Emergency Plumbing in Ontario
Emergency plumbing covers the jobs that can't wait until Monday morning: burst pipes flooding a basement, a sewer backup, a water heater that's failed and left you without hot water, a frozen line about to split, or a gas smell near an appliance. In Ontario, where hard freezes and old cast-iron stacks in pre-war Toronto and Hamilton housing stock are common problems, this category also includes frozen pipe thawing and sump pump failures during spring melt or heavy summer storms. We've listed 127 businesses across the province that offer after-hours or same-day emergency call-outs, from single-operator plumbers in smaller towns to larger crews covering the GTA and Ottawa.
When you're calling someone at 2am with water coming through your ceiling, you don't have time to vet a stranger properly. Look for a licensed plumber (Ontario requires a G3 or equivalent license for gas work, and municipal licensing varies by city), clear confirmation of the emergency call-out fee before they arrive, and 24/7 phone coverage rather than a voicemail that gets returned in the morning. Ask whether the quote includes parts or is labour-only, and whether they carry insurance in case the repair causes further damage.
Our ranking weighs response speed, licensing, transparency on pricing, and how businesses handle complaints, so you can shortlist candidates before you're in a crisis rather than during one. See the full ranked list at /best/plumbers/, and read how we score and verify each listing at /how-we-score/.
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All emergency plumbing, ranked by score and relevance
We found 292 businesses offering emergency plumbing; 290 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is emergency plumbing, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
Enquiries submitted through this site's contact forms may be passed to partner providers who can carry out the work, and the site may receive a referral fee. Rankings and scores are determined only by the site's published method and are not affected by referral fees.
Common questions about emergency plumbing
- How much does emergency plumbing cost in Ontario?
- Expect a call-out fee on top of standard hourly rates, often ranging from $75 to $200 just to have someone show up outside business hours, before parts or repair labour. Overnight, weekend, and holiday call-outs typically cost more than a same-day weekday visit. Always ask for the call-out fee and hourly rate over the phone before booking.
- What counts as a plumbing emergency versus something that can wait?
- Active flooding, sewage backups, no heat in winter due to a failed boiler or frozen pipes, and any gas odor are genuine emergencies. A slow drain, a dripping tap, or a running toilet can usually wait for a scheduled weekday appointment at a lower rate.
- How do I judge whether an emergency plumber is any good?
- Check that they're licensed for the work involved (gas fitting requires a specific license in Ontario), ask how quickly they can actually arrive rather than just quote a time, and see whether they give you a written estimate before starting work. A plumber who won't confirm pricing over the phone is a warning sign.
- How often do homes actually need emergency plumbing?
- Most households go years without a true plumbing emergency, but risk rises with older homes, harsh winter freeze-thaw cycles, and aging water heaters (typically 8-12 years old). Sump pumps and backwater valves reduce the chance of basement flooding during storms, which is one of the more common emergency calls in Ontario.
Guides to choosing emergency plumbing
- Emergency plumbing: what to do first before help arrives
The first steps during a burst pipe, flooding, or sewage backup, and how to keep a bad situation from getting worse while you wait for a plumber.
- Is a plumbing emergency covered by home insurance in Ontario?
What standard Ontario home insurance typically covers after a plumbing emergency, what it usually excludes, and questions worth asking your insurer.