Ontario treats water heaters as a restricted product for contracts signed in the home. The province's business guidance, published January 29, 2018, says the key rule took effect on March 1, 2018. Its consumer page was updated on June 19, 2026. This explainer summarises both, as of October 2026, for contractors who sell, rent or replace water heaters in the province. It is a summary of public guidance, not legal advice.
Which products are restricted
The short answer: water heaters and most of the home comfort aisle.
The province lists:
- furnaces, air conditioners, air cleaners and air purifiers;
- water heaters, water treatment devices, water purifiers, water filters and water softeners;
- duct cleaning services;
- any good or service that performs one or more of these functions, such as a full HVAC system.
The page gives no separate rules for water heaters beyond the general ones below.
When a contract may be signed in the home
The short answer: only when the homeowner reached out first, or under an existing contract.
According to the guidance, a business may enter a contract for a restricted product at a consumer's home only if:
- the consumer initiated contact, for example by calling or sending a message and asking for a visit to buy or lease the product; or
- the business already has a written contract with the consumer, and before the visit it asked whether it may make an offer and the consumer agreed.
A visit booked for a repair, maintenance or an energy assessment does not count as an invitation to sell. The technician may leave information but cannot sign a new agreement for a restricted product on that visit.
Paperwork, cooling-off and records
The short answer: a cover page, 10 days to cancel, and three years of proof.
- Cover page. Every contract for a restricted product needs the province's consumer-rights cover page, signed with the contract before any work begins. The consumer page says the cover page was updated after the Homeowner Protection Act passed; we cover that law in our NOSI story.
- Disclosure. Since May 1, 2018, contracts must clearly state overall costs and cancellation fees.
- Cooling-off. The consumer has 10 days to cancel for any reason, counted from receipt of the written agreement. Cancelling after asking for early installation can leave rental payments, removal costs or excess wear charges owing.
- Longer cancellation rights. The consumer page says a homeowner can cancel within one year if there was no written contract, required information was missing, or the business made a false or misleading statement.
- Records. Businesses must keep proof of who initiated the contact, or of the existing contract and consent, for three years.
Enforcement
The short answer: void contracts and government inspections.
If a contract comes from banned door-to-door marketing or misleading materials left at the home, it is void. The homeowner can keep the product with no obligation, and the business must reimburse third-party removal or return charges. The province says it may inspect businesses and can respond with caution letters, compliance orders, charges and prosecutions.
Common situations
The short answer: the source of the first contact decides most cases.
Based on the province's guidance, here is how a few everyday scenarios line up. These are our readings of public pages, so check with the ministry or a lawyer for anything unusual.
- A homeowner calls about a leaking tank and asks for a replacement quote. The homeowner initiated contact for the purpose of buying, which the rules allow.
- A technician is on site to fix a pilot light and spots an old tank. This is a repair visit. The technician can leave information but should not sign a new agreement then.
- A long-time maintenance customer is offered an upgrade. Allowed only where a written contract exists and the business asked before the visit whether it may make an offer, and the customer agreed.
- A canvasser knocks on doors offering "free inspections". This is the conduct the rules were written to stop.
Analysis: what it means for contractors
This section is our analysis, not provincial guidance.
- Your marketing must make the phone ring first. In Ontario the legal sale starts with the homeowner's call, text or message. Search visibility, map listings and referrals are not just good marketing here; they are the compliant path. See our local SEO service.
- Log the first contact. A call-tracking record or a saved message is the simplest proof that the customer initiated contact. Keep it with the job file.
- Train technicians on the repair-visit rule. "We'll leave a brochure, call us if you'd like a quote" is the safe script.
- Avoid flyers that look official. Misleading materials can void the contract. Plain branding, a real company name and clear pricing language are safer.
We market contractors; we do not install, rent or sell water heaters. For the regional picture, read our Ontario page.
Frequently asked questions
Can my technician sell a new water heater during a repair call in Ontario?
Generally not. The province says a business visiting for a repair, maintenance or an energy assessment cannot enter a new contract for a restricted product and may only leave information, unless there is an existing written contract and the homeowner agreed in advance to hear an offer.
How long is the cooling-off period?
Ten days, starting when the homeowner receives a written copy of the agreement. If the homeowner asked for installation within those 10 days, the province says they may still owe rental payments, removal costs or excess wear charges after cancelling.
What records must a business keep?
Records showing either that the homeowner initiated the contact, or that there was an existing contract and the homeowner agreed to be solicited. The province says these must be kept for three years from the contract date.
What happens if the rules are broken?
A contract that results from banned door-to-door marketing or misleading materials is void, and the homeowner can keep the product without obligation. The province lists caution letters, compliance orders, charges and prosecutions as possible enforcement.