Panel upgrades in Oshawa: what to expect
Most homes we open up in Oshawa are older core neighbourhoods and new north-end subdivisions. Older houses here are often still on 60 or 100 A services — fine when they were built, tight once you add central air, an EV and an induction range.
Service upgrades in Oshawa need a disconnect and reconnect from Oshawa Power. We file the ESA notification, book the utility, and on the day swap the panel, re-terminate every circuit and test before Oshawa Power restores power — usually the same afternoon.
Adding a basement apartment is one of the most common reasons Oshawa homeowners call us about their panel: a second household means a second set of loads, and often a dedicated sub-panel.
Local notes: Oshawa
Older core homes. Pre-war and post-war homes near downtown can carry original wiring, small services and decades of DIY additions. We inspect, prioritize and fix what matters first.
Buyers and investors. Oshawa sees many purchases of older homes for rental or renovation. A pre-purchase electrical inspection with a written report helps price the work.
Typical costs
| Scope | Typical range |
|---|---|
| 100 A → 200 A, panel and meter base in same location | $3,500 – $5,500 |
| Includes new mast / service entrance or panel relocation | $5,500 – $8,000 |
| Fuse panel replacement (keeping 100 A) | $2,000 – $3,200 |
| Sub-panel for a basement, garage or addition | $1,200 – $2,500 |
Where we work in Oshawa
We cover all of Oshawa, including Downtown Oshawa, O'Neill, McLaughlin, Vanier, Lakeview, Centennial, Windfields, Kedron, Eastdale, Samac. Every job starts the same way: a site visit, a written fixed quote, then the work — permit included.
More on this service: Panel & service upgrades · Electrician in Oshawa
Questions from Oshawa
How long does a panel upgrade take in Oshawa?
Usually one day on site with four to eight hours without power. Booking the Oshawa Power disconnect typically takes one to three weeks.
Who handles the Oshawa Power side?
We do. We book the disconnect and reconnect with Oshawa Power and file the ESA permit — you don't need to call either.
Do all Oshawa homes need 200 A?
No. If you're only adding an EV charger, load management can often avoid an upgrade. We'll calculate your actual load first.
Panel upgrades nearby
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