Water Heater Service

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Hot water is something you only notice when it is gone. Plumber On Demand services, repairs and replaces water heaters across Ontario, for homes, condos and small businesses, with replacements sized to how much hot water you actually use.

Water heater services

• Diagnosis and repair for no hot water, not enough hot water or temperature problems
• Leak repair at valves, fittings and connections
• Tank flushing and maintenance to remove sediment and extend tank life
• Tankless descaling and service for units in hard water areas
• Replacement and installation of tank and tankless water heaters
• Relief valve and expansion tank work to keep the system safe

Sizing a new water heater

The most common water heater mistake is replacing an old unit with the same size without asking whether it was ever right. We look at how many people use hot water, how many bathrooms and appliances run at the same time, and when your peak demand happens, then recommend a tank size or tankless unit that keeps up.

Tank or tankless?

Tank water heaters cost less up front and are simple to maintain. Tankless units heat water on demand, save space and do not run out, but need correct sizing, venting and regular descaling. We explain the trade-offs so you can choose what fits your budget and your home.

Maintenance that pays off

Sediment build-up shortens the life of a tank and makes it noisy and less efficient. A periodic flush, a relief valve check and an anode inspection can add years of service. For more on home water heater repair, see water heater repair and installation for homes.

Water Heater Service FAQs