Here's a piece of advice that costs us money in the short term and saves our customers money over the long term: book your fall furnace tune-up before Labour Day weekend.
Most homeowners don't think about heating in August. The AC is running, the kids are still in summer mode, the furnace is the last thing on anyone's mind. That's exactly why August is the best time to get on our calendar.
The HVAC calendar reality
Our annual book of business is shaped like a saw tooth:
- May-early June: AC tune-up rush. We're booking 1-2 weeks out.
- Mid-June through August: Steady AC repair work + the occasional install. Our calendar has real availability.
- September: Furnace tune-ups start trickling in. Still bookable.
- October: Furnace tune-up peak. We're booking 2-3 weeks out.
- November-December: First cold snaps create no-heat emergency calls. Tune-up bookings get pushed.
- January-February: Emergency-only mode for repairs. Tune-ups effectively unavailable.
The trough between mid-June and August is when you can pick your own appointment time. The peak in October means you take what's offered.
What a furnace tune-up actually does
Worth understanding what you're paying for, since people sometimes view tune-ups as optional:
- Combustion analysis — we measure CO output, combustion efficiency, and gas pressure with calibrated instruments. This is the most important safety check on any combustion appliance.
- Heat exchanger inspection — visual and borescope camera. Heat exchanger cracks are the single most dangerous failure mode (CO into your home) and the single most expensive to fix (often a full replacement).
- Burner cleaning — dust and combustion residue accumulates and reduces efficiency.
- Flame sensor cleaning — the most common cause of "furnace won't stay on" calls. We clean this preemptively.
- Igniter inspection — igniters degrade gradually. We flag ones that are likely to fail before next winter.
- Blower motor inspection and lubrication — older motors have oil ports that benefit from annual attention.
- Blower wheel cleaning — dust on the blower wheel reduces airflow and forces the system to work harder.
- Electrical contactor and capacitor testing — measured under load.
- Gas valve testing — verifies the valve modulates correctly.
- Thermostat calibration — verified against an independent thermometer.
- Filter check — and we'll replace it if needed.
- System cycle test — run the unit through a full heating cycle to verify proper operation.
Total time: about an hour. We give you a written report.
Why August specifically
Three reasons:
- Calendar availability. You pick the day and time. By October you take what's available.
- No competing urgency. In October, if we find a problem during your tune-up, we're trying to fit a repair into a booked calendar. In August, we can usually return within a few days to fix anything that needs attention.
- Parts availability. Common consumable parts (igniters, flame sensors, blower capacitors) are in our warehouse year-round. But specialty parts can be back-ordered in peak season — in August, the supply chain is relaxed.
There's also a psychological factor: doing the tune-up in August means you don't have to think about your furnace again until next summer. It's done, it's documented, you have a clean bill of health. Peace of mind has real value.
What about brand-new furnaces?
If your furnace is less than 2 years old, you might be tempted to skip. Don't.
- Most manufacturer warranties require documented annual professional maintenance to remain valid
- New equipment can have subtle installation issues that only show up after a season of operation (loose duct connections, drifting gas pressure, controls that need calibration)
- Establishing a tune-up record from year 1 makes warranty claims much easier if anything does go wrong later
The tune-up cost on a new furnace is the same as on an old one, and it's a small price for warranty preservation alone.
What if you've never had a tune-up?
If you're reading this and realizing your furnace has been running for 5+ years with no professional maintenance, get one scheduled now. The good news: we can usually bring an older neglected furnace back into proper operating condition during a tune-up, with maybe one or two minor repairs. The bad news: if developing problems have been ignored for years, the diagnostic visit may reveal that the equipment is closer to end-of-life than you realized.
Either way, you want to know.
How to book
Call us at (613) 363-9011, request through the contact form, or — if you're a maintenance plan member — wait for our scheduling email in late August.
We honor pricing through the season — there's no early-bird discount and no late-season penalty — so this isn't a marketing push. It's genuinely better for you.