A burst pipe, a flooding basement, a water heater that dies on a Sunday night, none of these wait for business hours. Emergency plumbing covers any job that needs a same-day or overnight response: sewer backups, frozen or split pipes, gas line leaks, failed sump pumps, and main water shutoff issues. In Toronto, this list of 101 businesses ranges from small owner-operated outfits who answer their own phone at 2am to larger crews with dispatched trucks and 24/7 call centers.
The gap between a good emergency call and a bad one usually comes down to a few things: how fast someone actually shows up (not just how fast they answer the phone), whether they give you a real price range before starting work, and whether they're licensed to touch gas lines or do the specific repair you need. Emergency rates are almost always higher than daytime rates, so ask upfront what the after-hours callout fee is and whether it's applied to the final bill. A plumber who dodges that question is a red flag.
Because urgency makes it hard to shop around carefully, we built a ranked guide to Toronto's best plumbers that weighs response speed, licensing, and how consistently a company follows through on quoted prices, so you can find someone reliable without doing the research yourself while water is on your floor. Our scoring method is laid out in full on the methodology page if you want to see how we weigh each factor.