DuPage County · ZIP 60148
Your heat pump has no off-season in Lombard — it carries the house twelve months a year, and it deserves a repair tech who understands both halves of its job.
We work out of North Aurora, about 38 minutes from our North Aurora shop, and we handle heat pump calls across Lombard and the rest of DuPage County.
You get the actual fault, in plain English, with a price before any work starts — and an honest read on whether repair still makes sense for the system's age.

Call 630-486-0401 if your Lombard heat pump is showing any of these:
Here is how a heat pump repair call runs in Lombard:
We test the system the way a heat pump actually works — heating, cooling, and defrost — with pressures, temperatures, and electrical readings in each. Reversing valves, defrost sensors, and auxiliary staging get checked specifically, because those are the failures generic AC diagnostics walk right past.
Once the fault is identified, you get the whole picture without the jargon: the failed part, the probable cause, the price to fix it — and, when age makes it relevant, the honest repair-versus-replace comparison. Nothing proceeds until you say so. Ask any Lombard customer who has watched us work.
The fix goes in right — correct parts, correct refrigerant handling, correct control configuration — and then the system proves itself through full cycles in both modes while we verify capacity and operation.
Heat pump components rarely die alone; something usually worked them to death. Before we leave, we check airflow, coil condition, charge, and the auxiliary heat settings, so the repair lasts instead of repeating. We hold that line on every job in DuPage County.
From homes near Lilacia Park to downtown Lombard and the Metra station, the Lombard heat pumps we service fail in familiar ways — defrost boards, dual-run capacitors, reversing valve solenoids — and the truck stocks accordingly.
What people get wrong when these systems act up:
What heat pump repairs cost — honestly:
Age math runs faster on heat pumps: year-round duty means a 12-year-old unit has worked like a much older AC, so major component quotes — compressor, reversing valve — on older units get the honest repair-versus-replace treatment automatically. Both totals, side by side, with financing options on the replacement column; the decision stays yours. That policy has never once changed for a Lombard customer, and it will not start now.
Real customers, real Google reviews
“Jojo and his team did an after-hours service call in a lightning fast manner. They were professional and at a very reasonable price. I highly recommend them to all the people I know.”
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Good to know
The reversing valve is the prime suspect — it is the component that redirects refrigerant flow between modes, and its solenoid or the valve body itself can fail. The cheaper alternative is a control or thermostat fault giving the wrong orders. Testing separates them quickly, and both are repairs we handle routinely. That has held true on every Lombard job we have run.
Start with the reassuring possibility: heat pumps deliver milder air than furnaces by design — near body temperature — so it can feel cool while heating perfectly well. The concerning version is when the house genuinely cannot hold temperature: that points to low refrigerant, a reversing valve fault, or a mode problem, and it is worth diagnosing before auxiliary heat quietly takes over your electric bill.
Emergency heat runs the backup elements alone and lets the heat pump rest. Reach for it when the heat pump is clearly in trouble — encased in ice, screaming, tripping breakers — and think of it as a warm bridge to the repair appointment. What it is not is an everyday setting; resistance heat at Illinois electric rates will make sure you remember that.
Age and repair size decide it, same as any equipment — with the note that heat pumps age faster than ACs because they run year-round. Minor electrical fixes make sense at almost any age; compressor or reversing-valve work on a unit past 10–12 years deserves the honest side-by-side against replacement, and we will put both numbers in front of you.
Frost that comes and goes with defrost cycles: normal machinery doing normal work. Ice that builds into a permanent shell: a defrost fault, low charge, or starved airflow — and running it that way punishes the compressor hourly. Emergency heat on, phone call in, and we will sort which failure it is. If you are in Lombard, we can usually get eyes on it quickly.
Brand-agnostic by design: the parts that fail — capacitors, contactors, defrost boards, fan motors — are largely universal, and the diagnostics do not care whose sticker is on the cabinet. If it is a heat pump in DuPage County, it is our patient.
Ideally twice a year — once before heating season, once before cooling — because it works both. Annual service is the practical minimum. Year-round duty means maintenance matters more for heat pumps than for any other residential HVAC equipment.
One call reaches our local team — no national call center, no runaround. Serving Lombard and all of DuPage County.
Or email support@apex-climate-control.com · Financing available with credit scores as low as 550