How much does AC capacitor replacement cost?
Replacing an AC capacitor typically costs $150–$450 including the service call. The capacitor itself is only $15–$60 — most of the price is the diagnostic visit and labor, so it's often fixed on the spot during the first call.
Ranges are typical planning guides — actual price varies by region, access, materials and your local pro. Always get a written quote.
| Scenario | Typical cost | Notes |
|---|---|---|
| Standard run capacitor | $150–$300 | Part + service call |
| Dual run capacitor | $200–$400 | Serves compressor + fan |
| After-hours / emergency | $300–$450+ | Peak-summer surcharge |
| DIY part only | $15–$60 | If you know what you're doing |
What affects the price
The service call is the cost
The part is cheap; the $75–$150 trip fee plus diagnosis and labor make up most of the bill. Bundling it with a tune-up on the same visit is better value.
Single vs dual capacitor
Many condensers use a dual run capacitor serving both the compressor and fan motor — slightly pricier, but still a quick swap.
Timing
Capacitors fail in heat waves, exactly when every HVAC company is slammed. Emergency and weekend calls can double the price.
Pricing a job? Make a free quote or invoiceQuotesPad invoice & estimate maker — trade line items already loaded →FAQs
How much does AC capacitor replacement cost?
Typically $150–$450 including the service call and labor. The capacitor itself is only $15–$60 — you're mostly paying for the visit and diagnosis.
What are the signs of a bad AC capacitor?
The AC hums but won't start, the outdoor fan won't spin (or spins when pushed with a stick — don't), warm air, or a clicking sound at startup. A swollen, bulging top is a giveaway.
Can I replace an AC capacitor myself?
It's possible for the handy — the part is cheap and the swap is simple — but capacitors hold a charge even with power off and must be discharged safely. When in doubt, pay the $150–$300.