Mississauga homeowners are increasingly being asked by insurers to address active knob & tube wiring before coverage issues become more difficult. Get a free assessment today
Knob & Tube Wiring Replacement Mississauga
Mississauga has a wide housing mix, from older detached and postwar homes in neighbourhoods like Applewood, Lakeview, Port Credit, and Cooksville to townhomes and high-rise condos around City Centre and Hurontario. In many of the city’s older houses, active knob and tube wiring can still be hidden behind plaster walls, under attic insulation, and above finished basement ceilings. Our ESA-licensed electricians replace that outdated system with modern code-compliant wiring so your Mississauga home is safer, easier to insure, and better prepared for present-day electrical use.
Actual job photos
Why Knob & Tube Wiring Must Be Replaced
Across Mississauga, especially in older pockets like Port Credit and Cooksville, some homes still rely on wiring systems that were installed long before modern kitchens, home offices, air conditioning, and daily electronics became standard.
No Ground Wire
This older wiring method only carries hot and neutral conductors, which means modern outlets and appliances do not get the grounding protection expected in an updated electrical system.
Deteriorating Insulation
The original cloth and rubber insulation often becomes brittle, cracks apart, and falls away with age, leaving live conductors more exposed inside hidden framing spaces.
Overloaded Circuits
These circuits were never intended for the combined demand of present-day appliances, chargers, computers, entertainment systems, and portable cooling equipment.
Insurance Cancellation
Active knob and tube often creates problems during policy renewals, refinancing, or resale, and homeowners are frequently asked to replace it before full coverage can continue.
Buried by Insulation
Knob and tube depends on open air around the conductors, so when attic insulation surrounds live runs, heat can build up in conditions the system was never meant to handle.
Reduced Home Value
Buyers, lenders, and home inspectors often treat active knob and tube as a serious defect, which can slow negotiations and complicate financing or closing.
Is Your Insurer Threatening Cancellation?
We can inspect the wiring, outline the required scope in writing, and move quickly on Mississauga rewiring work so you have a clear plan before your coverage is affected.
Before & After Real Rewiring Jobs
These photos show the kind of knob and tube replacement work we complete in older Mississauga homes, including detached properties in mature neighbourhoods such as Applewood, Mineola, and Lakeview.
Before
After
A newly organized panel with clearly marked breakers after the older wiring has been removed and the electrical system has been rebuilt to current standards.
What We Find in Mississauga Homes
In older areas of Mississauga, especially around Port Credit and Applewood, we regularly find porcelain knobs, ceramic sleeves, cloth-wrapped conductors, and old splice points hidden above finished ceilings and inside wall cavities.
Finance Your Rewiring Project
Use this estimator to preview payment options for a Mississauga knob and tube replacement project before booking your in-home assessment.
Installment loan estimate
Subject to credit approval. Actual interest rate, purchase amount, credit limit, payments and terms are subject to change and may vary upon approval. Payment and interest rate apply to term only. For illustrative purposes only. Not a final offer.
Our Knob & Tube Rewiring Services
From full rewires in Port Credit and Lakeview to targeted circuit corrections in older Applewood and Cooksville homes, we handle the complete scope of removing unsafe legacy wiring.
Full Home Rewire
We remove active knob and tube throughout the house and install a complete new wiring system built for today’s lighting, receptacles, appliances, and overall household demand.
Partial Rewire & Targeted Circuits
If only certain sections still contain energized legacy wiring, we can isolate those areas and replace the specific circuits that still require correction.
Panel Upgrade
Many older houses need panel improvements at the same time so the new wiring has the right capacity, clearer circuit organization, and modern protective devices.
ESA Permit & Inspection
We handle the ESA permit and inspection process so the finished work has the approval record that insurers, buyers, and lenders often want to see.
Insurance Assessment Letter
If your insurer needs quick confirmation, we can inspect the property and provide a written assessment outlining what remains active and what work is required.
GFCI & AFCI Upgrades
We install the required protection for kitchens, bathrooms, bedrooms, exterior outlets, and other locations covered by current electrical code requirements.
Attic Insulation Clearance
Where insulation is covering live knob and tube, we complete the electrical replacement first so attic upgrades can happen safely afterward.
