2026 Guide

How to Hire a Bathroom Remodeler in Ontario

Bathroom renovations involve plumbing, electrical, waterproofing, tiling, and ventilation — all in a small, moisture-prone space. Mistakes here lead to mould, leaks, and structural damage that can cost thousands to fix. Here is how to hire the right contractor.

717

Bathroom Remodelers

Licensed

15%

WSIB Registered

Hiring Checklist

Check HCRA registration if applicable

If the renovation is part of new home construction, HCRA registration is required. Verify at hcraontario.ca.

Verify liability insurance ($2M+ minimum)

Water damage from a botched bathroom reno can affect multiple floors. Insurance covers the worst-case scenario.

Confirm WSIB for all workers

Bathroom renos involve multiple trades. WSIB clearance protects you from injury liability.

Ask about waterproofing methods

Proper waterproofing behind tile is critical. Ask specifically about membrane systems like Schluter or RedGard.

Get a detailed written contract

Must include fixture specifications, tile selections, layout drawings, ventilation plan, timeline, and payment schedule.

Verify they pull plumbing and electrical permits

Moving plumbing fixtures or adding circuits requires municipal permits. Unpermitted work creates problems when selling.

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Red Flags to Watch For

No waterproofing plan

If they cannot explain their shower waterproofing method, they should not be doing bathroom work. This is the most critical element.

Skips the exhaust fan

Ontario Building Code requires bathroom ventilation. Skipping it leads to mould and moisture damage.

No tile layout plan

Professional tilers plan layouts to avoid thin slivers and ensure symmetry. Winging it results in an amateurish finish.

Quotes without seeing the space

Bathroom plumbing and structural conditions vary greatly. Accurate quotes require a site visit.

Cannot name their plumber or electrician

A bathroom reno requires licensed sub-trades. The contractor should have established relationships with qualified tradespeople.

Questions to Ask Before Hiring

\u201cWhat waterproofing system do you use?\u201d

Good answer: They should name a specific system (Schluter Kerdi, Laticrete Hydro Ban, RedGard) and explain their process.

\u201cWill you pull plumbing and electrical permits?\u201d

Good answer: Yes. Any fixture relocation or new circuits require permits. The cost should be included in the quote.

\u201cHow do you handle ventilation?\u201d

Good answer: They should assess the existing fan, recommend CFM rating for the room size, and ensure proper venting to the exterior.

\u201cWhat is your tile installation process?\u201d

Good answer: Proper substrate preparation, waterproofing membrane, layout planning, large-format tile handling if applicable, and grout sealing.

\u201cWhat warranty do you provide?\u201d

Good answer: Labour warranty of 2+ years, especially on waterproofing. Manufacturer warranties on fixtures, tile, and vanities.

Licensing: Home Construction Regulatory Authority (HCRA)

Bathroom remodeling in existing homes does not require a specific licence, but plumbing and electrical sub-trades must be licensed. If the work is part of new home construction, HCRA registration is required. Always verify insurance and WSIB for any bathroom renovation.

Verify at Home Construction Regulatory Authority (HCRA) \u2192

Frequently Asked Questions

Do bathroom remodelers need a licence in Ontario?

No specific bathroom remodeling licence exists, but the plumber and electrician involved must be licensed. HCRA applies if the work is part of new construction.

How much does a bathroom renovation cost in Ontario?

A standard bathroom renovation costs $15,000–$35,000. High-end or master bathroom renovations can run $40,000–$80,000+.

How long does a bathroom renovation take?

A full bathroom gut renovation takes 3–6 weeks. Cosmetic updates (vanity, fixtures, paint) can be done in 1–2 weeks.

What is the most important thing in a bathroom reno?

Waterproofing. A beautiful bathroom with poor waterproofing will develop mould and structural damage within a few years.

Hiring a Bathroom Remodeler by City

Get city-specific hiring advice:

Toronto Ottawa Mississauga Brampton Hamilton London Markham Vaughan Kitchener Windsor Barrie Oakville Burlington Oshawa Guelph Cambridge Whitby Richmond Hill Ajax Milton

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