Apex Answers
Once a year, ideally in early fall before the first cold stretch. Annual service catches the small problems — a weak flame sensor, a dirty burner, a marginal heat exchanger — before they turn into a no-heat call in January.
A furnace tune-up is short and specific: burner cleaning, flame sensor check, gas pressure and temperature rise measurements, electrical connections, and — the one that actually matters for safety — a heat exchanger inspection to catch cracks before they become a carbon monoxide risk. None of that happens on its own; it requires someone opening the cabinet and measuring, not just glancing at the unit.
Skipping maintenance doesn't usually cause a dramatic failure the same season — it compounds. A furnace that's never serviced runs less efficiently every year, and the parts that would've been caught early (igniters, flame sensors) tend to fail during the exact week you need heat most.
Call 630-486-0401 — we'd rather give you a real answer than have you guess.
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