Ontario: the biggest market, the busiest search results, and rules about who may advertise

The Ontario market and its buyers

Answer first: Ontario demand is concentrated in a few very large cities, and the competition there punishes broad, unfocused marketing.

Toronto, Ottawa, Mississauga, Brampton, Hamilton, London, Markham and Vaughan are the largest markets. Buyers in these cities compare several businesses before calling and read reviews closely. A business with a thin profile pays more for every lead because fewer searchers choose it.

Heating is mostly gas. In 2023, Statistics Canada recorded natural gas as the main heating energy for 58% of Ontario households, electricity for 18% and propane for 4%. Gas work is regulated, which matters for how you describe it.

Seasons and which problem peaks when

Answer first: Ontario has two different climates, and the seasonal swing is larger in the north than near the lakes.

• Southern Ontario winter: heating and plumbing demand peaks; the Great Lakes moderate the extremes. In crowded cities, the common problem is ads running wide and drawing bad leads from across the metro.
• Northern Ontario winter: longer and colder, with fewer businesses spread over large areas. Missed calls and travel time are the main leaks.
• Spring to fall: roofing, renovation, landscaping and planned equipment upgrades. Rebate-led enquiries peak, with plenty of "just checking" calls.

Regulators worth knowing

Answer first: in Ontario, two regulators directly limit who may do, and in one case advertise, certain work.

• TSSA oversees fuels, boilers and pressure vessels, elevating devices and more. Only TSSA-registered fuels contractors may do fuels work, using certified gas technicians.
• ESA licenses electrical contractors. ESA says only licensed contractors may bid on or advertise electrical work for others, so electrical marketing must start with that question.
• The Home Construction Regulatory Authority licenses new-home builders and vendors.
• WSIB handles workplace insurance, and Skilled Trades Ontario handles trade certification.

We link these for context. Your licensing obligations are a question for the regulator.

Programs that shape demand, as of October 2026

Answer first: Ontario's main home-energy rebates are generous enough to change what customers ask for, especially for heat pumps.

• The Home Renovation Savings Program, run by Save on Energy and Enbridge Gas, offers rebates for single upgrades, including cold-climate air source heat pumps up to $7,500 and ground source systems up to $12,000, as well as bundled upgrades after an assessment.
• The Energy Affordability Program provides free upgrades to income-eligible households, including a limited-time heat pump stream for eligible oil-heated homes.

Ontario had no federal affordability retrofit agreement as of October 22, 2026. Confirm current terms with the administrators before you use them in marketing.

How we would approach the four problems in Ontario

Answer first: narrow the target, build reviews, then scale what works, one municipality at a time.

1. Tighten geography. Pick the municipalities you can serve quickly and build a page and campaign for each, instead of one page for "the GTA".
2. Close the review gap. In crowded map results, review count and recency decide clicks. Start the review routine early.
3. Score sources. Use the lead quality scorecard to see which platforms are worth their cost in a competitive market.
4. Check advertising rules first for electrical and fuels work.

One more Ontario habit worth adopting early: tag every lead with its municipality, not just "GTA", so you can see which towns are worth more spending.

Results from our HVAC work, including Roma Heating & Cooling and its 400% organic traffic growth in 12 months, are on the results page. Return to all areas for other regions.