The GTA Property Manager's Late-Summer HVAC Checklist

By the time the first cold night hits the GTA — and it always arrives earlier than the budget assumed — the difference between a quiet heating season and a winter of no-heat calls was decided weeks earlier, in late summer. Here is the checklist we walk through with every building we take on, in the order that actually matters.

1. Start on the roof

Rooftop units have been running hard since June. Before the changeover, they need condenser and evaporator coils cleaned, belts and sheaves inspected, and — critically — the gas heat exchanger and burner inspected before anyone needs heat. A cracked heat exchanger found in late summer is a scheduled repair. The same crack found on the first cold morning is an emergency, a tenant complaint, and possibly a carbon monoxide risk.

2. Then the boiler room

Fall start-up is not 'turn it on and see.' A proper start-up includes burner inspection and cleaning, combustion analysis, testing of low-water cutoffs and relief valves, and verification of cascade sequencing on multi-boiler plants. If your contractor's start-up visit takes twenty minutes, you should ask what was on their checklist — and ask to see it in writing.

3. The paperwork

In Ontario, TSSA compliance is not optional for fuel-fired and pressure equipment, and the burden of demonstrating it lands on the building, not the contractor. Ask a simple question this month: if TSSA or your insurer asked for last season's maintenance documentation today, could you produce it in an hour? If the answer is no, that is not a maintenance gap — it is a liability sitting on your desk. At RackAir, documentation is standard practice on every visit, not an upsell.

4. The deficiency list

Every building has one, whether or not it is written down. Late summer and early fall are when a deficiency list is worth money: it becomes next year's budget line items while there is still time to plan, tender and schedule capital work. A contractor who reports deficiencies proactively — with photos, severity, and cost ranges — is doing capital planning for you. One who only reports what broke is billing you for the absence of a plan.

5. Pressure-test your emergency coverage

Do it before you need it. Who answers at 2 a.m. on a holiday weekend? What is the guaranteed response time in your contract — and is it in the contract, or just in the sales conversation?

If any of these questions made you wince, that is worth a conversation. RackAir runs mechanical programs for multi-residential, senior living, hospitality and industrial buildings across the GTA — with dedicated account managers, a UA Local 787 licensed workforce, and one standard since 1992. Book a mechanical audit and we will put your building's real condition on paper.