How much does an AC tune-up cost in Denver, CO?

A single AC tune-up in Denver, CO typically costs $75–$200. Annual maintenance plans covering both the AC and furnace visits run $150–$350 a year. A real tune-up includes coil cleaning, a refrigerant-level check, drain-line clearing, and electrical testing — if the 'tune-up' is a 15-minute filter swap and an upsell pitch, it wasn't one.

What you can check yourself

• Ask what's included before booking: coils, drain line, refrigerant check, and capacitor/contactor testing should all be named.
• Book in spring or fall — tune-ups are cheaper and techs aren't rushed in the shoulder seasons.
• Keep the filter changed monthly during heavy use; no tune-up compensates for a choked filter.
• Be skeptical of parts 'about to fail' without a measurement — ask for the reading (capacitor microfarads, refrigerant pressures) in writing.

Typical cost

Typical in Denver, CO: single tune-up $75–$200; combined heating + cooling plan $150–$350/year. Legitimate repairs found during a tune-up (capacitor $150–$350) are priced separately.

When to call a pro

A tune-up is maintenance, not repair — if your system already isn't cooling, book a diagnostic instead; tune-up pricing often excludes troubleshooting.

Get free quotes from Denver, CO pros →

Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.