Plumber in Ontario
Ontario homeowners deal with a wide range of plumbing needs, from a leaking faucet or running toilet to burst pipes, sump pump failures, water heater replacement, drain clogs, and full repipes in older homes. Some jobs are quick same-day fixes. Others, like sewer line repairs or rerouting old galvanized or cast iron pipe, involve permits, excavation, and coordination with the municipality. We've listed 174 plumbers serving communities across the province, covering everything from small residential outfits to larger crews that also handle commercial and new-build work.
What to look for before you hire
Confirm the plumber is licensed to work in Ontario (a valid Certificate of Qualification or membership through the Ontario College of Trades successor body) and carries liability insurance. Ask for a written estimate before work starts, not just a verbal number, and find out whether the quote is flat-rate or hourly. For anything involving gas lines, water heaters, or major drain work, ask directly whether they pull permits when required. A plumber who avoids that question is worth skipping.
How we rank them
Our scoring weighs verified customer feedback, how consistently a business responds to and resolves jobs, licensing and insurance signals, and how long they've operated in the area. The full breakdown of what counts and why is on our methodology page. If you want our top picks rather than the full list, check the best plumbers in Ontario guide.
Let us match you with plumber
No cost, no strings attached. Tell us what you need and we'll connect you with suitable plumbers.
All plumber, ranked by score and relevance
We found 300 businesses offering plumber; 299 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is plumber, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
When you submit a quote or contact form through this site, your enquiry may be shared with partner providers who can do the work. We may receive a referral fee for these matches, but our rankings and scores are determined solely by our published scoring method and are never influenced by referral fees.
Common questions about plumber
- How much does a plumber cost in Ontario?
- Most residential plumbers charge somewhere between $90 and $150 an hour, with many shops setting a minimum service call fee of $100 to $200 that covers the first hour. Simple jobs like unclogging a drain or fixing a running toilet might land in the $150 to $350 range. Bigger jobs like water heater replacement typically run $1,200 to $2,500 including the unit, and full repipes or sewer line repairs can reach into the thousands depending on access and permits.
- How often should plumbing be inspected or serviced?
- A general check every 1 to 2 years is reasonable for most homes, especially older ones with original supply lines or a water heater over 8 years old. Sump pumps are worth testing every spring before heavy rain season. If you notice slow drains, water pressure changes, or discoloured water, don't wait for a scheduled check, call sooner.
- What should I expect during a first visit from a plumber?
- A reputable plumber will ask about the problem's history, inspect the affected fixture or line, and give you a written quote before starting non-emergency work. For diagnostic visits involving cameras (common for drain or sewer issues), expect an extra charge, but it should be quoted upfront, not added as a surprise on the final bill.
- How can I tell if a plumber did quality work?
- Ask for photos or a walkthrough of what was replaced, especially for hidden work like pipe joints or under-slab repairs. Good work comes with a warranty on both labour and parts, usually stated in writing. If a fix fails again within weeks, a reliable plumber will come back and address it without a second full charge.