DuPage and Will Counties · ZIP 60540, 60563, 60564, 60565
A new furnace is a 15-to-20-year relationship. The equipment matters, but the sizing, venting, and commissioning are what decide whether a Naperville home actually gets what it paid for.
Apex Climate Control installs furnaces throughout Naperville — from downtown and the Riverwalk to the south-side neighborhoods along 95th Street — working out of North Aurora, about 21 minutes from our North Aurora shop.
Install day means sheet metal that fits, venting and condensate done to code, gas connections tested, and a full commissioning: temperature rise, static pressure, and safety verification before we leave.
Price a replacement when you recognize a few of these:
Install day, step by step:
We measure the house, inspect ducts and venting, and look at how the old system actually performed before recommending capacity and efficiency.
Multiple tiers with real model numbers and real prices — plus the current $175 single-unit or $350 full-system discount applied where it fits. It is the same standard we bring to every Naperville visit.
Old unit out, new furnace set with properly fitted transitions, venting and condensate to code, gas leak-tested, drop cloths down the whole way.
Temperature rise, gas pressure, static pressure, and safety controls verified with instruments; warranty registered; thermostat and filter walkthrough before we go. DuPage and Will Counties homes deserve nothing less.
What a new furnace costs in Naperville — the honest levers:
Monthly math matters more than sticker math for most families: through Enhancify, approvals start at a 550 credit score with 0% promotional options for qualified buyers — which often puts the right furnace within a budget that the wrong cheap one would eventually blow anyway through bills and repairs. DuPage and Will Counties homeowners have seen enough games; we just do not play them.
A large share of Naperville furnaces went in during the same building years, and they are aging out on the same clock. Replacing yours on a mild week in your own timeline beats replacing it during a January cold snap on the emergency schedule.
The replacement missteps that cost for decades:
Real customers, real Google reviews
“The Apex Climate Control technicians are simply the BEST!”
“Great service and quality work, thanks!”
Good to know
If the air conditioner is also mid-teens or older, pairing is usually the play: shared labor, matched components, and the $350 full-system discount. If the AC has years left, we will be the first to say leave it alone.
Always — removal and proper disposal of the outgoing equipment is built into every install we do.
A standard replacement is typically completed in a day. Venting changes, duct modifications, or full-system installs can add time — you will know before we start. We would rather you ask than guess.
Yes. A cracked exchanger can allow combustion gases including carbon monoxide into the air stream, and on most aging furnaces the repair cost approaches replacement anyway. This is the one diagnosis where we will not recommend limping along.
Yes — Enhancify approves down to a 550 score, with 0% promotional terms for qualified customers, and the online application takes minutes with no obligation attached.
With heating seasons this long, 95%+ condensing furnaces usually earn their premium back in fuel savings — but the right answer depends on your venting situation, how long you plan to stay, and your budget. We lay out the math for your actual house.
The house decides — envelope, windows, insulation, duct capacity — not the label on the old unit. Homes get air-sealed, remodeled, and re-windowed over decades; matching the old furnace just repeats a sizing decision somebody made for a different version of your house. That has held true on every Naperville job we have run.
One call reaches our local team — no national call center, no runaround. Serving Naperville and all of DuPage and Will Counties.
Or email support@apex-climate-control.com · Financing available with credit scores as low as 550