Heating · Fox Valley & western suburbs
Every furnace gets tested the same way each year: by the first real cold snap. A fall tune-up is how yours passes.
The January no-heat calls that fill our board share a pattern: almost every one traces to something a fall tune-up would have caught. A flame sensor one season's residue from causing shutdowns. An igniter reading weak. A filter collapsing toward the blower. Failure in this climate is rarely sudden — it is just unmeasured.
Our tune-up measures. Combustion quality, temperature rise against manufacturer spec, static pressure, motor amp draws, safety-control operation — recorded year over year so drift is visible long before it becomes a phone call. Cleaning rides along where it counts: flame sensor, burners, blower path.
And at the center of every visit, the safety inspection: heat exchanger condition, venting integrity, combustion. Gas equipment earns that seriousness, and a cracked exchanger is precisely the kind of failure that announces itself to a camera and a meter long before it announces itself to a CO detector.

A furnace here logs more runtime in one winter than systems in mild climates log in three. That duty cycle is exactly why maintained furnaces and neglected furnaces age so differently — and why the homes on our annual maintenance rhythm almost never appear on our emergency board. That is not luck; it is the entire point.
Book early: the fall schedule fills fast once the first freeze hits the forecast, and handling findings in October on your calendar beats handling them in January on the weather's.

Good to know
Yes — the Apex Maintenance Plan covers both seasonal tune-ups (heating included), adds priority scheduling and member discounts — Basic $19.99/month, Premium $27.99/month with an included filter change, 15% off service, and $500 off a replacement. It's the set-and-forget version of this page: the visits book themselves. Details at /maintenance-plan/ or call 630-486-0401.
September or October — before sustained cold, with time to address findings on your schedule. Missed the window? A mid-winter tune-up still beats gambling on an untested furnace.
About an hour for most systems; heavy cleaning or findings worth chasing can extend it, and we tell you as it happens.
That is its core purpose — heat exchanger, venting, and combustion are exactly the failure points that put CO into living space. Run detectors on every level regardless; they are the backup, not the plan.
Yes — pair it with an AC tune-up, air duct cleaning, or dryer vent cleaning and handle everything in one visit. The duct + dryer bundle saves 15% through November 30, 2026.
Talk to a real local team about your heating, cooling, or indoor air problem — no call centers, no runaround.
Or email support@apex-climate-control.com · Financing available with credit scores as low as 550