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Tankless water heaters in Kitchener-Waterloo

Installation of tankless water heaters, which heat water on demand instead of keeping a tank of it hot all day.

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Tankless water heaters for homes across Kitchener-Waterloo

A tankless water heater, sometimes called an on-demand heater, warms water only when a tap opens. It takes up a fraction of the space of a tank and supplies hot water continuously, as long as the demand stays within what the unit is rated for.

Getting the size right matters more than with a tank. A unit that is too small for your household runs cooler when two showers and the dishwasher run at once, so we work out how many fixtures you use at the same time before recommending one. Most gas tankless units also need their own venting and a properly sized gas supply, which is part of planning the job.

Signs you need tankless water heaters

  • Your tank water heater is near the end of its life and you want the floor space back
  • Your household regularly runs out of hot water
  • You are finishing the basement and want to use the space where the tank sits
  • You want hot water that keeps going through long showers and back-to-back baths

How the job works

  1. Size the unit

    We count the fixtures you use at the same time and allow for the temperature of the incoming water, which is colder in winter and changes how much the unit has to heat.

  2. Plan venting and supply

    We confirm where the unit will mount, how it will vent outside and whether the existing gas or electrical supply is large enough.

  3. Install and connect

    We mount the unit, connect the water lines and add isolation valves, which let the unit be shut off and flushed without draining the house plumbing.

  4. Test and explain upkeep

    We run several fixtures at once to confirm the temperature holds, then show you how the unit is maintained.

Common questions

Does a tankless water heater need maintenance?

Yes. Minerals in hard water build up inside the heat exchanger, so most manufacturers recommend flushing the unit regularly, often once a year where the water is hard.

How long do tankless water heaters last?

Many are designed to last around 20 years with regular maintenance, which is longer than a typical tank.

Will I get instant hot water at the tap?

Not quite. The water still has to travel from the heater to the tap, so the wait is about the same as with a tank unless a recirculation system is added.

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Where we do tankless water heaters

Based in Kitchener, working across Waterloo, Cambridge, Guelph and Stratford.