Residential · Hot water tanks and on-demand heaters
Gas tank water heater replacement across Oakville
Gas-fired tanks stand beside the furnace in a big share of Oakville basements.
- Typical stay: half a day
- On the dolly: tank, vent parts, gas fittings, leak detector
- Your part: a clear path from door to heater
- Old tank: hauled away for recycling
- Licensed plumbers · ask for details on the call
- Cause found and explained before work starts
- Oakville & Halton coverage
What this job involves
Gas-fired tanks stand beside the furnace in a big share of Oakville basements. When one starts weeping from the jacket or simply wears out, the swap is routine but full of details worth getting right: venting, the gas connection, expansion control, relief-valve discharge and the water fittings themselves.
How the job goes
- Shut the gas cock and the cold inlet, then siphon the old tank down a hose into the floor grate.
- Detach vent connector, gas line and water lines and wheel the tank out.
- Set the new tank level and join water lines with fresh fittings and dielectric unions where called for.
- Reconnect gas, leak-test every joint, and fit the vent with correct rise.
- Fill, light, confirm the vent is drawing, and set a safe temperature.
Warning signs on your pipes
- Rusty water only from the hot side.
- Moisture seeping from beneath the tank.
- The tank is long past its expected life.
- Rumbling from heavy sediment that flushing won’t cure.
- Corrosion on the gas control or the flue.
From the job notes
Venting is where most of our attention goes.
Venting is where most of our attention goes. Atmospheric tanks rely on the chimney or a B-vent, and if the furnace has gone high-efficiency, the water heater may be left alone on a flue that is now oversized. Power-vent tanks use plastic pipe out a sidewall and need a nearby outlet.
Gas appliance work in Ontario is restricted to certified gas technicians, with installations held to TSSA standards. The old tank goes away with us for recycling.
What comes off the truck
| Tool or part | What it does on the job |
|---|---|
| Drain hose and pump | Empties the old tank so it can be walked up the stairs |
| Thermal relief valve | New on every install, piped down to within inches of the floor |
Questions we hear
Can I move from rented to owned?
Yes. Ask your rental company about buyout terms first, then we install an owned tank.
What size tank?
That depends on bathrooms, people and habits. A few questions on the phone point us to a size.
Related plumbing
- Tankless water heater installationon-demand gas units
- Clogged toilet clearingcloset auger and flange work
- Hidden leak detectionfinding water you cannot see
- The first hour of a basement floodstorms and thaws
- Noisy pipesany time
- Miltonfast-growing town to the north
- Old Oakvilleheritage core by the harbour
- Bronte Creeknewer homes near the provincial park
Not sure which job fits your pipe? Call (365) 517-8536 and describe it.