Plumbing Permits in Whitby: An Overview
Many plumbing changes need a permit from the Town of Whitby.
- Step-by-step, written from real jobs
- Tools to have ready and safe stopping points
- Where to stop and hand it to a licensed plumber

- Licensed plumbing trade
- Camera before digging
- Written job notes
- Phone-only booking
Summary card
Many plumbing changes need a permit from the Town of Whitby.
Building permits in Whitby are issued by the Town's building division. Plumbing work that typically needs a permit includes adding or moving fixtures, installing backwater valves, adding a basement bathroom, replacing a sewer or water service, and many renovation projects. Swapping a tap or toilet for a similar one usually needs nothing.
Permits protect you. An inspector checks that drains slope correctly, vents are in place and connections are sound before walls close. When you sell, a permit record shows buyers the work was done properly.
The homeowner or the contractor can apply, but whoever applies takes responsibility for booking inspections. Requirements and fees change, so check with the Town of Whitby before starting work.
The procedure
- Check the Town of Whitby website for current permit rules
- Know who applies: owner or contractor
- Book inspections at each stage
- Keep permit records
Tools to have at hand
- Project plan
Do it in this order
- 01
Check if the work needs a permit
- 02
Apply through the Town of Whitby
- 03
Book inspections at the right stages
- 04
Keep the permit and inspection records
- 05
Close the permit when work is done
The Town of Whitby building division handles plumbing permits. Check with them for current rules.
Whitby Plumbing, from the job
Stop and phone a plumber if
- You are unsure if a permit is needed
- The work involves new drains or vents
- You are adding a bathroom
Notes for Whitby
Requirements change; confirm with the Town before starting.
When the desk should take over
Ring the desk us to discuss whether your project needs a permit.