their safe service life and weren't designed for today's loads.
Our Wiring Installation Process
Professional approach from assessment to ESA inspection.
Consultation
We evaluate your current system, discuss your needs, and identify the scope of work required for your Toronto home.
Detailed Quote
You receive a comprehensive written quote outlining all work, materials, timeline, and costs. No surprises.
Permits & Planning
We handle City of Toronto permits and ESA notifications. Our team manages the paperwork for you.
Installation
Our licensed electricians complete the wiring efficiently and cleanly. We minimize disruption and keep you informed.
ESA Inspection
All work is inspected by the Electrical Safety Authority. We provide complete documentation for your records.
Copper Wiring
Industry-standard copper conductors for all installations
Arc-Fault Protection
AFCI breakers for bedroom and living area circuits
GFCI Protection
Ground fault protection for wet locations
Code Compliant
Meets all Ontario Electrical Safety Code requirements
Why Toronto Homeowners Choose Kolji Bros
Licensed, insured, and committed to quality workmanship.
ESA Licensed & Certified
Full Electrical Safety Authority licensing (ECRA #7014138) means your installation meets all Ontario codes and passes inspection the first time.
$5 Million Insurance
Comprehensive liability coverage protects you throughout the project. We're properly insured for work in occupied Toronto homes.
Transparent Pricing
Detailed written quotes with no hidden fees. You know exactly what you're paying for before any work begins.
Century Home Expertise
We understand Victorian, Edwardian, and post-war construction. Local knowledge means better solutions for your specific Toronto home.
Complete Documentation
ESA certificates, permits, detailed invoices, and photos provided. Everything your insurance company needs.
4.9-Star Service
Our Google rating reflects our commitment to quality work and customer satisfaction on every wiring project.
Toronto Neighbourhoods We Serve
Professional wiring installation throughout Toronto and the GTA.
Need a Wiring Quote?
Free estimates for rewiring projects throughout Toronto. No travel fees.
Call (905) 299-0004What Toronto Homeowners Say
Real reviews from rewiring projects we've completed.
"We bought a 1920s home in the Annex and needed the knob-and-tube replaced for insurance. Kolji Bros completed the whole house in under a week with minimal mess. The ESA inspector complimented their work. Highly recommend for century home rewiring."
"Had them wire our basement renovation and add circuits for my home office. Everything was done on time and on budget. They handled permits and inspections. Clean work, fair pricing, and great communication throughout."
"Our 1972 bungalow had aluminum wiring and our insurance was threatening to drop us. Kolji Bros did the COPALUM remediation and provided all the documentation. Insurance renewed within two weeks. Professional and thorough."
Electrical Wiring FAQ
Common questions about rewiring and wiring installation in Toronto.
Whole-home rewiring typically ranges from $8,000 to $25,000 depending on home size, accessibility, and existing conditions. A 1,500 sq ft century home with knob-and-tube usually falls in the $12,000-$18,000 range. We provide detailed quotes after assessing your specific situation.
Yes, most electrical wiring work requires permits in Toronto. The ESA requires permits for new circuits, rewiring, and most modifications. We handle all permit applications and coordinate ESA inspections as part of our service.
Most rewiring projects take 3-7 days depending on size and complexity. A typical 3-bedroom century home averages 4-5 working days. We can often maintain power to critical areas throughout the project.
Modern techniques minimize damage. We use fish tape, flex bits, and strategic access points to route wiring with minimal openings. Some patching is typically needed, but we plan routes carefully to reduce impact.
Knob-and-tube isn't inherently dangerous when in good condition, but it lacks grounding and wasn't designed for modern loads. Main concerns are deteriorated insulation, improper modifications, and coverage by building insulation. Most Toronto insurers require replacement.
Yes, most projects can be completed while you remain home. We work room by room, maintaining power to essentials like refrigerators. We'll discuss any brief interruptions in advance so you can plan.
Absolutely. We provide ESA inspection certificates, detailed invoices, permit records, and photos when requested. This documentation satisfies insurance requirements for knob-and-tube or aluminum wiring remediation.
All installations include a comprehensive warranty covering workmanship and materials. If any issue arises from our installation, we return to fix it at no charge. The copper wiring itself is rated for decades of service.
Ready for Safe, Professional Wiring?
Get a free quote for your Toronto rewiring project. ESA licensed, fully insured, and committed to your complete satisfaction.
Request Your Free Quote
Fill out the form below and we'll get back to you within 24 hours. For urgent matters, please call us directly.
Monday – Friday: 7:00 AM – 5:00 PM
Saturday: Closed
Sunday: Closed
⚡ 24/7 Emergency Service Available
Proudly serving Toronto, Willowdale, North York, Vaughan, Markham, Richmond Hill, Mississauga, and the entire GTA.

