The basics
A basement unit bolts a second kitchen sink, a second toilet and usually a washer drain onto a house that was designed for one household. That means more water use, more drainage and more hot water demand on shared systems. The City of Brampton has a registration process for second units, and building permits apply to new plumbing work. Check the City's current requirements before starting.
- Separate shut-off valves for each unit
- Enough hot water for two households
- Drains sized and vented for added fixtures
- Backflow and flood protection for the lowest floor
Step by step
- Map the existing plumbing. Find the main drain, stack, rough-ins and water heater.
- Plan fixture locations. Keep the kitchen and bathroom close to existing drains where possible.
- Size the water heater. Consider a larger tank or a tankless unit.
- Add shut-offs. Give each unit its own valve so repairs do not cut water to both.
- Protect the basement. A backwater valve and a sump that actually runs are sensible with people living below grade.
- Pull permits. Inspections protect you, your tenant and your insurance.
Time to bring in the shop
Call us when planning a new suite, when the existing one has repeated drain problems, or when hot water runs out regularly. We handle the rough-in, fixtures and water heater sizing, and we can work alongside your contractor and permit drawings.
For landlords
Show your tenant where the shut-offs are and what to do in a leak. A labelled valve and a phone number on the utility room door save time in an emergency.
Asked at the shop counter
Do I need a permit for basement apartment plumbing?
Yes, new plumbing work generally requires a permit. Check with the City of Brampton.
Can two units share one water heater?
Yes, provided it was chosen with both households in mind. Plenty of owners step up a size.
Should each unit have its own shut-off?
Yes. It makes repairs easier and fairer.
Questions about this job? Call (365) 413-9125 and talk to a plumber.