DuPage County · ZIP 60515, 60516
Most Downers Grove homeowners replace a furnace exactly once or twice in a lifetime — which is why we walk you through it like it is the first time, every time.
From homes near the Tivoli Theatre to the neighborhoods around Patriots Park, we have set furnaces in Downers Grove closets, basements, and utility rooms of every vintage.
Sizing comes from the house — envelope, ductwork, and real heating performance — because an oversized furnace short cycles its way to an early death and an undersized one loses the fight in January.
Here is when a new furnace beats another repair:
From estimate to first heating cycle:
Before any recommendation, we size up the actual building — envelope, ductwork, venting path, and how the outgoing furnace really performed through past winters — so capacity and efficiency get chosen by evidence. It is the same standard we bring to every Downers Grove visit.
Multiple tiers with real model numbers and real prices — plus the current $175 single-unit or $350 full-system discount applied where it fits.
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. It is how we have built our name around Downers Grove.
Furnace sizing is a local craft: a Downers Grove home needs equipment that handles design temperatures near zero with reserve for the polar-vortex outliers, without being so oversized it short cycles through the shoulder seasons. a broad mix from 1920s bungalows near the tracks to 1950s–70s ranches and splits and ongoing teardown-rebuilds, so equipment ages and duct designs change house to house on the same block — so we size the house in front of us.
What to avoid when replacing a furnace:
Replacement money, without the fog:
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. We are about 34 minutes from our North Aurora shop, and the estimate is always free of surprises.
Real customers, real Google reviews
“The Apex Climate Control technicians are simply the BEST!”
“Great service and quality work, thanks!”
Good to know
With DuPage County heating seasons running four-plus months, a 95%+ condensing furnace usually pays its premium back in gas savings — but venting logistics, how long you are staying, and budget all get a vote. We run the comparison on your actual house and tell you when the cheaper tier honestly wins. A quick call sorts it out faster than wondering.
It comes from the house — square footage, insulation, windows, and duct capacity — not from matching whatever was there before. Homes get air-sealed, remodeled, and re-windowed over the years; the old label is history, not guidance.
It depends on capacity, efficiency tier, and what the venting, gas, and ductwork need — so we quote in person, in writing, at multiple price points. Current specials take $175 off a single unit or $350 off a full system, and financing is available from a 550 credit score.
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.
Yes — removal and disposal of the old equipment is part of every install.
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 are about 34 minutes from our North Aurora shop, so help is close.
That one is not a judgment call. A cracked exchanger can push combustion gases — carbon monoxide included — into your home's air, and on older furnaces the repair costs so much that replacement wins anyway. It is the single diagnosis where we will not help you limp along.
One call reaches our local team — no national call center, no runaround. Serving Downers Grove and all of DuPage County.
Or email support@apex-climate-control.com · Financing available with credit scores as low as 550