Answered by a licensed electrician
Do insurers require electrical updates?

Quick answer
Yes. Ontario insurers can require electrical updates before issuing, renewing, or continuing home insurance, especially for knob-and-tube wiring, aluminum wiring, 60A service, fuse panels, or unpermitted work. A licensed electrical inspection with a written report typically costs $250–$400 in the GTA and gives the insurer repair findings, photos, and ESA documentation where work is required.
Insurers do not all use the same checklist, but they often require electrical updates when the system looks old, altered, overloaded, or undocumented. The fastest path is to get a licensed electrical inspection, separate the insurance concern from the actual safety issue, complete the required repairs, and send the insurer a clear report plus ESA paperwork where a notification was required.
City Power Electrical Services is a Licensed Electrical Contractor, ECRA/ESA #7015314, based in North York and serving Toronto and the GTA; we provide written estimates, file ESA notifications where required, and give you documentation your broker can actually forward.
Yes, insurers can require updates before they insure or renew a home
An insurer can make electrical updates a condition of coverage, even when the house has not “failed” an ESA inspection. Insurance is risk-based. If the underwriter sees a fuse panel, active knob-and-tube, aluminum branch wiring, a 60-amp service, or obvious homeowner wiring, they may ask for proof of repair, a licensed electrician’s report, or replacement by a deadline.
This often comes up during:
- Buying an older Toronto home and arranging a new policy
- Renewing insurance after a home inspection flags electrical concerns
- Changing insurers after a renovation or claim
- Adding a basement apartment, hot tub, EV charger, or major appliance load
- Selling a home where the buyer’s insurer asks electrical questions
The important distinction: the insurer’s requirement is not always the same thing as an Ontario Electrical Safety Code order. ESA enforces electrical safety requirements. The insurer decides what risk it is willing to cover. A system can be legal for its era but still unacceptable to an insurer without upgrades or documentation.
If your letter says “provide an electrician’s report,” start with a home electrical safety inspection. If it says a specific item must be replaced, such as knob-and-tube or a fuse panel, an inspection still helps confirm scope before you commit to the larger job.
The usual insurer concerns are knob-and-tube, aluminum wiring, 60A service, fuse panels, and unpermitted work
These five issues account for most insurance-triggered electrical calls. They matter because they affect fire risk, available capacity, overcurrent protection, grounding, and whether the system was inspected when changed.
| Insurer concern | What the insurer is worried about | Common next step |
|---|---|---|
| Knob-and-tube wiring | No equipment grounding, brittle insulation, concealed splices, insulation contact, and unknown modifications | Replace active knob-and-tube and provide documentation |
| Aluminum branch wiring | Loose or oxidized terminations at devices, switches, lights, and junctions | Approved copper pigtailing or rewiring, with ESA documentation |
| 60A service | Not enough capacity for modern loads such as air conditioning, EV charging, finished basements, or electric cooking | Service and panel upgrade if the load calculation requires it |
| Fuse panel | Oversized fuses, missing covers, poor labelling, and limited breaker-style protection | Replace with a modern breaker panel where appropriate |
| Unpermitted work | Unknown workmanship behind finished walls, unsupported cables, buried junctions, incorrect breakers, or missing GFCI/AFCI protection | Inspection, defect correction, and ESA notification where required |
Knob-and-tube is usually the hardest insurance issue to negotiate because many insurers do not want active knob-and-tube in the home at all. A full replacement in a typical Toronto house often lands around $9,000–$15,000, depending on access, wall finishes, and home size.
Aluminum wiring is different. Insurers may accept documented remediation instead of a full rewire. In many GTA homes, complete pigtailing with approved AlumiConn connectors is commonly in the $2,500–$5,000 range. The documentation matters: the insurer usually wants more than “a handyman tightened the outlets.”
A 60-amp fuse service is both a capacity and equipment issue. Upgrading from a 60A fuse panel commonly falls in the $4,000–$6,000 range because the meter base and service entrance often need replacement, not just the interior panel. If the home already has 100A and the concern is capacity, a 200A upgrade is commonly $3,200–$4,500 including ESA notification and inspection.
For panel age and condition, it helps to understand what is normal and what is a warning sign. Our guide on how long electrical panels last explains when age, corrosion, heat marks, obsolete breakers, or poor access start to matter.
A licensed inspection report is valuable because it turns a vague insurance demand into a repair list
A proper electrical inspection gives the insurer, broker, buyer, or lender something more useful than a photo of the panel. It identifies what exists, what is unsafe, what likely needs an ESA notification, and what can be corrected without replacing the whole system.
