AC & Furnace Replacement and Repair in Peoria, IL
Whether the system needs fixing or replacing, what helps is a written number for your house. Tell us what you have and we will get you a quote from a vetted Peoria-area contractor. Free, and you are not committing to anything.
In Peoria, a new central air conditioner installed typically runs $5,200-8,600; replacing the furnace at the same time brings the pair to $8,900-15,500.
Doing both together saves roughly $1,200-2,400 against two separate jobs, because the labour, the coil match and the permit only happen once.
In older Peoria homes, upstairs rooms that never cool are usually a duct problem rather than an undersized air conditioner - and replacing the box alone will not fix it.
Repair it, or replace it?
The honest rule of thumb is age plus refrigerant. But in a climate that needs both heating and cooling there is a second question that changes the maths, and most people are not told about it until afterwards.
- Under about ten years old and the repair is a few hundred dollars - fix it. Capacitors, contactors and blower motors are maintenance, not a reason to replace a system.
- Fifteen years or older and it needs a compressor or a coil - price the replacement instead. You would be putting the most expensive part into the oldest machine.
- It still runs R-22 refrigerant - that has been phased out, so a leak repair means paying a lot for something that is only getting scarcer.
- The furnace is the same age as the AC - which it usually is, because they went in together. Ask for the price of doing both now versus each separately, because the gap is real money.
- Upstairs never cools no matter what you do - that is ducting or airflow. A bigger air conditioner will make it colder downstairs and no better upstairs.
Most of this city was built before air conditioning existed
Peoria's housing stock is old, and that is the single most useful fact for understanding why cooling behaves the way it does here. Homes built between roughly 1900 and 1960 were designed around radiators or early forced-air heat. Nobody allowed space in the walls for the duct sizes that cooling requires, because cooling was not a thing yet.
When central air arrived decades later, the ducts had to go somewhere - and in a great many Peoria houses, somewhere means the attic. An attic in July gets brutally hot, and a duct running through it that is neither sealed nor insulated gives up a substantial share of its cooling before that air ever reaches a bedroom.
- Weak or lukewarm air at the upstairs vents while downstairs is fine
- A bedroom door that pulls hard when the system runs, meaning there is no return path
- Duct in the attic that is bare, crushed, or wrapped in tape that has gone brittle
- A thermostat downstairs reporting satisfied while the bedrooms are ten degrees warmer
The complaint we hear most
Not "my AC is broken". It is "the upstairs never gets cold". The thermostat sits downstairs in the hallway, reads the temperature there, decides everything is fine and shuts the system off - while the bedrooms above are still ten degrees warmer.
That is not a failing air conditioner. It is cooling being lost in the attic and a thermostat measuring the wrong floor. Replacing the outdoor unit does nothing for it, which matters because that is frequently what gets quoted.
What actually fails, and what it costs
| What you notice | Most likely cause | Typical Peoria cost |
|---|---|---|
| Outdoor fan humming, not spinning | Run capacitor | $155-310 |
| Outdoor unit silent, indoor fan runs | Contactor | $145-290 |
| Upstairs never cools, downstairs fine | Attic duct losses / airflow | $400-2,200 |
| Weak cooling everywhere, worsening | Low refrigerant from a leak | $235-1,350 |
| Ice on the copper line | Airflow starvation or low charge | $0-1,350 |
| Nothing at all | Power, GFCI, or control fault | $0-290 |
Two free things to check first
- Pull the filter and hold it to a light. A blocked filter starves airflow, and starved airflow explains both weak cooling and frozen coils.
- Walk around the outdoor unit. If the fins are packed with cottonwood - and Peoria has plenty of it - the unit cannot dump heat. Power off at the disconnect, then rinse gently with a hose from the inside out.
Areas we cover
- Peoria
- Peoria Heights
- East Peoria
- Morton
- Washington
- Pekin
- Dunlap
Get a written quote for your system
Tell us the square footage, roughly how old the AC and furnace are, and whether any rooms never get comfortable. We will match you with a vetted Peoria-area contractor who quotes in writing. No charge for the match, no obligation, and we do not sell your details to four companies.
Or call (877) 701-2518
Common questions
Why is my AC running but not cooling?
In Peoria, first establish whether it is not cooling at all or only upstairs. If downstairs is fine and the bedrooms are hot, the cooling is being lost in attic ductwork and the equipment is probably healthy.
How long does an air conditioner last?
Manufacturers quote 15 to 20 years and a maintained system can reach 20 to 25. Neglect cuts it to 10 to 12 - and in older Peoria homes a system fighting leaky attic duct works harder than its age suggests.
How fast can someone get here during a heat wave?
Normally 2-4 hours across Peoria and East Peoria. During a genuine heat wave every company in the area is saturated and same-day becomes next-day.
Is it worth repairing a 15-year-old system?
It depends which part failed. A $155-310 capacitor on a 15-year-old unit is still worth doing. A $1,300-2,700 compressor on the same unit usually is not.
Do I need to be home for the AC repair?
Yes. The technician needs access to both the indoor air handler and the outdoor unit, and somebody has to authorise the work after the diagnosis.