Oakville homeowners can run into insurance issues quickly when active knob & tube wiring is still in service. Get a free assessment today
Knob & Tube Wiring Replacement Oakville
Oakville has a broad housing mix, from heritage homes and older detached properties in Old Oakville, Kerr Village, and Bronte to family subdivisions in Glen Abbey, River Oaks, and West Oak Trails, plus townhomes and condo buildings in Uptown Core and newer north-Oakville communities. Inside many of the older houses, active knob and tube wiring can still be hidden in attics, behind finished walls, and above basement ceilings. Our ESA-licensed electricians replace those outdated circuits with modern code-compliant wiring so your Oakville home is safer, easier to insure, and ready for present-day electrical demand.
Actual job photos
Why Knob & Tube Wiring Must Be Replaced
In Oakville, especially in older pockets like Old Oakville and Kerr Village, some homes still rely on wiring systems that were installed long before modern kitchens, home offices, central air, and everyday electronics became standard.
No Ground Wire
This older wiring setup was never built with a grounding conductor, so today’s outlets and connected equipment miss an important layer of electrical protection.
Deteriorating Insulation
As the original insulation ages, it often dries out, crumbles, and splits apart, leaving energized conductors less protected inside concealed structural spaces.
Overloaded Circuits
These circuits were installed for a much lighter era of electrical use and can struggle badly with present-day appliances, chargers, office equipment, and entertainment loads.
Insurance Cancellation
Insurers frequently treat active knob and tube as a major risk, which can create problems with renewals, financing, property sales, or continued coverage.
Buried by Insulation
This wiring method was designed to dissipate heat in open air, so once attic insulation surrounds live runs, the system is operating in unsafe conditions.
Reduced Home Value
Home inspectors, buyers, and lenders regularly flag active knob and tube, which can complicate negotiations and make a property harder to finance or close.
Is Your Insurer Threatening Cancellation?
We can inspect the wiring, outline the required scope in writing, and move quickly on an Oakville rewiring project so you have a clear path before coverage becomes a bigger problem.
Before & After Real Rewiring Jobs
These project photos reflect the kind of knob and tube replacement work often needed in older Oakville homes, including properties around Old Oakville, Bronte, and Kerr Village.
Before
After
A reorganized panel with clearly identified breakers after the older wiring has been removed and the home has been updated to current standards.
What We Find in Oakville Homes
In older sections of Oakville, especially near Old Oakville and Bronte, we regularly uncover porcelain supports, ceramic pass-throughs, cloth-wrapped conductors, and aged splice points hidden above finished spaces.








Finance Your Rewiring Project
Use this estimator to preview payment options for an Oakville knob and tube replacement project before you schedule the 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 Old Oakville and Bronte to targeted electrical corrections in mature Kerr Village and College Park homes, we handle the complete scope of removing unsafe legacy wiring.
Full Home Rewire
We replace active knob and tube throughout the house and install a complete modern wiring system built for today’s outlets, lighting, appliances, and daily electrical use.
Partial Rewire & Targeted Circuits
If only certain portions of the home still contain live knob and tube, we can isolate those sections and replace the remaining outdated circuits without unnecessary added work.
Panel Upgrade
Older homes often need panel improvements at the same time so the new wiring has enough capacity, better circuit organization, and current protective devices.
ESA Permit & Inspection
We take care of the permit and inspection process so the finished rewiring is documented properly and approved under the required Ontario rules.
Insurance Assessment Letter
If your insurer needs written confirmation quickly, we can inspect the property and document what remains active and what electrical work is required.
GFCI & AFCI Upgrades
We add the required protection for kitchens, bathrooms, bedrooms, exterior outlets, and other areas covered by current code requirements.
Attic Insulation Clearance
Where insulation is covering live knob and tube, we complete the electrical replacement first so the attic can be upgraded safely afterward.
Pre-Sale Rewire
We help owners remove a major inspection concern before listing or closing so a real estate transaction is less likely to stall over obsolete wiring.
Want to Know What It Costs?
Review our pricing guide for knob and tube replacement, including how access, panel work, and overall project scope can change the final number.
View Full Cost GuideHow We Replace Knob & Tube Wiring
Our process keeps an Oakville rewiring project organized, well documented, and easier to manage from the first inspection through final approval.
Free Assessment
We visit your Oakville home, inspect accessible attic, basement, panel, and wall areas, and identify exactly where active knob and tube still feeds the property.
Written Quote
You receive a detailed proposal that outlines labour, materials, permit-related work, and any recommended electrical upgrades before the project begins.
ESA Permit
We open the required ESA permit so the job is documented correctly and completed under the proper Ontario approval process from day one.
Careful Rewire
Our electricians route new cable strategically, remove obsolete conductors, and fish wires carefully to limit unnecessary openings wherever practical.
ESA Inspection
After installation, the work is inspected so you receive formal confirmation that the rewiring passed and the approval record is complete.
Final Walkthrough
We test the circuits, label the panel clearly, verify that devices are operating properly, and review the finished work with you before closing out the job.
Why Oakville Homeowners Choose Kolji Bros
Homes in Oakville often contain a mix of original wiring, later additions, and selective upgrades, especially in areas like Old Oakville, Bronte, and College Park, so experienced troubleshooting matters before replacement starts.
ESA Licensed & Insured
We complete rewiring under ESA/ECRA licence 7015453, carry full insurance, and provide the documentation that matters for compliance, resale, and insurer acceptance.
Oakville Old-Home Specialists
We understand the electrical layouts common in older detached homes, including attic runs, basement ceiling routes, concealed splices, and mixed-era changes from previous renovations.
Minimal Drywall Disruption
We plan cable paths carefully and fish where practical so the project stays efficient without creating more patching and repair work than necessary.
Transparent Pricing
Your quote is laid out before work begins, and if hidden conditions appear during the project, we explain the issue clearly before any added scope moves ahead.
Fast Turnaround
Most homes fall within a practical 3-to-7-day schedule, with the job staged to keep the property as functional as possible during the rewire.
4.9 Google Rating
Homeowners regularly comment on clear communication, tidy workmanship, and dependable follow-through, which is reflected in the company’s 4.9 Google rating.
Oakville Neighbourhoods We Serve
We handle knob and tube rewiring throughout Oakville and the nearby residential pockets where older detached homes, heritage properties, 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 addressed first.
Call +1 866 565 5427What Oakville Homeowners Say
These review examples reflect the kinds of knob and tube replacement jobs we regularly handle in Oakville and the surrounding Halton-area communities.
“Our insurer wanted proof that the active knob and tube in the attic and upstairs lighting had to be dealt with right away. Kolji Bros inspected our Old Oakville house, replaced the remaining live circuits, and got us the ESA paperwork quickly enough to keep everything moving.”
“During our kitchen renovation in Bronte, we discovered old knob and tube feeding part of the main floor plus hidden splice points from previous work. Their crew rewired the affected circuits, upgraded the panel, and coordinated cleanly with the rest of our renovation schedule.”
“We were preparing to sell our place in Glen Abbey when the inspection uncovered active knob and tube in the basement ceiling and an outdated feed to the rear workshop. Kolji Bros replaced the remaining circuits, organized the panel clearly, and helped us remove a major issue before closing.”
Knob & Tube Wiring FAQ Oakville
These are the questions we hear most from Oakville homeowners dealing with older wiring, renovation discoveries, and insurance requirements.
Knob & Tube Replacement in Nearby Areas
We also serve the neighbouring communities connected to Oakville across Halton and the west GTA.
Ready to Upgrade the Wiring in Your Oakville 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 Oakville property.