For an insurance-driven inspection, we normally look at:
- Panel type, service size, main breaker or fuse rating, labelling, clear working space, and signs of overheating
- Grounding and bonding at the service, water piping, panel, and major equipment where visible
- Evidence of knob-and-tube, aluminum branch wiring, mixed wiring methods, or open splices
- Outlet grounding, polarity, GFCI protection in wet or exterior locations, and visible device condition
- Smoke/CO detector presence and wiring where the inspection is tied to a rental, basement, or sale
- Basement, garage, kitchen, bathroom, laundry, and exterior circuits because these are common DIY problem areas
- Any new loads that may have been added without proper circuits, such as EV chargers, hot tubs, kitchen equipment, or basement suites
A comprehensive GTA inspection is typically $250–$400. That is a small cost compared with replacing the wrong thing or promising an insurer a repair that does not solve the underwriting concern. If the issue is a specific fault, nuisance tripping, or intermittent power loss, the work may be closer to diagnosis; our page on electrical diagnosis cost explains that difference.
The report should be written in plain language. It should separate observations from recommendations. It should not exaggerate, and it should not hide defects. If the insurer asks for photos, we include relevant photos. If repairs need permits, the report should say the repairs must be completed by a Licensed Electrical Contractor with ESA notification where required.
ESA documentation matters when electrical work is repaired, replaced, or added
If the inspection finds work that needs correction, ESA documentation is often what makes the insurer comfortable. In Ontario, many electrical jobs require an ESA notification before work begins, followed by inspection or acceptance through the ESA process. The contractor who does the work normally files the notification, not the homeowner.
For insurance purposes, useful documentation can include:
- Written inspection report from a licensed electrical contractor
- Itemized quote showing the exact corrective work
- ESA notification number for permit-required work
- ESA certificate or inspection record when issued
- Photos of corrected panel work, devices, junction boxes, grounding, or removed wiring
- Updated panel directory and circuit descriptions
- Confirmation that obsolete or unsafe wiring was disconnected, not merely abandoned in a way that leaves uncertainty
This is especially important for finished basements and secondary suites. If a basement was wired without permits, the issue is not just whether lights turn on. The insurer may care about smoke/CO interconnection, kitchen circuits, bathroom GFCI protection, panel capacity, and whether junction boxes are accessible. Our answer on whether basement electrical work needs a permit explains why finished spaces get more scrutiny.
ESA does not “bless” every old part of a house simply because one repair is done. The inspection is tied to the notified work. That is why the scope must be clear. If the insurer’s concern is “active knob-and-tube throughout the home,” replacing one visible run will not usually satisfy the issue. If the concern is “unpermitted basement wiring,” the corrective scope may need to include opening access points, tracing circuits, adding junction boxes, correcting device spacing, and installing required protection.
The right route depends on what the inspection finds
The repair path should match the risk. Do not agree to a full rewire because of a vague insurance email, and do not send a casual note when the insurer asked for formal documentation. Start with the letter, the deadline, and the exact wording.
Use this as a practical decision guide:
- If the insurer asks for an electrician’s report, book an inspection first.
- If active knob-and-tube is confirmed, plan for replacement of the active knob-and-tube circuits and ESA documentation.
- If aluminum wiring is present, ask whether documented copper pigtailing with approved connectors will satisfy the insurer before pricing a full rewire.
- If the home has a 60A fuse service, expect a service upgrade discussion, especially if the home has modern large loads.
- If the panel is obsolete, damaged, hot, corroded, wet, or poorly modified, treat that as a safety issue, not just paperwork. Panel heat concerns are covered in why an electrical panel feels hot.
- If unpermitted renovations are the issue, trace the affected circuits and correct the work under ESA notification where required.
Some upgrades also help beyond insurance. A safer panel, documented wiring, grounded outlets, proper kitchen and laundry circuits, and permitted basement electrical can reduce objections during a sale. For resale-focused decisions, see electrical upgrades that add home value.
If you have a deadline, send us the insurer’s wording before the visit. The repair may be simple, but the paperwork has to match the request. A clean report, proper ESA documentation, and a realistic correction plan are what usually move the file from “coverage pending” to “underwriter has what they asked for.”
Want a licensed electrician to take a look?
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People also ask
Can my insurer cancel coverage because of knob-and-tube wiring?
An insurer can refuse, limit, or decline to renew coverage if active knob-and-tube wiring does not meet its underwriting rules. Some may allow temporary coverage with a deadline for replacement; others will not. A licensed inspection should confirm whether the knob-and-tube is active, where it remains, and what documentation will be needed after replacement.
Will insurers accept aluminum wiring if it is repaired?
Often, yes, but it depends on the insurer. Many will consider aluminum wiring acceptable if every connection is remediated using an approved method, documented by a licensed electrical contractor, and inspected where required. In the GTA, whole-home aluminum pigtailing commonly costs $2,500–$5,000, which is usually far less disruptive than a full rewire.
Do I need an ESA certificate for insurance electrical repairs?
If the repair work requires an ESA notification, the insurer may ask for the ESA notification number, inspection record, or certificate once the work is complete. A written electrician’s report alone may be enough for inspection-only requests, but not for new circuits, panel work, service upgrades, or substantial wiring corrections.
How fast can I get an insurance electrical report?
Timing depends on access, the home’s size, and whether hidden wiring has to be traced. The inspection itself is usually much faster than the repairs. If the insurer gave you a deadline, share the letter before booking so the inspection report addresses the exact concerns instead of producing a generic safety checklist.