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Tank Water Heater Repair

Fast, reliable repair for traditional tank water heaters. We restore your hot water quickly, with same-day service available.

Our technician checks the thermostat, heating elements or burner, anode rod, relief valve, venting, water connections, and signs of corrosion before recommending repair or replacement.

You get a clear explanation of the problem, upfront pricing, and practical guidance on whether the tank still has useful service life or should be replaced.

Request Service

No hot water? Send your details and Real Deal HVAC will call you right back.

Prefer to talk now? Call (647) 280-6626

What's Included

Thermostat Testing

Full diagnostic of your thermostat to ensure accurate temperature control and efficient operation.

Element Replacement

Heating element inspection and replacement to restore full hot water capacity.

Anode Rod Check

Inspection and replacement of the sacrificial anode rod to prevent tank corrosion.

Leak Repair

Locate and fix leaks at fittings, valves, and connections to prevent water damage.

Why Choose Real Deal HVAC

Same-Day Service

Fast response times, with same-day repair available across Mississauga, Oakville, Etobicoke and Burlington.

Licensed & Insured

Fully licensed HVAC technicians with comprehensive insurance for your peace of mind.

Transparent Pricing

Upfront quotes with no hidden fees. 0% financing available on qualifying repairs.

Need Your Water Heater Fixed?

Call us today for fast, reliable tank water heater repair in Mississauga.

Get an Instant Estimate Call Us

Prefer to talk it through? Call (647) 280-6626 — answered 24/7. Licensed and insured, with the price agreed before any work starts.

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Pick a time that works for you. It only takes 60 seconds.

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Frequently asked questions

Straight answers to what people actually ask us. Call (647) 280-6626 any hour if yours is not here.

Why is there no hot water at all?

On a gas tank, usually a pilot or igniter that has gone out, a failed thermocouple or gas control valve, or a tripped safety. If the tank is also leaking, repair is usually off the table and replacement is the answer.

The hot water runs out much faster than it used to. Why?

Commonly sediment build-up on the tank floor, which eats into the volume you can actually heat, or a failing dip tube mixing cold water into the outlet. Both are diagnosable on a visit.

My water heater is leaking. Can it be repaired?

If the leak is at a fitting, a valve or the connections, often yes. If the tank itself has corroded through, no. A leaking tank only gets worse and should be replaced rather than patched.

How long should a tank water heater last?

Typically eight to twelve years, and longer where the water is soft and the anode rod has been replaced along the way. Past that point, spending money on repairs gets harder to justify.

Do you replace rental water heaters?

We can install an owned unit in place of a rental, but the rental agreement is between you and the rental company, so check your buyout and return terms first. Our pricing list publishes installed prices for tank and tankless replacements.

Is a water heater a regulated gas appliance?

A gas-fired one is, yes. Installation and venting fall under the Technical Standards and Safety Authority's rules in Ontario, the same as furnaces and boilers.

Safety and licensing

Gas work in Ontario is regulated. Every gas appliance we touch is handled to the standards set by the province’s safety regulator, and any certificate or licence we hold can be verified through them.

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