What a water heater costs to buy and install
Installed, including labour. The two columns are two different contractor markets, and the gap between them is real.
| Type | Outside the GTA | Toronto and GTA |
|---|---|---|
| Gas tank, 40–50 gallon | $2,100–$3,100 | $3,200–$5,500 |
| Electric tank, 40–50 gallon | $1,900–$2,200 | $2,800–$4,500 |
| Tankless gas | $3,900–$5,500 | $5,200–$8,500 |
| Heat pump (hybrid) | $5,800–$7,500 | $5,000–$7,800 |
Add-ons that turn up on real invoices:
| Item | Typical CAD | When |
|---|---|---|
| Removal and disposal of the old unit | $100–$250 | Always |
| Venting upgrade | $500–$1,000 | Moving from conventional to power or direct vent |
| Expansion tank | $150–$350 | Closed systems, often required by code |
| Permits, plumbing / gas / electrical | $150–$400 each | Varies by municipality — confirm locally |
| Panel upgrade for electric tankless | $1,200–$2,500 | Electric tankless draws heavily |
| After-hours emergency installation | 50–100% premium | Tank failed on a Saturday night |
Heat pump water heaters have a physical constraint people discover late: they need a reasonable volume of basement air to draw from, commonly cited as at least 450 square feet, and they blow cold air into that space while they work. In a small mechanical room that is a problem.
A heat pump water heater qualifies for a $500 rebate under the Home Renovation Savings Program. Unlike the heat pump rebates for space heating, this one sits in the stream that requires a home energy assessment; the assessment costs about $600 and is fully rebated on successful completion of the work. Confirm the current requirement on the program site before you plan around it.
The rental question, which is the real Ontario story
Most Ontario homes with a rented tank got it the same way: it came with the house, and nobody read the paperwork at closing. Here is what renting actually costs.
| Rental type | Typical monthly, CAD |
|---|---|
| Electric tank | $19–$32 |
| Gas, conventional vent | $25–$37 |
| Gas, power vent | $38–$49 |
| Gas, direct vent / power direct vent | $42–$57 |
| Tankless gas | $45–$63 |
| High-efficiency condensing | $66–$94 |
Published rates from Enercare and Reliance, September 2026.
Now the arithmetic. At $40 a month, sixteen years of rental is $7,680. Buying and installing a comparable tank yourself is a fraction of that, and the break-even lands somewhere around year three or four. Rental buys you repairs for the life of the equipment and fast service, which has genuine value if you have no appetite for a cold shower on a holiday weekend. It is not a swindle. It is just an expensive convenience that most people have never priced.
How a buyout works
Both major rental companies price a buyout on the age of the unit, against a declining schedule in your rental agreement. You exercise it by notifying them in writing or by phone. Neither publishes the schedule openly; you have to call and ask for your number.
User-reported buyout figures circulating for Reliance give a sense of the shape — roughly $1,800 at four years, several hundred to a couple of thousand at seven, a few hundred at eleven, and close to nothing at sixteen. Treat those as an indication of the curve, not as quotable pricing. Your number comes from your provider.
There is also usually a retrieval charge of around $75 when you end a rental, waived in several situations, including where the heater has been rented fifteen years or more.
Expect a retention pitch. Enercare’s own material argues that a single component repair can cost $183 to $827 plus tax, which is more than what is left on many rental agreements. That argument is true and it is also a sales argument; both things can be so.
The lien that is no longer a lien
For years the standard warning was that a rented water heater put a notice of security interest on your title, and that it would blow up at closing. That warning is now out of date.
The Homeowner Protection Act, 2024 became law on 6 June 2024. It bans the registration of notices of security interest for consumer goods — goods installed in a home for personal, family or household use, with water heaters, air conditioning equipment and furnaces named specifically — and it deems every consumer notice already registered on title to be expired. They may still appear in the title documents, but the land is no longer affected by them.
You are not required to remove one. If you want it cleared cosmetically during a sale, a lawyer files an application to amend the register. Ontario’s own guidance carries a warning worth repeating: be cautious of companies charging fees to remove notices of security interest, as this may be fraudulent activity.
What still binds you at closing
The contract. A typical rental agreement requires you to tell the purchaser the heater is rented, to have that disclosed in the agreement of purchase and sale, and to notify the rental company in advance of the buyer’s name and the closing date. The buyer then assumes the agreement.
So the exposure moved rather than disappeared. It is now a disclosure and assumption issue handled by your lawyer and your realtor, and the failure mode is a buyer who refuses to assume a rental on the day of closing rather than a lien blocking title. Raise it when you list, not the week before you close.
The door-to-door rule that most people never learned
Since 1 March 2018, under Ontario Regulation 8/18, a business cannot offer or sell any of the following at your home unless you started the contact:
- Water heaters
- Furnaces, air conditioners, and HVAC systems generally
- Air cleaners and air purifiers
- Water treatment devices, purifiers, filters and softeners
- Duct cleaning services
The consequence is unusually strong, and worth reading twice: if you signed as a result of restricted door-to-door marketing, or because of misleading material left at your home, the contract is void and you can keep the goods or services without obligation. The business must also reimburse removal and return costs.
