Bathroom renovation costs in Canada: what a complete quote should include

Choose the type of bathroom project first

Keeping a sound tub and replacing a vanity is different from stripping a room, rebuilding a shower and moving the toilet. Write down the intended layout and the condition of the existing services. State whether the quote must include every fixture, tile, accessory and connection, or whether you will buy selected products separately.

Specify the actual toilet, vanity, shower valve, enclosure and fan before the relevant rough-in work. A concealed valve cannot be selected only for its visible trim; the installer needs the matching assembly and access requirements. If an item is undecided, record a product allowance and what happens when the final selection costs more or less.

Why online price guides cannot settle your quote

HomeStars’ Canada bathroom guide, updated 21 August 2026, describes an $8,500–$21,000 spending range. Its Toronto guide lists $15,000–$40,000 for a whole bathroom. These are attributed commercial guide figures, not independently established national averages. The pages describe different scopes and do not give one consistent tax-and-permit basis for every number.

Use those differences to ask better questions, not to average the two ranges. Does a figure cover a replacement unit on existing connections, or a new tiled shower assembly? Is the old floor sound? Is the fan duct already suitable? The worked budget below is deliberately separate from these guides and is not generated from their rates.

Ask for the operations behind the finished surfaces

Schluter’s water-management explanation distinguishes the tile surface from the assembly that manages water beneath it. A line reading “waterproofing included” should identify the chosen system and interfaces, rather than merely a product tub. Ask the installer which documentation and checks will demonstrate completion. This is a scope question, not a universal DIY installation method.

Check quantities in the right units

A teaching room measuring 5 × 8 ft has 40 sq ft of floor, approximately 3.72 m². If all four walls are tiled to an assumed height of 8 ft, the gross wall area is 26 × 8 = 208 sq ft. Deduct an assumed 16 sq ft opening: 192 sq ft of wall remains. Including the floor gives 232 sq ft, approximately 21.55 m².

An illustrative 10% cutting allowance gives 255.2 sq ft, or about 23.71 m², before rounding up to complete boxes. These are geometry assumptions, not a prescribed layout, door size or waste percentage. Niches, half-height walls and tile patterns change the quantities. Labour measurement and waterproofing coverage must follow their own agreed scope; neither automatically equals the area of tile purchased.

An Ontario funding example with the assumptions visible

The contractor subtotal is $24,000; adding $3,120 HST gives $27,120. With the separate $2,712 contingency and $800 allowance, funding is $30,632. The permit figure is a placeholder, not Toronto’s fee or a statement that the same permit is required everywhere. Confirm actual requirements and charges. The CRA source supports the Ontario tax rate used for this example, not a uniform Canadian rate.

Resolve hidden-condition decisions before demolition

Agree what happens if opening the room exposes rot, unsuitable backing or a damaged drain. The contractor should record the condition, explain the necessary response and show the proposed scope, cost and time change. Correcting a defect in newly commissioned work is not automatically a chargeable extra.

Health Canada’s moisture and mould guide stresses addressing the source of moisture. New tile over unresolved damage does not establish that the problem is repaired. Stop the affected sequence until the responsible professional has established the appropriate response. Keep a separate allowance for an identified repair once it has been assessed; do not leave it hidden inside “contingency”.

Check approvals and handover in parallel

Permit requirements follow the actual work and location. Toronto’s permit list is useful for a Toronto property, not a rule for every Canadian bathroom. Ontario electrical work also has its own arrangements: verify the Licensed Electrical Contractor responsible for the commissioned work rather than assuming the general contractor’s name covers it.

1. Confirm product models, dimensions and service access before rough-in.
2. Schedule the agreed checks before concealed work is covered.
3. Check the delivered items against the final specifications.
4. At completion, demonstrate normal operation and record specific defects with locations and dates.
5. Keep instructions, inspection records, warranty information and the payment reconciliation.

Record work, products and payments by stage in your chosen register or Reno Pro. An invoice, a delivered vanity and an accepted installation are different events. A clear quote lets you see which event has occurred and what still needs to happen before the bathroom is ready to use.

Sources and scope

• HomeStars — Bathroom renovation costs: Canada
• HomeStars — Bathroom renovation costs: Toronto
• Schluter Systems Canada — Essential water management in tiled showers
• Health Canada — Guide to addressing moisture and mould indoors
• Electrical Safety Authority — About Licensed Electrical Contractors
• Canada Revenue Agency — Charge and collect the GST/HST: which rate to charge
• City of Toronto — When do I need a building permit?

Sources reviewed on 18 October 2026. All amounts are Canadian dollars (CAD). Worked figures and contingency percentages are editorial teaching examples, not market averages, quotations or prescribed allowances. Ontario and Toronto rules are identified where used; check the rules and requirements for your property and jurisdiction.