How much does whole-home renovation cost in Toronto?

With Zigma Group, whole-home renovation starts from $105 per sq ft. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are how much of the house is taken back to the studs; replacing wiring, plumbing and heating; and structural changes and finish level.

Is it better to renovate the whole house at once or room by room?

Doing it as one project lets the wiring, plumbing, insulation and structure be fixed while the walls are open, and avoids redoing finished rooms later. Room-by-room work can suit a smaller budget, but each phase repeats the setup and disruption.

Do I need a permit for a whole-home renovation in Ontario?

Almost always. Structural changes, new or moved plumbing, heating changes and additions need a building permit, and electrical work must be filed with the Electrical Safety Authority. Requirements vary by municipality, so we confirm them for your address.

Do you do whole-home renovation projects in Toronto?

Yes. We work throughout Toronto, including Leaside, The Annex, High Park, Riverdale, The Beaches, Forest Hill and Lawrence Park. Call +1 (647) 718-3913 to arrange a visit.

Who issues the permit for this work in Toronto?

Where a permit is needed, it is issued by the City of Toronto (Toronto Building). We prepare the drawings and handle the application and inspections.

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Whole-Home Renovation

Whole house · Toronto

Whole-Home Renovation in Toronto

A whole-home renovation rebuilds the house you already own: new layout, new systems and new finishes, planned as one project instead of a string of separate jobs. In Toronto, much of the housing is pre-war: narrow semis and detached brick houses with plaster walls, old wiring and shared party walls.

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Renovated living room with oak floors, new trim and a large garden window — From our Cobblestone Drive renovation

Scope

What is included.

Assessment of structure, wiring, plumbing and heating
New floor plan and interior design
Building permit drawings and applications
Strip-out, framing and structural changes
New electrical, plumbing, insulation and drywall
Kitchens, bathrooms, floors, stairs and trim

Cost

What it costs.

From $105per sq ft

What moves the price

How much of the house is taken back to the studs
Replacing wiring, plumbing and heating
Structural changes and finish level

Prices are in Canadian dollars before HST, as of October 2026. Every project is confirmed with a written quote after a site visit.

Local knowledge

Whole-Home Renovation in Toronto.

Homes like these
Houses of this age usually need wiring, plumbing and insulation replaced along with the finishes, so one full renovation is often more economical than working room by room.
Housing
In Toronto, much of the housing is pre-war: narrow semis and detached brick houses with plaster walls, old wiring and shared party walls.
Permits
Building permits in Toronto are issued by the City of Toronto (Toronto Building). We prepare the drawings, submit the application and book the inspections.
Areas we cover
We work throughout Toronto, including Leaside, The Annex, High Park, Riverdale, The Beaches, Forest Hill and Lawrence Park.
Suites and multiplexes
Toronto permits laneway suites, garden suites and, on most residential lots, up to four units in a house. That makes basement apartments and rear additions more feasible here than in many suburbs.
Tight lots
Narrow lots and shared walls mean additions and underpinning often need a minor variance or a neighbour's cooperation, so the approvals take planning.

Before you start

What to know.

Permits
Moving walls, changing structure or altering plumbing and heating usually needs a building permit in Ontario. We prepare the drawings and handle the application with your municipality.
Living arrangements
A full renovation touches every room, so most families move out for the main construction period. We set the sequence with you before work starts.
What we find inside
Older GTA homes often hide outdated wiring, old plumbing or past repairs. We check what we can before demolition and tell you as soon as something changes the plan.

How we work

One team for every stage.

AssessWe survey the house as it stands.
Design and permitsDrawings and approvals before work starts.
Strip-outWhat is worn out comes off.
RebuildStructure, wiring, plumbing and walls.
FinishesCabinetry, tile, floors and paint.
HandoverWalkthrough and documents.

Questions

Whole-Home Renovation in Toronto: the short answers.

How much does whole-home renovation cost in Toronto?: With Zigma Group, whole-home renovation starts from $105 per sq ft. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are how much of the house is taken back to the studs; replacing wiring, plumbing and heating; and structural changes and finish level.
Is it better to renovate the whole house at once or room by room?: Doing it as one project lets the wiring, plumbing, insulation and structure be fixed while the walls are open, and avoids redoing finished rooms later. Room-by-room work can suit a smaller budget, but each phase repeats the setup and disruption.
Do I need a permit for a whole-home renovation in Ontario?: Almost always. Structural changes, new or moved plumbing, heating changes and additions need a building permit, and electrical work must be filed with the Electrical Safety Authority. Requirements vary by municipality, so we confirm them for your address.
Do you do whole-home renovation projects in Toronto?: Yes. We work throughout Toronto, including Leaside, The Annex, High Park, Riverdale, The Beaches, Forest Hill and Lawrence Park. Call +1 (647) 718-3913 to arrange a visit.
Who issues the permit for this work in Toronto?: Where a permit is needed, it is issued by the City of Toronto (Toronto Building). We prepare the drawings and handle the application and inspections.