Water Heater Replacement in Markham
If your hot water tank is leaking, rumbling or just not keeping up, we do water heater replacement in Markham the same or next day, and the tank is yours, not a rental. You get a written price for the tank, the venting and the haul-away before we start, and gas work is done by TSSA-certified technicians.
Open 24 hours, 7 days a week
Gas 40-50 gal conventional vent: $1,900 to $3,200 installed. Power vent: $2,600 to $4,200. Electric: $1,500 to $2,600. Tankless: from $3,800. Old tank removed. Same or next day in Markham for most standard tanks.
placeholder imageSigns your tank is done
Water on the floor or in the drain pan. Rust-coloured hot water. Rumbling or popping as it heats, which is sediment boiling under the water. Hot water that runs out faster than it used to. A tank past 12 years old with any of these is a replacement, not a repair. A tank under 8 years old with no hot water is usually a part: a thermocouple, a gas valve, an element or a thermostat. We will tell you which before you spend tank money.
| Situation | What is included | Typical range |
|---|---|---|
| Gas tank, 40-50 gal, conventional vent | Tank, expansion tank, shut-offs, venting, removal and disposal | $1,900 to $3,200 |
| Gas tank, power vent | As above, with PVC power venting | $2,600 to $4,200 |
| Electric tank, 40-50 gal | Tank, connections, removal and disposal | $1,500 to $2,600 |
| Tankless, like-for-like | Unit and venting; gas line upsizing quoted separately if needed | $3,800 to $6,500 |
| Tank to tankless conversion | Venting, gas line and condensate work vary by house | Quoted on site |
Prices before HST. Last checked: CONFIRM: month and year the prices were last checked, e.g. October 2026.
placeholder imageReplacement, step by step
We confirm the size and venting your house needs, then quote the whole job in writing. On the day, we drain and remove the old tank, set the new one, connect the water and the gas or power, install a thermal expansion tank where the system needs one, set and check the venting, and test for leaks and safe combustion. The old tank leaves with us.
Gas tanks and tankless units are installed by TSSA-certified gas technicians. In Ontario, the company must also be a TSSA-registered contractor; TSSA fined a company director $6,000 in 2023 for sending an uncertified worker to install a gas water heater (TSSA). Ask anyone who quotes you whether the person showing up holds a gas ticket.
Renting vs owning in Markham
Many Markham homes still have a rental tank from the builder or a door-knocker years ago. A rental bundles the tank with service, which some people want. It also keeps billing long after the tank has paid for itself. If you are thinking about getting out of a rental, ask the provider for the exact buyout or removal terms in writing, then compare it with an installed price from us. Since June 6, 2024, new rental contracts cannot put a Notice of Security Interest on your title (Ontario.ca).
Hard water and tank life
Markham's water measures about 126 mg/L of hardness, roughly 7.4 grains per gallon (York Region). That scale settles in the bottom of a tank and coats tankless heat exchangers. Flushing the tank once a year helps. In Stouffville, where the water runs about 18.6 grains per gallon, a water softener noticeably extends tank life.
Common questions
How long does a hot water tank last?
Most tank water heaters last roughly 10 to 15 years. Check the date code on the label. A tank that old with rust at the fittings or water in the drain pan is living on borrowed time.
Should I rent or buy?
Do the math with your own bill. One large provider lists a 40 gallon conventional tank at about $26 a month, every month, for as long as you keep it. A purchased tank is a one-time cost. If you rent now, ask your provider for the buyout or removal figure in writing before you decide; every contract is different.
Can a rental company put a lien on my house for the tank?
Not anymore for new contracts. Ontario's Homeowner Protection Act banned Notices of Security Interest on title for consumer goods like water heaters as of June 6, 2024, and existing ones are deemed expired. Removing an old notice from title is a lawyer's job.
Is tankless worth it in Markham?
Sometimes. It makes sense for big households that run out of hot water, or when the tank sits where the venting is easy. It costs more up front, and Markham water is hard enough that a tankless unit needs regular descaling. If a tank is the better buy for your house, we will say so.
Do I need a permit?
Gas appliance work must be done by TSSA-certified technicians working for a TSSA-registered contractor. We handle the venting and gas requirements as part of the job.
Who installs it?
CONFIRM: e.g. Licensed plumbers (Ontario 306A Certificate of Qualification); TSSA-registered contractor with G2 gas technicians for gas water heaters. We do not send a helper to connect gas.