A bathroom is the smallest room in the house and one of the most expensive to renovate per square foot. Plumbing, electrical, tile and waterproofing all converge in a few square metres, and Ontario labour rates mean the trades alone can exceed the cost of every fixture combined.
Ontario contractors in 2026 typically quote $10,000 to $25,000 for a mid-range full bathroom renovation, with basic refreshes starting near $8,000 and luxury ensuites running past $50,000. The figures below are NorthPeak planning estimates drawn from Ontario contractor cost guides — always get three itemized quotes before committing.
Cost by project scope
Scope matters more than size. Moving plumbing or walls triggers permits, inspections and far more labour:
| Scope | Typical range | What it includes |
|---|---|---|
| Basic refresh | $8,000–$15,000 | Paint, new toilet and faucets, vanity swap, light fixtures; no layout changes |
| Mid-range remodel | $15,000–$25,000 | New tile, tub-to-shower conversion, vanity and plumbing fixtures, upgraded lighting |
| High-end ensuite | $25,000–$50,000+ | Custom walk-in shower, heated floors, freestanding tub, premium tile and stone |
Where the money goes, trade by trade
On a $30,000 mid-range Toronto-area renovation, contractor cost guides break spending down roughly like this:
- Plumbing (15–20%, ~$4,500–$6,000): fixture rough-ins, valves, toilet and shower installs. GTA licensed plumbers run about $85–$150/hour; moving a toilet drain adds $500–$2,000 per fixture.
- Tile and waterproofing (20–30%): the single biggest line item — floor and wall tile runs roughly $5–$30 per sq ft installed.
- Fixtures and materials (25–35%): vanity ($300–$5,000+), tub or shower ($400 acrylic to $10,000+ custom), toilet, faucets.
- Electrical (8–12%, ~$2,500–$3,500): pot lights, vanity lighting, exhaust fan, GFCI protection. Ontario rates run roughly $65–$90/hour, and ESA inspection is mandatory before walls close.
- General labour (15–20%): demolition (~$1,200), drywall, carpentry, paint.
Permits and the rules that add cost
You generally do not need a building permit for like-for-like fixture swaps, but moving plumbing, walls or electrical triggers permits and inspections. Ottawa, for example, charges about $12.75 per $1,000 of construction value (minimum ~$117). Budget $100–$1,500 for municipal fees, and never let a contractor talk you into skipping permits on plumbing relocations — unpermitted work can void insurance and kill a future sale.
Biggest budget lever: keep the plumbing where it is. Relocating a toilet or shower drain is the fastest way to turn a $18,000 renovation into a $30,000 one.
What it does for resale value
Bathroom remodels are among the highest-ROI renovations in Ontario, with contractor guides citing 70–90% cost recovery at resale depending on scale and quality. A dated main bathroom is also one of the first things buyers flag on inspection — spending $15,000 to modernize one can add $10,000–$13,000 to appraised value while making the home meaningfully easier to sell.
Frequently asked questions
How much does a bathroom renovation cost in Ontario in 2026?
A mid-range full bathroom renovation in Ontario typically costs $15,000–$25,000 in 2026. Basic cosmetic refreshes run $8,000–$15,000, while high-end ensuites with heated floors and custom showers reach $25,000–$50,000 or more. These are planning estimates — get three itemized quotes.
What is the most expensive part of a bathroom renovation?
Tile and waterproofing (20–30% of the budget), followed by fixtures and materials (25–35%). Plumbing is 15–20% unless you relocate drains, which adds $500–$2,000 per fixture.
Do I need a permit to renovate a bathroom in Ontario?
Not for like-for-like fixture swaps, but yes if you move plumbing, walls or electrical. Permit fees are typically $100–$1,500 depending on the municipality, and electrical work requires ESA inspection.
How can I keep bathroom renovation costs down?
Keep plumbing fixtures in their existing locations, choose mid-range tile and fixtures, and get at least three itemized quotes. Avoiding layout changes is the single biggest saver.
Does a bathroom renovation increase home value?
Yes — bathroom remodels typically recover 70–90% of their cost at resale in Ontario, and a modernized bathroom makes a home easier to sell.
Sources and methodology
- Vista Builders: Home Renovation Cost in Ontario (2026 Guide)
- Markway Homes: Bathroom Renovation Costs in Ontario
- Ottawa General Contractors: Bathroom Renovation Cost in Ottawa (2026)
- Canada Mortgage and Housing Corporation (CMHC)
This article provides general information for planning purposes, not professional advice or a quote. Cost figures are NorthPeak planning estimates unless a source is named; confirm current prices with licensed local contractors and professionals before making decisions.