Bathroom Renovation 2025-02-20 4 min read

Navigating Permits for Bathroom Renovation in Toronto

When bathroom renovations in Toronto require building permits, how to get them, and what happens without them.

Do You Need a Permit for a Bathroom Renovation in Toronto?

Permit requirements for bathroom renovations in Toronto depend on what work you're doing. Here's a practical guide to when permits are required and how the process works.

When a Permit IS Required

Moving or adding plumbing rough-in (drains, water supply)
Adding a new bathroom where none existed
Relocating electrical beyond replacing like-for-like fixtures
Structural changes (moving walls, enlarging the bathroom)
Adding a bathroom to a basement

When a Permit Is NOT Required

Cosmetic updates — retiling, new vanity, new fixtures in same locations
Replacing a toilet, sink, or tub in the same location
Replacing a light fixture or fan (like-for-like)
Painting and accessories

The Permit Process in Toronto

Bathroom renovation permits in Toronto are submitted through the city's online portal with drawings showing existing and proposed conditions. Processing typically takes 10–20 business days. Inspections are required at rough-in stage before walls are closed. aMaximum Construction manages the entire permit process for clients.

What Happens Without a Permit?

Unpermitted plumbing and electrical work can be flagged during a home inspection at resale, requiring disclosure or remediation. Insurance claims for water damage in areas with unpermitted work may be denied. The permit process exists to protect homeowners — it's always worth doing correctly.

Ready to Get Started?

Contact aMaximum Construction for a free, no-obligation quote. We serve Toronto and the entire GTA.

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Frequently Asked Questions

Common questions about Bathroom services in Toronto.

How much does a bathroom renovation cost in Toronto?

Bathroom renovations in Toronto range from $8,000–$15,000 for a cosmetic refresh to $20,000–$45,000 for a full gut-and-rebuild. High-end projects with custom tile, steam showers, and heated floors can exceed $60,000. We provide detailed written quotes broken down by scope.

How long does a bathroom renovation take in Toronto?

A cosmetic bathroom update in Toronto takes 1–2 weeks. A full renovation with plumbing and tile work takes 3–5 weeks. Projects involving moving walls or relocating plumbing can take 6–8 weeks. We provide a clear timeline before work begins.

Do I need a permit for my bathroom renovation in Toronto?

In Toronto, permits are required when you're moving plumbing, adding electrical circuits, or removing walls. Replacing fixtures in the same location, new tile, or a vanity swap typically don't require permits. We pull all required permits and coordinate inspections.

Can you move the toilet or shower to a different location?

Yes, but relocating plumbing is the biggest cost driver in bathroom renovations. Moving a toilet or shower requires breaking the concrete floor (in basements) or rerouting drain lines — adding $3,000–$10,000 to the project. We advise on cost-effective alternatives where possible.

What tile is best for bathroom floors and shower walls?

Porcelain tile is the most durable and water-resistant choice for both floors and shower walls in Toronto homes. Large-format tiles (24×24") make small bathrooms look bigger. Natural stone is beautiful but requires sealing and more maintenance.

Do you handle electrical and plumbing in bathroom renovations?

Yes. We coordinate all trades including licensed electricians and plumbers as part of our full-service renovation approach in Toronto. You deal with one contractor — we handle the entire scope and scheduling.

What is the best ventilation solution for a bathroom?

Ontario Building Code requires mechanical ventilation in all bathrooms without operable windows. We install Energy Star–rated exhaust fans sized to the room's CFM requirements. Proper ventilation prevents mould, protects drywall, and extends the life of your finishes.

Can you add a bathroom to my basement?

Yes. Basement bathroom additions in Toronto typically require breaking the concrete floor to tie into the drain system (or installing a sewage ejector pump). Costs range from $8,000–$20,000 depending on complexity. We handle permits, rough-in plumbing, and all finishes.

What's included in a full bathroom renovation?

Our full bathroom renovations in Toronto include: demolition, waterproofing, plumbing rough-in, electrical, tile installation, vanity and fixture installation, glass shower enclosures, accessories, painting, and final inspection. We handle everything from start to finish.

How do I choose between a walk-in shower and a bathtub?

If you have only one bathroom, keep the tub — it helps with resale value and is needed for bathing children. If you have a second bathroom, converting the tub to a walk-in shower is a popular upgrade in Toronto that adds usable space and a modern look.