Every spring, ads promise a "$49 tune-up" while the company down the road quotes $189 for what sounds like the same visit. Both can be telling the truth — the label covers everything from a 15-minute filter swap to a genuine hour-long inspection with meter readings. The price only makes sense once you know which one you're buying.
| Service | Typical price | What you usually get |
|---|---|---|
| Discounted "special" tune-up | $49–$99 | A shortened check, often subsidized as a way to sell repairs |
| Full one-time tune-up | $100–$200 | The complete task list below, with readings reported to you |
| Annual maintenance plan (2 visits) | $150–$400 per year | Spring AC + fall heating visit, priority scheduling, repair discounts of 10–15% |
| Each additional system | +$50–$100 per visit | Same checks on a second air handler or condenser |
Regional labor rates move these numbers the way they move every trade. Expect the top of the range in coastal metros and the bottom in the Midwest and Southeast. A heat pump usually prices the same as a central AC for a single visit; a plan costs a bit more because both visits include a full heating-mode check.
Two one-off tune-ups a year at $125 each come to $250. A $200–$300 plan that bundles both visits, a waived diagnostic fee, and 10–15% off repairs beats that math for most households — if the plan's visits are full tune-ups and not the discounted kind. The catch is commitment. Plans auto-renew, and the discount only pays off if the company stays in business and you'd actually have booked both visits anyway.
One-off visits make more sense if you're selling the house within a year, your system is under a home warranty that already dispatches its own techs, or you simply want to test a company before signing anything recurring. Either way, pair the visit with the homeowner tasks in our HVAC maintenance checklist — filter changes and drain flushes between visits are what keep a tune-up from turning into a repair list.
A full tune-up is a defined set of tasks, and a good company will hand you the checklist with readings filled in. Expect most of these:
If the tech is gone in 20 minutes and can't tell you a single number — no pressures, no temperature split, no capacitor reading — you bought the discounted version, whatever you paid. A system that's suddenly louder than last summer or icing up on the refrigerant lines also deserves a mention at booking, since either symptom changes what the tech tests first.
Some add-ons are real work at fair prices. A replacement filter beyond the basic size runs $10–$40. A capacitor that's testing weak is a $150–$300 repair worth doing before it strands you in July. Coil cleaning with chemicals on a genuinely matted outdoor unit may add $75–$150. Those are defensible line items when the tech shows you the reading or the photo.
The red flags look different:
Book in the shoulder season. March–April and September–October are when companies discount to keep crews busy. The same visit costs more — and books out further — during the first heat wave.
Ask for the task list before the visit. "What exactly does your tune-up include?" separates the $79 inspection from the $79 sales call in one question.
Get findings in writing, with numbers. Pressures, capacitor microfarads, temperature split. Written readings let you get a second opinion without paying for a second diagnosis.
Approve repairs separately. A tune-up price should never quietly become a $900 ticket. Agree that any repair beyond the visit gets quoted and approved first.
Budget $100–$200 for a real one-time tune-up, or $150–$400 a year for a plan that bundles two full visits. Judge the visit by the task list and the readings you're handed, not the sticker price — the cheapest tune-up is the one that finds the weak capacitor in April instead of the dead compressor in July.
Most homeowners pay $100–$150 for a full one-time tune-up, inside a typical range of $75–$200. Discounted specials run $49–$99 but usually cover a shorter check. Annual plans that bundle two visits cost $150–$400 per year.
Usually, if you'd book both the spring and fall visits anyway. Two separate visits often total more than the plan price, and plans typically add priority scheduling during heat waves plus 10–15% off repairs. Skip it if you're moving within the year or your home warranty already covers service visits.
A full tune-up takes 45–90 minutes for one system. A tech who finishes in 15–20 minutes has done a visual once-over, not the measured inspection — no refrigerant readings, no capacitor test, no temperature split.
Small problems stay invisible until they're big ones: a weakening capacitor, a slow drain clog, a dirty coil quietly raising your power bill. Some manufacturers also ask for proof of regular maintenance on warranty claims, so skipped years can complicate an expensive repair later.
Early spring, before the first heat wave — roughly March or April in most of the country. Companies run their best pricing in that shoulder window, and if the visit turns up a repair, you're getting it done before the July rush, not during it.