⚠️ Davenport insurance providers may decline coverage on homes with active knob & tube wiring. Book a free assessment today →
Knob & Tube Wiring Replacement Davenport
Davenport has the kind of older housing where original wiring often still survives, from brick semis near Regal Heights to early detached homes around Corso Italia and century-era properties bordering Wychwood Park. If your house still has active knob and tube, our ESA licensed electricians can replace it with modern code-compliant wiring that supports current electrical use, improves safety, and helps keep the property insurable.
Actual job photos
Why Knob & Tube Wiring Must Be Replaced
Older Davenport houses were built for a different era of electrical use, long before today’s kitchens, home offices, air conditioning, and high-demand appliances became standard.
No Ground Wire
Knob and tube systems were installed without a dedicated grounding path, so the electrical protection expected by modern outlets, devices, and appliances simply is not there.
Deteriorating Insulation
As the original cloth and rubber coverings age, they become dry, fragile, and prone to breaking apart, which can leave live conductors exposed inside concealed spaces.
Overloaded Circuits
These circuits were never meant to support the demands of current-day living, so even a modestly updated home can end up pushing them well past their safe capacity.
Insurance Cancellation
Many insurers treat active knob and tube as a serious underwriting issue, which can complicate renewals, delay purchases, or trigger requests for urgent upgrades.
Buried by Insulation
Because knob and tube relies on open air around the conductors, covering it with insulation traps heat and creates a condition that should not be left in service.
Reduced Home Value
Outdated wiring can become a major issue in real estate negotiations because buyers, inspectors, and lenders see it as a hidden cost that must be resolved.
Has Your Insurer Asked for Electrical Upgrades?
We can inspect your Davenport property, provide written findings, and help you move quickly if you are working against an insurance or closing deadline.
Before & After Real Rewiring Jobs
Actual photos from Kolji Bros knob and tube replacement projects serving older homes in Davenport and nearby west-central Toronto neighbourhoods.
Before
After
New panel with clearly labelled, code-compliant breakers installed as part of a complete rewiring project
What We Find in Davenport Homes
In older properties around Corso Italia, Regal Heights, and the streets leading toward Wychwood Park, we regularly uncover porcelain knobs, ceramic tubes, cloth-wrapped wire, and old splices hidden beside newer work.








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Our Knob & Tube Rewiring Services
From full-home rewires in older Davenport houses to targeted upgrades where only part of the wiring remains original, we handle the complete scope of replacement work.
Full Home Rewire
We replace active knob and tube throughout the property and install modern cable systems using routing methods designed to reduce unnecessary wall and ceiling damage.
Partial Rewire & Targeted Circuits
If only certain rooms or branches still contain obsolete wiring, we can rewire those areas and integrate them correctly with the home’s newer electrical work.
Panel Upgrade
Many homes with knob and tube still rely on undersized services, so we often pair rewiring with a panel upgrade that better fits modern electrical demand.
ESA Permit & Inspection
All replacement work requires an ESA permit. We handle the application, coordinate inspection, and provide the certificate needed for your records and insurer.
Insurance Assessment Letter
If you need documentation quickly, we can inspect the property and provide written findings that explain the scope and condition of the active knob and tube wiring.
GFCI & AFCI Upgrades
As part of the rewire, we install the protection devices required for kitchens, bathrooms, living areas, and other spaces under the current electrical code.
Attic Insulation Clearance
If insulation is covering active knob and tube in the attic, we remove the obsolete wiring first so insulation work can move ahead safely and legally.
Pre-Sale Rewire
A completed rewire with ESA certification removes one of the biggest concerns raised by buyers, inspectors, and lenders during a home sale.
Want to Know What It Costs?
Detailed pricing for knob and tube rewiring in Davenport, broken down by home size, project scope, and whether a panel upgrade is also needed.
View Full Cost GuideHow We Replace Knob & Tube Wiring
A structured, minimally invasive process designed to protect your home and keep the project moving efficiently.
Free Assessment
We visit your Davenport property, inspect the panel, basement, attic, and accessible framing, and identify exactly where the old wiring remains active.
Written Quote
You receive a detailed written estimate covering labour, materials, permits, and any related panel work before the job begins.
ESA Permit
We arrange the required ESA permit for the rewiring work so the installation is completed through the proper legal process.
Careful Rewire
Our electricians run new NMD-90 cable through the home, disconnect obsolete conductors, and use planned routes to limit drywall and plaster disruption.
ESA Inspection
After installation, the work is reviewed through the official inspection process, and the project is signed off when it meets code requirements.
Final Walkthrough
We test outlets, switches, fixtures, and panel labelling, then walk you through the finished work before the project is closed out.
Why Davenport Homeowners Choose Kolji Bros
We work on older homes across west-central Toronto and understand how knob and tube is typically hidden in houses around Davenport, Corso Italia, and Wychwood Park.
ESA Licensed & Insured
Your project is completed under proper permit with Ontario code compliance, formal inspection, and the documentation needed by insurers and future buyers.
Old-Home Specialists
We know the wiring patterns, concealed junctions, and renovation layers common in older Toronto housing, which helps us diagnose problems faster and plan smarter routes.
Minimal Drywall Disruption
We use cable-fishing techniques and carefully planned access points to keep patching to a minimum wherever the structure and layout allow.
Transparent Pricing
We provide written pricing up front and explain recommended upgrades before any extra work moves ahead, so you always know what is included.
Fast Turnaround
Most homes can be completed within a matter of days, with the work scheduled carefully so the household can keep functioning during the project.
4.9 Google Rating
Homeowners consistently mention clear communication, tidy work, and reliable follow-through, which is why the company maintains its strong Google rating.
Davenport Neighbourhoods We Serve
We handle knob and tube rewiring across Davenport and nearby districts where older semis, detached homes, and renovated income properties often still contain legacy wiring.
Not Sure If You Have Knob & Tube?
Call us or fill out our contact form. We’ll inspect the home, explain what is still active, and tell you exactly what the next step should be.
Call +1 866 565 5427What Davenport Homeowners Say
Real feedback from rewiring projects in older homes around Davenport and nearby neighbourhoods.
“Our insurer wanted proof that the old wiring in our Regal Heights semi was being replaced. Kolji Bros moved fast, handled the permit, rewired the house, and got us the ESA paperwork we needed without any drama.”
“We bought an older house near Corso Italia and discovered active knob and tube in the attic and basement after closing. They rewired it, upgraded the panel, and kept the patching surprisingly limited.”
“Our triplex near Dovercourt Village had a mix of old wiring and messy additions from previous renovations. Kolji Bros sorted it out, cleaned up the panel layout, and explained every stage clearly.”
Knob & Tube Wiring FAQ Davenport
Answers to the questions we hear most from homeowners dealing with older wiring in Davenport homes.
Knob & Tube Replacement in Nearby Areas
We also serve nearby west-central Toronto neighbourhoods connected to Davenport through older housing stock and similar electrical issues.
Ready to Make Your Davenport Home Safe & Insurable?
Do not wait for an insurance deadline or home sale to force the issue. Get a free in-home assessment from electricians experienced with older Davenport properties, permit-based rewiring, and modern code upgrades.

