How much does condo rewiring cost?

Condo rewiring is priced by access, not just by unit size

Condo rewiring is normally quoted in writing after a site visit because two units with the same square footage can have completely different wiring access. A drywall ceiling with open bulkheads is very different from a concrete ceiling with embedded conduit and no chase space.

In a detached house, an electrician may be able to work from the basement, attic, or unfinished joist bays. In a condo, the wiring may be in conduit inside concrete walls, above a suspended ceiling, through shared shafts, or inside metal stud partitions. That changes how long the work takes and whether walls or ceilings need to be opened.

For comparison only, a full rewire of a typical 1,500–2,000 sq ft GTA house is published at $8,000–$15,000 depending on access, finishes, and panel work. That is not a condo price. Condo work can be smaller in scope, but it can also be slower because every route is constrained by the building.

The main cost drivers are:

• Whether the work is partial, such as a kitchen renovation, or a full-unit rewiring plan
• Whether existing conduit can be reused or new conduit must be surface-mounted or concealed
• Whether walls are drywall, block, or poured concrete
• Whether ceilings are concrete slab, drop ceiling, or framed bulkhead
• Whether the unit panel has spare breaker spaces and capacity
• Whether shutdowns, electrical room access, or superintendent coordination are needed
• Whether the condo board requires drawings, contractor insurance documents, or alteration approval before work starts

City Power is a Licensed Electrical Contractor, ECRA/ESA #7015314; for condo rewiring we provide a free written estimate after checking the unit, renovation scope, board rules, and panel access.

For the actual wiring scope, start with condo and home rewiring service so the quote is built around the routes that are physically available, not a generic per-square-foot guess.

Partial rewiring during a renovation costs less than full-unit rewiring, but it must still be planned as one system

Partial condo rewiring is usually the practical choice when you are renovating a kitchen, bathroom, laundry closet, or media wall. Full-unit rewiring makes sense when the unit is being gutted, the original wiring is obsolete, or the panel and circuits no longer match how the suite is used.

A kitchen renovation, for example, may need new countertop receptacles, dedicated appliance circuits, under-cabinet lighting, and corrected GFCI protection. A bathroom renovation may need a fan, lighting, GFCI protection, and bonding checks. A living room renovation may involve relocated outlets, dimmers, TV wiring, or added lighting.

Here is how the two approaches compare:

Some small pieces have known starting points. A standard outlet or switch replacement is commonly $80–$120 each when it is a like-for-like device replacement. GFCI outlet installation is typically $120–$180 per unit. Smart dimmers, timers, USB-C receptacles, and other specialty devices commonly land in the $120–$250 installed range depending on the device.

Those numbers stop being the right pricing method when the wall must be opened, a new conduit route is needed, or the circuit has to be extended from the panel. If the renovation adds a new appliance, the circuit cost can become a larger part of the budget. A typical 20A dedicated circuit is $250–$500 depending on the route, while heavier 30A–50A circuits are commonly $400–$900 where the run and finish conditions are straightforward.

If your question is only about devices, compare the specific answers for adding an outlet, replacing a light switch, or installing a dimmer switch. Condo rewiring is different because it often includes the route, not just the device.

Condo rules can add time because the electrician may need approvals before touching the wiring

Condo board approval can affect both timing and cost because the electrical work happens inside a privately owned unit but often depends on common elements. The panel feeder, electrical room, concrete slab, risers, shafts, and hallway service spaces may all fall under building control.

Before quoting a serious rewiring job, we look for the practical building rules:

• Approved work hours for noisy drilling, coring, hammering, or shutdowns
• Elevator booking rules for bringing tools, ladders, conduit, and materials up to the unit
• Parking and loading dock limits that affect setup time
• Requirements for contractor licence, WSIB/insurance documents, or a renovation package
• Whether the board requires drawings before approving new circuits or panel work
• Whether any work can touch common elements, risers, or shared electrical rooms
• Whether a superintendent must unlock the electrical room or witness a shutdown

Working hours matter. Many condos restrict noisy work to weekday daytime windows, and some require notice to neighbouring units. That can stretch a job over more days even when the electrical hours are not unusually high.

Concrete matters too. Drilling into a slab, cutting channels, or using anchors may be restricted because of post-tension cables, embedded services, fire separations, or noise rules. In many buildings, the safer route is to use existing conduit, framed bulkheads, dropped ceilings, cabinetry runs, or surface raceway where permitted and acceptable to the owner.

Panel access is another condo-specific issue. Your suite may have a load centre in the unit, but the main disconnect, meter stack, or feeder equipment may be in a locked electrical room. If a circuit must be traced, isolated, or upgraded, the building may need to provide access. That coordination is part of the cost picture.

ESA notification and inspection are required where the rewiring is more than a minor device swap

Condo rewiring that adds, extends, or replaces wiring normally requires an ESA notification and inspection. The Electrical Safety Authority does not replace condo board approval; both may be needed. The board controls building permission, while ESA checks electrical safety under the Ontario Electrical Safety Code.

For a renovation rewire, the ESA process usually has two inspection points when walls or ceilings are opened:

• Rough-in inspection before drywall, tile backing, cabinetry panels, or ceiling finishes hide the wiring
• Final inspection after devices, breakers, covers, labelling, and equipment connections are complete

The inspector may look at conductor size, breaker size, box fill, cable or conduit support, GFCI protection, AFCI requirements where applicable, bonding and grounding, panel labelling, and whether wiring is protected from physical damage. In a condo, they may also care about how wiring passes through fire-rated assemblies or shared spaces, depending on the work.

Do not let a renovation close the walls before the electrical rough-in is inspected when an inspection is required. Reopening finished walls, tile, or millwork is far more disruptive than scheduling the inspection at the right point.

Some appliance circuits also need careful planning. A dryer, wall oven, cooktop, heat pump water heater, or EV-ready rough-in can change the load calculation and the panel layout. For heavier circuit examples, see the cost guides for dryer circuit installation, stove circuit installation, and AC circuit installation.

A good condo rewiring quote should show the route, the finish impact, and who handles approvals

A proper condo rewiring quote should not just say “rewire condo.” It should describe what areas are included, how the wiring will be routed, what finishes will be opened, what is excluded, and what approvals are assumed.

Ask for these items in writing:

• The rooms, circuits, devices, and appliances included in the scope
• Whether the work is using existing conduit, new conduit, cable in framed walls, or surface raceway
• Whether drywall, tile, millwork, concrete, or ceiling repairs are included or excluded
• Whether ESA notification and inspection are included where required
• Whether panel labelling and circuit identification are included
• Whether the electrician needs superintendent access, shutdown windows, or electrical room access
• Whether you must provide condo board approval before work starts
• Whether the quote assumes clear access to the unit, parking, elevators, and work areas

The best time to price condo rewiring is before cabinets, flooring, and ceilings are finalized. Once the designer, contractor, and electrician agree on appliance locations, lighting controls, outlet heights, and panel limitations, the quote becomes much more accurate.

If the unit is occupied, also plan for dust control, daily cleanup, and temporary power needs. If the unit is vacant and being renovated, the work can often be staged more efficiently around demolition, framing, rough-in, inspection, and closing.

For broader electrical cost questions, the electrical answers hub is useful, but condo rewiring needs a site-specific quote because the building structure is the biggest variable.