Toronto's plumbing work covers everything from a dripping faucet in a Leslieville semi to a full stack replacement in a North York highrise. This category lists 102 businesses across the city handling drain cleaning, water heater installs and repairs, leak detection, backwater valve installation, fixture replacement, sump pumps, and the emergency calls that come in at 11pm when a pipe lets go. Many older Toronto homes still have galvanized or cast iron piping, and basements below the water table make backflow prevention and sump pump maintenance a bigger deal here than in newer suburban builds.
When you're choosing a plumber, check that they hold a valid Ontario plumbing license (or work under one), carry liability insurance, and give you a written estimate before starting. Ask whether the quote is flat-rate or hourly, whether they pull permits when required (the City of Toronto requires permits for most drain and water service work), and whether the warranty covers both parts and labour. A plumber who explains the problem in plain terms and shows you the old part is usually a better bet than one who just quotes a number and starts cutting into drywall.
Our scoring weighs review consistency, responsiveness, and how a business handles complaints, not just star averages. For a shortlist built from that scoring, see the best plumbers in Toronto guide, and read our methodology for how we rank businesses in this category.
