Trades & Contractors · 6 min read · Last updated
Toronto's Heating Contractor licence has a catch that surprises people: you need it even to advertise as a heating contractor. The category covers contractors installing warm air, hot water or steam heating equipment of any kind — with oil tanks and oil and gas burners carved out — and the City treats marketing the service as being in the business. Here is how the licence works.
The City of Toronto lists this under its “Trade” category: “Heating contractors installing warm air, hot water or steam heating equipment of any kind (except oil tanks and oil and gas burners) require a licence. This includes anyone who advertises themselves as a heating contractor.”
Who needs this licence?
You need this licence if you install warm air, hot water or steam heating equipment of any kind in Toronto. The City's definition carves out oil tanks and oil and gas burners — those are regulated on separate tracks — but the rest of the heating trade is in: furnaces, boilers, hydronic systems and steam equipment.
Two things widen the net. First, the advertising rule: anyone who advertises themselves as a heating contractor needs the licence, so the website and the truck wrap create the obligation before the first install does. Second, do not confuse this class with the Master Heating Installer licence — that master credential covers planning, installing and connecting heating equipment including air conditioning and ventilating systems, while the Heating Contractor licence is the business-level licence for heating installation itself.
What documents do you need?
- Two pieces of government-issued identification, at least one with a photo
- Corporate documents or business name registration for the contracting business
- Qualifications evidence for the heating trade, per the City's supporting-documents checklist
- A police reference check where the City requests one
Qualifications evidence matters in the heating trades — assemble certificates and experience records against the checklist rather than assuming a business registration alone will do.
Zoning and premises requirements
Heating contractors work at their customers' properties, so the licence carries no premises requirement. Run the office from home if you like — within Toronto's home-occupation rules — and treat anything site-specific, like the permit an installation needs, as part of the project rather than the licence.
Inspections and approvals
Heating installations are where inspection really happens: HVAC work routinely needs its own stand-alone permits, and that permitted work is inspected on its own track through the City. The licence side is quieter — Municipal Licensing & Standards has no premises to inspect and acts on complaints, including complaints about unlicensed advertising.
How much does it cost?
The City charges an application fee and an annual renewal fee, set in its licensing fee schedule and confirmed while you apply. Both are paid to the City directly — and both cost far less than enforcement for operating or advertising unlicensed.
How to apply
Apply to Municipal Licensing & Standards under Chapter 545 — through the City's online Business Licence & Permit portal, taking applications since January 2026, or in person. File identification, business registration and qualifications evidence together, with a police check where requested.
Sequence matters: get the licence before the advertising goes live. Permits2Go's workspace preps the licence package, then handles the HVAC permit applications your installs will need.
Renewals and staying compliant
Annual renewal — and the advertising rule makes lapses expensive: marketing that ran legally in March is a violation in April if the licence expired in between. Renew early, update the City on business changes, and keep the licence number handy for quotes and ads.
Quick quiz: test what you learned
Three questions, all answered in this guide. Click an answer to check it.
1. When does a Toronto business first need the Heating Contractor licence?
The City's definition explicitly includes anyone advertising as a heating contractor, so marketing alone triggers the requirement.
2. Which equipment is excluded from the Heating Contractor category?
The definition covers warm air, hot water and steam heating equipment of any kind except oil tanks and oil and gas burners.
3. How does the Heating Contractor licence differ from the Master Heating Installer licence?
The master class is the broader personal credential — its scope explicitly includes air conditioning and ventilating systems.
Skip the paperwork
Tell Permits2Go about your business and it assembles the licence application for you — document checklists, e-signatures and a guided workspace for Toronto, with more cities on the way.
This guide is general information, not legal or professional advice. Licensing requirements, by-laws and fees change and vary by municipality — always confirm the current rules with the City before you apply.