Separately, and regardless of how the contract was signed, you have ten calendar days to cancel a home contract for any reason, and up to one year if the contract is missing required information or contains false or misleading statements.
Businesses must keep records proving you initiated contact for three years. If you are in a dispute, that is a useful thing to know exists.
Signs your tank is near the end
Conventional tanks last around ten years. Tankless units are commonly quoted at up to twenty, though that figure comes from installers rather than manufacturers. What to watch for, per Rheem’s own guidance:
| Sign | What it usually means |
|---|---|
| Rumbling, popping or cracking noises | Sediment on the bottom of the tank, forcing the burner to work harder |
| Water pooling around the base | Internal corrosion. This one means replacement, not repair |
| Rusty or brownish water | Tank corrosion |
| Sulphur smell | Bacterial growth in the tank |
| Less hot water than you used to get | Sediment, a failed element or burner, or a tank that was always too small |
| Energy bill creeping up | Efficiency dropping, longer run times |
The useful move is to replace on your schedule rather than theirs. A tank that fails at 11 p.m. on a long weekend gets you an emergency rate, no time to compare quotes, and whatever unit is on the truck.
Red flags
| What you see | Why it matters | What to do |
|---|---|---|
| Someone at your door selling a water heater | Banned since 2018 unless you initiated contact | Do not sign. If you already did, the contract is void and you keep the goods |
| “There’s a lien on your house, we can remove it for a fee” | Consumer notices of security interest were deemed expired in 2024 | Ontario warns this may be fraudulent. Speak to your own lawyer |
| A rental signed during a “free inspection” | Advance consent is required before pitching restricted products on a service visit | Check the ten-day cancellation window immediately |
| Buyout quoted without reference to age | Buyouts follow an age-based schedule in your agreement | Ask for the schedule and your unit’s install date in writing |
| Emergency replacement on the same visit | After-hours work carries a 50–100% premium and no time to compare | If you have any hot water at all, get a second quote in the morning |
| No permit mentioned | Gas, plumbing and electrical work carry permit requirements | Ask who files and whether it is in the price |
| Tankless sold purely on “endless hot water” | Venting, gas line sizing and cold-inlet performance in an Ontario winter all matter | Ask what gas line and venting changes the install needs |
Frequently asked questions
A conventional tank runs about ten years. Installers commonly quote up to twenty for tankless units, though manufacturers are less specific. Rumbling noises, rusty water, a pool of water at the base or a steady drop in hot water are the signals to replace on your own schedule rather than in an emergency.
Ontario has banned unsolicited door-to-door sales of water heaters since 1 March 2018. If you signed as a result of that visit, the contract is void and you can keep the goods without obligation, and the business must cover removal costs. Separately, any home contract carries a ten-day cancellation right, and up to a year if the contract was missing required information or contained misleading statements.
Buying is cheaper over any normal ownership period. Sixteen years at $40 a month is $7,680, against a few thousand to buy and install, with the break-even landing around year three or four. What renting buys is repairs for the life of the unit and priority service, which is a real benefit if you would rather not manage it.
No. The Homeowner Protection Act, 2024 banned registration of notices of security interest on consumer goods and deemed every consumer notice already on title to be expired. The rental contract itself still stands, and it must be disclosed in the agreement of purchase and sale so the buyer can assume it.
Ask your provider for the buyout amount, which is set by the age of the unit against a schedule in your agreement. You exercise it in writing or by phone. Expect a retrieval charge of around $75 in most cases, waived in several situations including units rented fifteen years or more.
Roughly $2,100 to $5,500 installed for a gas tank and $1,900 to $4,500 for an electric tank, with Toronto and the GTA at the upper end. Tankless gas runs $3,900 to $8,500 and heat pump units $5,000 to $7,800. Removal, venting changes and permits are usually extra.
Sources
- Government of Ontario — Notices of security interest and the Homeowner Protection Act, 2024, ontario.ca, checked 18 September 2026
- Government of Ontario — Rules for businesses entering contracts in a consumer’s home (O. Reg. 8/18, in force 1 March 2018), ontario.ca, checked 18 September 2026
- Government of Ontario — Door-to-door sales and home service contracts, ontario.ca, checked 18 September 2026
- Enercare — tank water heater rental pricing and rental agreement terms and conditions, enercare.ca, checked 18 September 2026
- Reliance Home Comfort — Ontario water heater pricing guide, reliancehomecomfort.com, checked 18 September 2026
- Save on Energy — Home Renovation Savings Program, heat pump water heater rebate, saveonenergy.ca, checked 18 September 2026
- Rheem — signs your water heater is going bad, rheem.com, checked 18 September 2026
- Installed pricing ranges: Hot Water Ottawa, Premier Plumbing and Go Lime, checked 18 September 2026
This guide explains published Ontario rules and market pricing in plain language. It is not legal advice, and Carpenter Bee is not a law firm. For a rental contract you have already signed, or a dispute at closing, speak to a lawyer or a licensed paralegal.
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