Pre-Sale Rewire
We help sellers remove a major electrical objection before listing or closing so the transaction is less likely to stall over outdated wiring concerns.
Want to Know What It Costs?
See our pricing guide for knob and tube replacement, including how access, panel work, and overall project scope can affect the final cost.
View Full Cost GuideHow We Replace Knob & Tube Wiring
Our process keeps a Mississauga rewiring project organized, clearly staged, and easier to manage from the first inspection through final approval.
Free Assessment
We visit your Mississauga home, inspect the attic, basement, panel, and accessible wall areas, and determine exactly where active knob and tube is still feeding the property.
Written Quote
You receive a detailed proposal outlining labour, materials, permit-related work, and any recommended upgrades before the project moves ahead.
ESA Permit
We open the required ESA permit so the work is documented properly and completed under the correct Ontario approval process from the start.
Careful Rewire
Our electricians route new cable strategically, remove obsolete conductors, and fish wiring carefully to limit unnecessary openings wherever practical.
ESA Inspection
Once the installation is complete, the work is inspected so you receive formal approval showing the rewiring passed and the record is complete.
Final Walkthrough
We test the circuits, label the panel clearly, confirm that devices are working properly, and review the finished work with you before the job is closed out.
Why Mississauga Homeowners Choose Kolji Bros
Older Mississauga homes often contain a mix of original wiring, later additions, and selective upgrades, especially in areas like Mineola, Clarkson, and Applewood, so experienced troubleshooting matters before replacement starts.
ESA Licensed & Insured
We complete rewiring under ESA/ECRA licence 7015453, carry full insurance, and provide the paperwork that matters for insurer acceptance and long-term safety records.
Mississauga Old-Home Specialists
We understand the electrical layouts found in older detached homes, including attic runs, basement ceiling routes, hidden splices, and mixed-era additions from previous renovations.
Minimal Drywall Disruption
We plan the routing carefully and fish where practical so the job stays efficient without creating more patching and repair work than necessary.
Transparent Pricing
Your quote is laid out before work starts, and if hidden conditions are uncovered during the project, we explain the issue clearly before extra scope proceeds.
Fast Turnaround
Most homes are completed within a practical 3-to-7-day range, with the work staged to keep the property as usable as possible during the rewire.
4.9 Google Rating
Homeowners regularly mention clear communication, tidy workmanship, and dependable follow-through, which is reflected in the company’s 4.9 Google rating.
Mississauga Neighbourhoods We Serve
We handle knob and tube rewiring across Mississauga and the surrounding residential pockets where older detached homes, semis, and mixed-era electrical systems are still common.
Not Sure If You Have Knob & Tube?
Call us or send a message through the contact form and we’ll arrange an inspection to confirm what is active, what is abandoned, and what should be replaced first.
Call +1 866 565 5427What Mississauga Homeowners Say
These review examples reflect the kinds of knob and tube replacement jobs we regularly handle in Mississauga and the surrounding residential communities.
“Our insurer gave us a deadline after active knob and tube was found in the attic of our older house in Port Credit. Kolji Bros moved quickly, replaced the remaining lighting circuits, and got us the ESA paperwork we needed without stretching the project out.”
“We were renovating our kitchen in Applewood and discovered old knob and tube still feeding receptacles and part of the main-floor lighting. Their crew sorted out the unsafe mix of old and newer wiring, upgraded the panel, and coordinated properly with our contractor.”
“We were selling our place in Clarkson when the buyer’s inspection flagged active knob and tube in the basement ceiling and an outdated detached-garage feed. Kolji Bros replaced the remaining circuits, labelled everything clearly, and helped us keep the closing on track.”
Knob & Tube Wiring FAQ Mississauga
These are the questions we hear most from Mississauga homeowners dealing with older wiring, insurer deadlines, and renovation discoveries.
Knob & Tube Replacement in Nearby Areas
We also serve the neighbouring communities connected to Mississauga across the west side of the GTA.
Ready to Upgrade the Wiring in Your Mississauga Home?
If an insurer, buyer, or home inspector has raised concerns about outdated wiring, we can assess the system, explain the scope clearly, and complete a code-compliant rewire for your Mississauga property.