AC Maintenance in Madison, WI
Air conditioners here run from June through August, so May is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Dane County will get in touch.
Tell us about the job
It takes about a minute.
Three months of hard running, then months of sitting idle
Your air conditioner only earns its keep here from June through August, with summer afternoons averaging 81°F. It runs hard for those three months, then sits unused the rest of the year. A tune-up checks whether the unit that sat idle is ready to start back up and run through that heat without trouble.
Dane County also sees real hail and wind, 140 hail events and 128 damaging wind events recorded over the past ten years, with hailstones as large as 2.5 inches. Part of a tune-up is looking over the condenser coil and cabinet for dents from weather like that, before summer asks the unit to work.
- 3 months
- June through August, your air conditioner is on duty
- 81°F
- the average summer afternoon it cools against
- 140 hail events
- in ten years, and hail bends the fins on outdoor coils
- 128 wind events
- in ten years, and wind drives debris into outdoor units
NOAA nClimDiv, 1991–2020 normals
Book your AC tune-up in May, before homes here start needing cooling in June.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.
Wisconsin requires contractors to register with the state.
Registration puts a contractor's business on file with the Department of Safety and Professional Services. Nobody tested their work to get there. The state records that the business exists, not what the crew knows about an air conditioner. Wisconsin also keeps this the same everywhere. Counties and cities cannot add their own HVAC license on top of it, so the rule in Dane County is the same rule anywhere else in the state.
For a maintenance visit, the credential that actually matters is federal. Checking the refrigerant charge or servicing the coil means opening the refrigerant side of the system, and anyone who does that has to hold EPA Section 608 certification. That rule holds in Wisconsin the same as it holds in every other state. Wisconsin's registration confirms the business is on file. It says nothing about who is qualified to work on the machine itself.
Sources: Wisconsin Legislative Reference Bureau · Wisconsin Department of Safety and Professional Services
- What does AC maintenance include?
- A technician cleans the condenser coil outside and checks the refrigerant charge against what the system calls for. They check the capacitor and contactor, since these wear out and cause no-start problems more than most other parts. They test the condensate drain to make sure it's not clogged, since a blocked drain can back up and cause water damage. They also check the thermostat is calling for cooling correctly and the system is pulling down temperature the way it should.
- How often does an air conditioner need maintenance?
- Once a year, in spring before the cooling season starts. Here that means getting it done before June, since the system runs hard through summer once the afternoons start hitting 81 degrees. A yearly check catches a weak capacitor or a low charge before the first hot week, not during it.
- Is AC maintenance worth it?
- Yes, because most breakdowns trace back to something small that maintenance would have caught, like a failing capacitor or a coil caked with dirt. Cooling season here only runs three months, June through August, so the system sits idle most of the year and problems can go unnoticed until the first hot day it's asked to work hard. A yearly check means it starts that stretch working the way it should.