The Cost of Bathroom Renovation in Ontario: What to Expect and How to Budget
Share
Bathroom Pricing Guide
The Cost of Bathroom Renovation in Ontario: What to Expect and How to Budget
Bathroom renovation quotes in Ontario can range from $5,000 to $50,000 for the same footprint. This guide breaks down what separates each tier, what materials and trades are included at each level, and what your contractor must put in writing before work begins.
$8,000–$20,000
Mid-range bathroom renovation — full refresh, existing layout
$500–$2,500
Typical per-fixture cost range for plumbing rough-in changes
30–60%
ROI on bathroom renovations at resale in Southern Ontario
In Ontario, the most common reason bathroom quotes vary by $15,000 on the same scope is the difference between a surface refresh and structural work. Moving plumbing, replacing subfloor, or addressing moisture damage changes the cost profile entirely. Knowing which scope you have — before quotes go out — is how you get comparable numbers back.
2026 Ontario Bathroom Renovation Costs by Scope
| Renovation Level | Typical Range | What Is Included |
|---|---|---|
| Cosmetic Refresh | $5,000–$10,000 | New fixtures, vanity, toilet, paint. Layout unchanged. |
| Mid-Range Renovation | $10,000–$25,000 | New tile, tub or shower, vanity, lighting. Minor plumbing moves. |
| Full Gut Renovation | $20,000–$40,000 | Complete teardown to studs. New layout, waterproofing, tile, all fixtures. |
| Primary Ensuite Renovation | $25,000–$50,000+ | Large format tile, custom shower, heated floor, freestanding tub. |
| Plumbing Rough-In Only | $2,500–$6,000 | Moving or adding drain and supply lines before finishes. |
| Tile Labour Only (per sq. ft.) | $8–$16/sq. ft. | Installation only. Material cost is separate. |
What Drives Bathroom Renovation Costs
Layout Changes
Moving the toilet, shower, or vanity requires relocating drain and supply lines. Each plumbing move adds $800–$2,500 in rough-in cost plus drywall and tile repair.
Moisture and Subfloor Damage
Rotted subfloor or failed waterproofing discovered during demolition adds $1,500–$5,000+ and delays the project. Most quotes cannot account for this until the room is opened.
Tile Selection
Large-format porcelain tiles require precision levelling and cut time. Mosaic and subway tile are labour-intensive in a different way. Material selection drives tile installation time significantly.
Trades Coordination
A bathroom renovation involves plumbing, electrical, tile, and drywall. Poor coordination adds delays between trades and increases soft costs. Confirm who is managing the schedule.
4 Steps to Budget Your Bathroom Renovation
1
Define scope before getting quotes. Decide whether you are keeping the existing plumbing layout. If you are, say so explicitly. If you are not, confirm which fixtures are moving. This single decision changes the quote by $5,000 or more.
2
Ask about waterproofing specification. Any tiled shower surround requires a waterproofing membrane. Ask the contractor to name the product (Schluter Kerdi, Mapei, RedGard, etc.) and confirm it is included in the quote.
3
Budget 15–20% for unknown conditions. In bathrooms, moisture damage, subfloor rot, and outdated plumbing are common surprises discovered during demolition. A contingency budget avoids the decision pressure of approving expensive change orders mid-job.
4
Confirm permit requirements. Plumbing relocations and electrical work in bathrooms typically require a permit in Ontario municipalities. Ask the contractor whether they will be pulling permits and confirm the work will be inspected.
Contract Link Insight
A bathroom quote that does not specify waterproofing method, subfloor condition, or whether a permit is required is not a complete quote. Those gaps become change orders.
Before You Accept Any Bathroom Renovation Quote
The waterproofing system for any tiled shower is named (product and brand) — not just referenced as waterproofing included.
The quote confirms whether the existing subfloor will be inspected and replaced if damaged, or whether this is excluded.
All permit requirements are addressed in writing — who pulls the permit, and whether inspections are included in the scope.
Tile removal and disposal is explicitly included, or the exclusion is acknowledged and priced separately.
Got a bathroom renovation quote? Let Contract Link review it.
You now know what bathroom renovation should cost in Ontario. If your contractor's number looks high — or too low to be real — Contract Link will check scope completeness, per-unit pricing, payment structure, and what to ask before the deposit goes out. Delivered within 48 hours.
KitchenerWaterlooCambridgeGuelph