Hot water tanks in Calgary

Hot water tank replacement and repair in Calgary

No hot water, a puddle at the base of the tank, or rusty water from the taps? ER Plumbing & Heating repairs and replaces gas and electric hot water tanks and installs tankless water heaters across Calgary. Most standard tank replacements take 2 to 3 hours, and because we carry common tank sizes on the truck, we can often finish the same day you call.

Tank leaking right now? Shut off the cold water supply to the tank, then read hot water tank leaks: what you can do or call our 24/7 emergency plumber line.

Warning signs

Signs your hot water tank is failing

A hot water tank rarely fails without warning. If you notice any of these, it is worth having the tank checked before it lets go.

No hot water, or not enough

A failed pilot or igniter, a bad thermostat or element, or sediment filling the bottom of the tank can all cut your supply of hot water.

Water around the base

A drip from a valve or fitting can often be repaired. Water coming from the tank body itself usually means the tank has failed and needs replacing.

Rusty or discoloured water

Rust-coloured hot water, while the cold water runs clear, can point to corrosion inside the tank.

Popping or rumbling

Sediment from Calgary’s hard water settles on the bottom of the tank and crackles as it heats, which also wastes energy.

Temperature swings

Water that turns lukewarm halfway through a shower can mean a failing thermostat, a dip tube problem, or a tank that is too small for the household.

Pilot will not stay lit

On gas tanks this is often a thermocouple, gas control, or venting issue. It is a common repair, but it needs to be diagnosed properly.

Repair or replace

Hot water tank repair or replacement?

Not every problem means a new tank. We tell you which repairs are worth doing and when the tank has reached the end of its life.

Repairs we handle

  • Pilots, igniters, thermocouples, and gas control valves
  • Elements and thermostats on electric tanks
  • Leaking relief valves, drain valves, and fittings
  • Venting and draft problems on gas tanks
  • Tankless water heater faults and descaling

When replacement makes sense

  • The tank body itself is leaking
  • The tank is 10 years old or more and needs a major repair
  • Hot water runs out noticeably faster than it used to
  • You want more capacity, or you are ready to switch to tankless

Most tanks last about 8 to 12 years. When we replace one, we size the new tank to your household, connect the gas or electrical supply and venting to code, fit the required safety components, and pull the permit the replacement needs.

Tank or tankless

Tank vs. tankless water heaters for Calgary homes

Conventional hot water tank

  • Lower upfront cost and a straightforward swap
  • Stores a supply of hot water ready to use
  • Most standard replacements take 2 to 3 hours
  • Can run out during heavy use, such as back-to-back showers

Tankless water heater

  • Heats water on demand, so it does not run out the same way
  • Wall-mounted, which frees up floor space in the mechanical room
  • Usually needs gas line and venting changes
  • Most installations take 3 to 5 hours
  • Benefits from periodic descaling in hard water

See what a proper install looks like in our write-up on tankless water heater and furnace installation in Calgary.

Why ER Plumbing & Heating

Why Calgary homeowners call us for hot water tanks

Often same-day replacement

We carry common tank sizes on the truck, so many replacements are finished the same day you call.

Licensed plumbers and gas fitters

Gas connections and venting are handled by licensed tradespeople, and we pull permits when the work requires them.

24/7 for leaks and no hot water

A real technician answers around the clock. A leaking tank is worth a call at any hour, before the water reaches finished areas.

Straight advice on repair or replace

If a repair will give your tank more good years, we will tell you. If it will not, we will tell you that too, with the reasons.

Licensed & insured

Hot water tank service across Calgary for 20+ years

We work on gas and electric tanks and tankless units for homes, multi-unit properties, and light commercial spaces across Calgary and nearby communities.

Gas and electric tanks Tankless water heaters Permits pulled when required Liability and WCB coverage

FAQ

Hot water tank FAQs

How long does a hot water tank replacement take?

Most standard tank replacements take 2 to 3 hours from arrival to hot water. Tankless installations usually take 3 to 5 hours.

How long does a hot water tank last?

Most tanks last about 8 to 12 years. Hard water, sediment build-up, and skipped maintenance can shorten that.

How much does hot water tank replacement cost in Calgary?

It depends on the tank size, gas or electric, the venting, and any code updates the install needs, so we quote once we know your setup. Emergency and after-hours service may be priced differently from standard scheduled work, so ask about the rate when you call. Your technician will explain what the repair involves and what it will cost.

My tank is leaking. What should I do?

Close the cold water supply valve on top of the tank. For a gas tank, turn the gas control to off; for an electric tank, switch off its breaker. Then call 587-777-3164.

Should I switch to a tankless water heater?

Tankless suits households that run out of hot water or want floor space back, but it costs more to install and usually needs gas and venting changes. We can walk you through both options for your home.

Do you service tankless water heaters?

Yes. We repair, descale, and replace tankless units as well as conventional tanks.

Contact

Need a hot water tank replaced in Calgary?

Call 587-777-3164 or send the form below. If you know the tank size and whether it is gas or electric, include it.


What happens next

Step 1

Tell us what is happening

No hot water, a leak, noise, or rusty water. Let us know how old the tank is if you can find the label.

Step 2

We confirm the right tank

We check the size, fuel type, and venting so the new tank fits your home and household.

Step 3

Install and test

We install the new tank and test the connections, relief valve, and venting before we leave.

Request service