The short answer
In most cases, yes. In Ontario, building permits are issued by your local municipality under the Ontario Building Code, and a tub-to-shower conversion usually involves the kind of plumbing and wall work that a permit is meant to cover. Whether your specific project needs one depends on what is actually changing, so the only authoritative answer comes from the City of Peterborough Building Division or the building department of your own municipality.
This guide is general information to help you ask the right questions. It is not legal advice and it is not a substitute for confirming with your municipality. If you hire Aksel Tile & Bath, we handle the permit application and inspections for you as part of the job, so you do not need to work through any of this alone.
Who issues permits in Peterborough, Ontario and the Kawarthas
Building permits are municipal. If your home is inside the City of Peterborough, the City of Peterborough Building Division is the office that reviews and issues them. If you live in one of the surrounding townships or towns, such as Selwyn (Lakefield and Bridgenorth), Cavan Monaghan (Millbrook), Otonabee-South Monaghan (Keene), Asphodel-Norwood (Norwood), Havelock-Belmont-Methuen (Havelock), the City of Kawartha Lakes (Lindsay, Bobcaygeon, Omemee), Trent Lakes (Buckhorn) or Trent Hills (Campbellford), the permit comes from that municipality's building department instead.
Requirements, fees and processing times are set by each municipality and can change, so always confirm the current rules with your own building department before relying on anything you read online, including this page.
What usually triggers a permit on a shower conversion
The Ontario Building Code is concerned with safety, structure and plumbing. A shower conversion tends to need a permit when the work goes beyond a cosmetic refresh. Common examples are listed below; if your project involves any of them, assume a permit is likely and ask your municipality to confirm.
- Moving, adding or replacing plumbing supply or drain lines, including relocating the shower drain or changing a tub drain to a shower drain.
- Removing or altering walls, including opening a wall to reframe a shower enclosure or add blocking for grab bars.
- Changing the layout of the bathroom, such as moving the shower to a different wall.
- Structural work to the floor, for example lowering a section of subfloor to create a curbless entry.
- Adding or relocating electrical for lighting, ventilation fans or heated floors (electrical work is also subject to the Electrical Safety Authority, separate from the building permit).
What often does not need a permit
Like-for-like replacements that do not change plumbing locations, structure or layout are frequently treated as maintenance rather than construction. Examples include replacing a shower head or faucet in the same position, retiling existing shower walls without altering framing or waterproofing systems, swapping a vanity in the same spot, or installing acrylic wall panels over an existing, unchanged tub or shower base.
Even so, the line between repair and alteration is drawn by your municipality, not by the contractor or the homeowner. When in doubt, a quick call to the building department settles it before any work starts.
What inspectors typically look at
When a permit is issued for a shower conversion, the municipality schedules inspections at key stages. For a typical bathroom that usually means a rough-in inspection after the plumbing and framing are done but before the walls are closed, and a final inspection once everything is finished and working.
Inspectors are checking that the drain and venting are correct, that supply lines are properly connected and tested, that the waterproofing and framing are sound, and that the finished shower is safe to use. Passing these inspections is a good thing for you: it is independent confirmation that what is behind your tile was done properly.
Why skipping the permit is a bad trade
A permit can feel like paperwork standing between you and your new shower, but unpermitted work carries real risk. If a problem is discovered later, the municipality can require you to open finished walls for inspection or redo the work. Unpermitted renovations can also complicate a home insurance claim and can surface during a home sale when a buyer's lawyer or inspector asks for records.
A permitted job, by contrast, leaves a paper trail that protects you. The plumbing has been inspected, the file is closed, and future buyers can see that the bathroom was renovated properly.
How Aksel Tile & Bath handles permits
When you hire us for a walk-in shower or tub-to-shower conversion in Peterborough, Ontario or the Kawarthas, permits are part of the service. We determine whether your project requires one, prepare and submit the application to your municipality, schedule the inspections and meet the inspector on site. You do not need to visit City Hall or book anything yourself.
Permit timing is set by the municipality, and we build it into the schedule we give you at the quote stage so there are no surprises. If you are comparing quotes, it is worth asking every contractor whether permits and inspections are included; a price that leaves them out is not the same job.
Next steps
If you are planning a tub-to-shower conversion, our tub-to-shower conversion guide walks through the whole process from consultation to final walkthrough, and our walk-in showers page covers the options we build. When you are ready, book a free in-home consultation and we will tell you plainly whether your project needs a permit and what the timeline looks like.
And once more, because it matters: this page is general guidance only. For a definitive answer about your home, contact the City of Peterborough Building Division or your own municipality's building department.