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If you are planning a whole-home renovation in Toronto, Markham, Vaughan, Richmond Hill, Aurora or Newmarket, the honest answer to "what will it cost?" is "it depends." The good news is that it depends on a handful of factors you can understand before you ever sign a contract. Below are cost factors and how to protect your budget.
What drives cost per square foot for a full home renovation in the GTA?
Most GTA homeowners land somewhere between a light refresh and a full gut renovation.
| Renovation level | What it usually includes |
|---|---|
| Cosmetic refresh | Paint, flooring, lighting, fixtures, light updates |
| Mid-range full renovation | New kitchen and bathrooms, flooring, some electrical/plumbing updates, new finishes |
| High-end / full gut | Structural changes, new mechanicals, premium finishes, custom millwork |
| Renovation with addition | All of the above plus new square footage |
Costs vary by municipality, home age, finishes and market conditions. A site visit is required for a firm quote.
What factors change the price of a whole-home renovation?
Two homes with the same square footage can have very different budgets. The biggest drivers are:
- Scope and layout changes. Moving walls, kitchens and bathrooms costs far more than updating them in place.
- Structural work. Removing a load-bearing wall typically requires an engineered beam and a building permit.
- Mechanical systems. Older Toronto-area homes may have knob-and-tube or aluminum wiring, a 60-amp panel, galvanized or lead water lines, or an aging furnace. Updating these adds cost, but it is often money well spent.
- Age and hidden conditions. Once walls are opened, surprises can appear: water damage, outdated insulation, or materials such as asbestos in some older homes, which may need testing and safe removal.
- Finish level. Stock cabinetry versus custom millwork, or porcelain versus natural stone, can swing a budget dramatically.
- Design, engineering and permit fees. These are real costs that belong in your budget from day one.
- Site access. Tight lots in older Toronto neighbourhoods can increase labour and material-handling time.
What is included in a full home renovation budget?
A complete budget should account for more than tile and cabinets. Ask any contractor to show you where each of these sits:
- Demolition, disposal and site protection
- Framing and structural work
- Electrical, plumbing and HVAC
- Insulation, drywall and air sealing
- Flooring, stairs, trim and doors
- Kitchen(s) and bathroom(s)
- Windows and exterior updates, if in scope
- Painting and finishing
- Design, engineering and permit fees
- Project management and site supervision
- A contingency fund for the unexpected
As a general rule of thumb, many renovators recommend holding back contingency, and more for older homes.
Do I need permits for a full home renovation in Toronto?
Usually, yes, for at least part of the work. The Ontario Building Code (OBC) sets the minimum construction standards, and your local building department enforces it. Permits are generally required for structural changes, new or relocated plumbing drains, changes to HVAC, new window or door openings, and adding or finishing living space. Electrical work must be done by a licensed electrical contractor and is subject to Electrical Safety Authority (ESA) requirements.
Toronto, Markham, Vaughan, Richmond Hill, Aurora and Newmarket each run their own permit processes, and timelines vary. Purely cosmetic work often does not need a permit, but always confirm with your municipality. We guide clients through what is needed on their specific project.
How can I avoid budget surprises?
- Start with a detailed scope. The more specific the scope, the more reliable the quote.
- Get itemized pricing. Look for clear line items and defined allowances for finishes.
- Separate must-haves from nice-to-haves. Decide before construction starts, not during.
- Plan the contingency. Do not spend it in advance.
- Lock in selections early. Late changes are the most common source of cost and delay.
- Get it in writing. A written contract with a payment schedule protects both sides.
How does the 15% off Summer 2027 offer work?
Kings Valley Homes is currently offering 15% off full home renovations booked now for Summer 2027. Booking early lets us complete design, engineering and permit applications well ahead of the construction season, and lets you lock in your start window before the calendar fills. Ask us for the full offer details when you book your free consultation, and we will confirm what applies to your project in writing.
Is it cheaper to renovate or rebuild?
It depends on the condition of the home, the foundation and what you want to change. Renovation often keeps costs lower when the structure is sound. A rebuild can make sense when the layout, foundation or mechanical systems would require so much work that you would essentially be starting over. A site visit helps us compare both honestly.
Frequently Asked Questions
How much does a full home renovation cost in Toronto in 2026?
Costs vary with scope, site conditions and finishes, so the only reliable number is a quote based on a site visit.
How long does a full home renovation take in the GTA?
Many full renovations take roughly 4 to 9 months of construction, plus design and permit time beforehand. Scope, material lead times and permits all affect the schedule.
Does Kings Valley Homes offer a discount on full renovations?
Yes. We are offering 15% off full home renovations booked now for Summer 2027. Contact us for details and to confirm what applies to your project.
Do I need to move out during a full home renovation?
Often, yes, especially if kitchens, bathrooms and mechanical systems are being replaced at once. We discuss living arrangements and phasing options during your consultation.
Is Kings Valley Homes insured?
Yes. We are fully insured with WSIB coverage, and you are welcome to read our Google reviews before you book.