Dishwasher Guide
Do You Need a Plumber for Dishwasher Repair?
It's a fair question — a dishwasher is half appliance, half plumbing. Which trade you call depends on where the problem actually is, and getting it right saves a wasted service call.
The short version: plumbing connections are a plumber's domain; the dishwasher's own parts are an appliance technician's.
When it's a plumber's job
- A leak at the water-supply shutoff valve under the sink, or at the supply line itself.
- A blocked or improperly vented sink drain that's backing up into the dishwasher.
- Installing a new shutoff valve or rerouting the drain plumbing.
When it's an appliance technician's job
- The dishwasher won't drain, fill, heat, or finish a cycle.
- Error codes, a dead control panel, or buttons that don't respond.
- Leaks from the door gasket, pump, or internal hoses — inside the appliance.
- A faulty drain pump, water inlet valve, or wash motor.
The overlap
Installing or removing a dishwasher touches both worlds — water supply, drain, and the appliance itself. Many appliance technicians handle the full install; a few jurisdictions want a licensed plumber for the permanent water connection. If you're unsure where the fault sits, an appliance diagnosis will tell you quickly whether you actually need a plumber.
Rather have a pro handle it?
Our technicians repair this across Toronto and the GTA — same-day in many cases, with clear pricing and a warranty on the work.