AC Maintenance in Granite City, IL
Air conditioners here run from May through September, so April is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Madison County will get in touch.
Tell us about the job
It takes about a minute.
Five months of running, then the storms on top of it
Your air conditioner runs from May through September here, with summer afternoons averaging 86°F. That's five months of the compressor and condenser fan motor cycling on and off to keep up, and the hours add up on the parts that start and stop the system, the capacitor and the contactor.
Madison County has also logged 40 hail events and 86 damaging wind events over the past ten years, with hailstones up to 3.75 inches. Your condenser sits outside through all of it. A tune-up checks the coil fins and cabinet for storm damage and confirms the refrigerant charge and electrical connections are sound before the next run of hot afternoons.
- 5 months
- May through September, your air conditioner is on duty
- 86°F
- the average summer afternoon it cools against
- 40 hail events
- in ten years, and hail bends the fins on outdoor coils
- 86 wind events
- in ten years, and wind drives debris into outdoor units

NOAA nClimDiv, 1991–2020 normals
Book your AC tune-up in April, before homes here start needing cooling in May.
- Jan
- Feb
- Mar
- Apr
- May
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- Dec
A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.
In Illinois, HVAC licensing for homes is left to the cities and towns.
Madison County itself does not run a licensing program for HVAC contractors, and Illinois leaves that decision to individual cities and towns rather than setting one statewide rule. So whether a contractor needs a local license to work here depends on the specific town or municipality the home sits in, and there is no state list or state exam behind the name on the truck.
For a maintenance visit on an air conditioner, the protection that does apply everywhere is federal. Any technician who connects gauges to the refrigerant lines or handles refrigerant in any way is required to hold EPA Section 608 certification, no matter what town the house is in. That certification is not a local license and does not mean the state or county tested the contractor, but it is the one credential that follows the work itself rather than the address.
Source: Illinois General Assembly
- What does AC maintenance include?
- A technician checks refrigerant levels, cleans the condenser coil, and tests the capacitor and contactor. They also check the blower motor, inspect the ductwork near the connections for leaks, and flush the condensate drain so it doesn't back up and trip the float switch. Outside, they clear leaves and debris from around the condenser unit so it can pull air through the coil. Each of these matters because a coil caked with dirt or a clogged drain line is how a small issue turns into a system that won't cool on a hot afternoon.
- How often does an air conditioner need maintenance?
- Once a year, before the cooling season starts. Homes here run their AC from May through September, so getting it checked beforehand means it's tested and ready before those five months arrive. A yearly check catches a weak capacitor or a low refrigerant charge before it fails on an afternoon that's pushing 86 degrees.
- Is AC maintenance worth it?
- Yes, because most AC breakdowns trace back to something a yearly check would have caught. A dirty coil, a failing capacitor, or a clogged condensate drain all get worse slowly, and they usually show a warning sign before the system quits outright. Catching that sign before the five months of cooling season start means the technician fixes it on their schedule instead of yours. It also means the unit isn't working harder than it has to all summer, which is what shortens its life.


