How the job runs
- 1Plan layoutposition fixtures near existing drains and the stack where possible
- 2Permitapply for the City of Toronto plumbing permit
- 3Cut and trenchcut the slab, trench for drains and connect to the building drain
- 4Rough-ininstall drain, vent and supply piping for each fixture
- 5Inspect and finishpass the rough-in inspection, then set fixtures after walls are done
01Basement bathrooms
Adding a bathroom downstairs ranks near the top of Scarborough renovation calls, particularly in bungalows being converted for family or a second unit. Most of these houses already have a rough-in drain or a floor drain near the stack. If not, the concrete has to be cut.
Everything hinges on elevation: can each new fixture drain downhill to the sewer without help. If the sewer exits the foundation above the level of the new toilet, we install a sewage ejector pump.
| Permit | Required for new drains and fixtures in Toronto |
|---|---|
| Below the sewer | If fixtures sit below the main, an ejector pump may be needed |
| Venting | Every fixture needs proper venting by code |
02Venting
Drains need air to flow. Every fixture needs a vent connected to the stack or a new vent through the roof. Code permits air admittance valves in certain spots only; we design to code.
03Inspection
The city inspector checks the rough-in before it gets covered. We book it and meet the inspector.
04Planning tip
Before you finalise a layout, check where the existing stack and building drain are. Fixtures close to them are cheaper to drain.