Get Service(613) 294-0864

Water Heater & Hot Water Tank Replacement in Ottawa

No hot water, or a tank that's leaking? We'll tell you whether to repair or replace, size the new one honestly, give you a flat price before we start, and take the old tank away.

Get Service(613) 294-0864
Hose and container set under a hot water tank drain valve during a water heater service

Repair or replace?

Some water heater problems are worth repairing: a failed element, thermostat, igniter or thermocouple, or a sticking valve. Others mean it's time for a new tank:

  • The tank itself is leaking from the bottom or the seams
  • It's 10 to 15 years old and needs a significant repair
  • Rusty water from the hot tap only
  • Rumbling or popping from heavy sediment the tank can't recover from

We'll tell you which one you're looking at, and won't push a replacement when a part will do.

Choosing a new water heater

Type Best for Good to know
Gas tank Most Ottawa homes with a gas line Lower running cost than electric. Venting has to suit your house.
Electric tank Homes and condos without gas No venting needed, so it fits almost anywhere
Tankless (on-demand) Families that run out of hot water, or need basement space back Endless hot water and wall-mounted. Higher upfront cost, and gas line and venting changes may be needed.

We size it on how many people live in the house and how you use hot water, not on the biggest unit we can sell.

Wall-mounted expansion tank marked 12 PSI above copper pipework and a yellow-handled valve.
Expansion tank and copper supply piping beside a water heater. Correct pressure control helps a new tank last.

Renting your tank now?

Many Ottawa homeowners pay a monthly rental on a tank they could have owned years ago. We'll explain how ending a rental usually works, install a tank you own, and walk you through the numbers so you can decide.

No hot water?

Call and tell us what you have. We'll give you a straight answer on repair versus replacement.

Get Service(613) 294-0864

What's included

  • Removal and disposal of the old tank
  • New tank, connectors, valves and venting to code
  • Expansion tank and pressure checks where needed
  • A flat, written price before we start
  • 2-year workmanship warranty
Copper water lines and a small white expansion tank mounted on framing against masonry.
New copper supply lines with a small expansion tank

From our water heater and supply jobs

Insulated wall pipework with red handwheel valves and a meter assembly.
Insulated pipework and meter assembly
Metal inline assembly with small test fittings connected to copper piping; exact device type unverified.
Inline valve assembly on copper piping
Open cabinet beneath a counter reveals copper pipework, fittings and a metal sink drain.
Under-counter copper pipework overview
Copper pipework and inline valve assembly beneath a sink beside a chrome drain trap.
Under-counter valve assembly closeup
Bright red bolted repair clamp fitted around an exposed metal pipe outdoors.
Red repair clamp on outdoor metal pipe
Small-diameter pipe curves across the bottom of an earthen excavation beneath exposed roots.
Exposed small pipe in deep earth trench
Deep excavation beside a brick house entrance with standing muddy water at the bottom.
Water-filled excavation beside brick entry
Small copper-coloured pipe emerges into muddy standing water in an excavation.
Small pipe crossing muddy excavation
Copper loop, meter-style component and valves mounted on a rough masonry basement wall.
Copper meter assembly on masonry wall
Wider view of copper meter-style assembly on a masonry wall beside a large tank.
Basement meter pipework wider view

See all water lines photos

What customers say about this work

★★★★★
“Michael did a fantastic job today. I had an emergency water heater situation and it was resolved quickly. He figured he would not be able to complete the job today, but as luck would have it, he was able to get his hands on a new water heater much sooner than expected. By 3:30pm, everything was done.”
Vincent L.Google review, 2024
★★★★★
“We are very pleased with the service we received from the Irish Plumber. We had a hot water tank suddenly stop working and after having multiple people from other companies diagnose (but not fix the issue), we started reaching out to others.”
Daniel G.Google review, 2026
★★★★★
“The young man who came to replace the tap and the hot water tank on two separate calls was quick, kind and happy to explain what was needed or how things worked. He cleaned up after his work and should get extra pay for hauling my old water tank (still full of water) out of the building!”
Steph P.Google review, 2020

Read more reviews

Questions Ottawa homeowners ask us

How long does a water heater last?
Typically 10 to 15 years for a tank, and longer for a well-maintained tankless unit. Hard water and no maintenance shorten that.
Should I repair or replace my water heater?
If the tank is leaking, replace it. If it's under about 10 years old and a part has failed, a repair usually makes sense. We'll tell you honestly which one you're looking at.
Is tankless worth it in Ottawa?
For larger households that run out of hot water, or homes that need basement space, often yes. The upfront cost is higher and some homes need gas and venting changes. We'll compare both on your house.
Can you replace a rental water heater?
Yes. We'll explain how ending a rental usually works, install a tank you own and take the old one out.
What size water heater do I need?
It depends on how many people live in the house and your peak use. Most Ottawa homes use a 40 or 50 gallon tank. We'll recommend the size that fits.

Get your hot water back without the guesswork

Repair or replace, sized honestly, with a flat written price and the old tank taken away.

Get Service(613) 294-0864
Get Service(613) 294-0864