Bathroom Renovation Contractors in Toronto & the GTA
Planning a bathroom renovation Toronto or GTA-wide? A bathroom is the hardest-working room in the house, and the one where shortcuts show up fastest — as leaks, mould, and tile that lifts within a year. GMC Construction Inc. builds bathroom renovations across Toronto and the Greater Toronto Area — full renovations, ensuites, powder rooms and condo bathrooms — with proper waterproofing, a fixed-price quote, and a written workmanship warranty.
What makes a bathroom last isn’t the finishes you see — it’s the waterproofing and drainage you don’t. With 15+ years across the GTA and an owner who holds a Master’s degree in Structural Engineering, we get the parts behind the wall right, so the beautiful part stays beautiful for decades instead of failing quietly.
Our Bathroom Renovation Services
Full Bathroom Renovations
A complete rebuild — new layout, plumbing, waterproofing, tile, vanity and fixtures, taken from demolition to a finished, watertight room.
Ensuite & Master Baths
Spa-style ensuites with double vanities, freestanding tubs, glass showers and heated floors — the private retreat off the primary bedroom.
Custom Showers & Tiling
Curbless and walk-in showers, niches, benches and full-height tile — built on a properly waterproofed base, not just a pretty surface.
Powder Rooms
Small rooms with big impact — the half-bath guests actually see, updated with a statement vanity, lighting and finishes on a tighter budget.
Condo Bathrooms
Renovations that navigate board approvals, elevator bookings and restricted work hours — the building’s rules managed for you, start to finish.
Waterproofing & Drainage
The part behind the tile — industry-proven waterproofing systems and proper drainage that protect the subfloor, walls and rooms below for decades.
How Much Does a Bathroom Renovation Cost in Toronto?
Bathroom cost is driven by size, the finishes you choose, and whether the plumbing layout moves. Most GTA projects fall into these tiers:
Powder Room
$6,000 – $12,000
Cosmetic Refresh
$12,000 – $16,000
MOST COMMON
Full Renovation
$16,000 – $28,000
Ensuite / Layout Change
$28,000 – $40,000
Luxury Ensuite
$50,000+
These reflect turnkey bathroom renovations in the GTA for 2026, including demolition, plumbing, waterproofing, tile, fixtures, finishes and project management. Condo bathrooms typically run 10–20% higher due to board approvals and restricted work hours.
Key factors that affect bathroom renovation costs:
- Moving the plumbing — keeping the toilet, sink and shower where they are keeps costs down; relocating them is the single biggest cost driver.
- Tile choice and coverage — full-height tile, large-format slabs and intricate patterns cost more in both material and labour than a standard surround.
- Fixtures and finishes — a freestanding tub, frameless glass, heated floors and a custom vanity move a project up a tier quickly.
- Waterproofing and prep — proper waterproofing and any hidden repairs (rot, old plumbing) aren’t optional, and they’re what makes the renovation last.
- Condo requirements — board approvals, elevator bookings and restricted hours add time and cost to condo bathroom projects.
Because bathrooms vary so widely, we assess the room and your plumbing before quoting. You get a fixed-price, itemized proposal after a free in-home consultation — no vague allowances.
Why Choose GMC for Your Bathroom Renovation?
Waterproofing done right
Waterproofing is the part you never see but can’t skip. We use industry-proven systems on every project — it’s the main reason a GMC bathroom lasts for decades instead of failing quietly behind the tile.
Structure and drainage expertise
Led by an owner who holds a Master’s degree in Structural Engineering, we understand structure, drainage and moisture protection — which is what actually determines how long a bathroom lasts.
Fixed-price quotes
You get a detailed, itemized fixed price after a free in-home consultation — the real number, not a low estimate that grows through change orders once the walls are open.
A clear week-by-week schedule
You get a week-by-week timeline before work begins, so you know exactly what’s happening and when — and when you’ll have your bathroom back.
Condo-savvy
We handle board approvals, elevator bookings and restricted work hours for condo bathrooms across downtown Toronto, Etobicoke and the GTA — the building’s rules managed so you don’t have to.
Licensed, insured, warrantied
Fully licensed and insured with WSIB coverage, 500+ completed projects and a 5.0-star rating from 84 reviews — plus a written workmanship warranty on every bathroom.
What Makes a Bathroom Last
Four things separate a bathroom that still looks new in ten years from one that needs redoing in three. All four happen before the tile goes on.
Waterproofing
A proper waterproofing membrane behind the tile and under the shower base is what protects the subfloor and the rooms below. Skip it and the failure is invisible until it’s expensive.
Proper Drainage & Slope
Shower floors need the right slope to the drain, and drains need to be sized and set correctly. Done wrong, water pools, tile stains, and grout fails early.
Ventilation
A correctly sized, properly vented exhaust fan pulls moisture out before it becomes mould. It’s a small item that decides whether the finishes stay clean.
Permits Where Needed
Moving plumbing or adding electrical circuits usually needs a permit. As a licensed contractor we handle that process, so the work is done to code and passes inspection.
Bathroom Projects We Take On
Most bathroom projects in the GTA fall into one of three shapes. Here’s what each typically involves:
Refresh
New tile, vanity, fixtures and paint in the same layout — a fast, lower-cost update that keeps the plumbing where it is and avoids permits.
Full Renovation
A complete gut and rebuild with new waterproofing, tile, fixtures and finishes — the most common project, and where doing the hidden work right matters most.
Ensuite / Layout Change
Moving plumbing to change the layout, or building a spa-style ensuite with a freestanding tub, glass shower and heated floors — the most involved scope.
How Long Does a Bathroom Renovation Take?
Most bathroom renovations take 3 to 6 weeks, depending on scope and whether permits are required. A cosmetic refresh in the same layout is faster; a full gut renovation with moved plumbing takes longer. We give you a week-by-week schedule before work begins so you know exactly what to expect and when you’ll have your bathroom back.
Serving Toronto & the Greater Toronto Area
GMC Construction Inc. builds bathroom renovations throughout Toronto and the GTA — condos downtown, houses in the inner suburbs, and homes across the surrounding municipalities. We know the buildings, the permit process, and how each municipality handles bathroom renovations.
Let’s Build Your Bathroom
Whether it’s a powder-room refresh, a full renovation, or a spa-style ensuite, we’re ready to help. Call us at 647-450-4466 or request your free, fixed-price quote — and we’ll walk the room with you and get the waterproofing right from the start.
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