Water Heater Replacement and Repair in Kingston and Brockville
Last updated: October 20, 2026
When a water heater fails you have three choices: another storage tank, a tankless unit, or a heat pump water heater. Natural Resources Canada says ENERGY STAR tankless models can save about 30 percent more energy than standard storage tanks, and heat pump models use up to 50 percent less energy than a standard electric water heater. If your heater is rented, check the contract before you replace it. Ontario also limits door-to-door water heater sales and gives you a 10 day cooling-off period. Local plumbers and heating companies that list water heater work are below. We do not publish prices because we could not source reliable local ones.
Which plumbers and heating companies list water heater work?
These are the businesses whose own listings name water heaters or hot water. A listing is not a recommendation, and we have not ranked them. Ask each for a written quote.
Kingston: See listing lists hot water heaters. See listing, See listing and See listing list water heater installation. See the Kingston plumbers page.
Brockville: See listing lists water heater installation, See listing lists water heater installation and repair, and See listing lists water heating. See the Brockville plumbers page.
Gananoque: we do not yet have a Gananoque listing that names water heaters. See listing lists plumbing and heating, so ask when you call.
Should you choose a tank, tankless or heat pump water heater?
Natural Resources Canada describes the options in its guide to residential water heaters (updated June 10, 2025):
- Storage tank: keeps water at a set temperature so hot water is usually ready. An ENERGY STAR gas storage model saves about 9 percent more energy than a standard gas storage model.
- Tankless: heats water as it flows through, with no tank, which can save space. ENERGY STAR tankless models can save about 30 percent more energy than standard storage tanks. NRCan notes they can struggle to supply several hot water uses at once, such as multiple showers.
- Heat pump: moves heat from the surrounding air into the tank. ENERGY STAR models use up to 50 percent less energy, on average, than a standard electric water heater. NRCan says they can be very cost effective in mild climates.
NRCan advises sizing the unit to your household's hot water needs and asking a plumber to help estimate them. A more efficient model can cost more up front and pay back through lower energy costs. It also says to hire a licensed professional to install the new unit.
Should you repair or replace a water heater?
NRCan does not give a lifespan in years, so check the manufacturer's date on the tank's label and your warranty. If the unit is leaking from the tank, ask the plumber whether a repair is possible before agreeing to one. Get the repair and replacement quotes in writing and compare them.
What are the rules on rental water heaters in Ontario?
Consumer Protection Ontario lists water heaters among the products that generally cannot be sold at your home unless you start the transaction. The Province says you have a 10 day cooling-off period, starting when you receive a written copy of the agreement, to cancel without giving a reason. If you asked for the installation before the 10 days ended, you may still owe costs such as rental payments that are due. See the Province's page on door-to-door sales and home service contracts (updated June 19, 2026).
Before you replace a rented heater, find your rental contract and ask the supplier what ending it will cost. If you are buying a home, check whether a rental water heater comes with it.
Frequently asked questions
Who does water heater replacement in Kingston?
Donaldson Plumbing & Heating, Leak Free Plumbing, Pritchard's Plumbing & Heating and Universal Plumbing & Sewer Services list water heater work in our directory.
Who does water heater replacement in Brockville?
Jensen Plumbing & Heating, Petersen Mechanical and Ron Ball Refrigeration list water heater or water heating work in our directory.
Is a tankless water heater worth it?
Natural Resources Canada says ENERGY STAR tankless models can save about 30 percent more energy than standard storage tanks, but they can struggle with several hot water uses at once. Ask a plumber to size one for your household.
Can I cancel a water heater rental contract in Ontario?
You have a 10 day cooling-off period from receiving a written copy of a new agreement. You may still owe rental payments that are due if you asked for installation before the 10 days ended. Check the Province's door-to-door sales page.