Air Conditioning Service Cost Calculator
An annual service keeps the manufacturer warranty valid and catches a slow refrigerant leak before it becomes a compressor failure. This prices it.
Open the calculator →Price your AC service in 30 seconds
4 steps. System type, number of heads, deep clean and region.
How this calculator works
Servicing is priced by time on site, and time follows the number of indoor heads — each one has filters, a coil and a condensate drain to clean and test. That is why a four-head multi-split costs roughly double a single split rather than four times as much: the outdoor unit and the paperwork are done once.
The reason to bother is not just airflow. A refrigerant pressure check catches a slow leak while it is still a leak; left alone it starves the compressor, which is the one failure that usually writes off the unit.
On F-Gas: anything touching the refrigerant circuit legally requires an F-Gas registered engineer. Ask to see the registration and verify it on the register itself.
Air conditioning service cost (2026)
| System | Typical 2026 cost | Notes |
|---|---|---|
| Single split (1 head) | £80–£150 | Annual, 1–2 hours on site |
| Multi-split (2–4 heads) | £150–£300 | Annual, 2–3 hours on site |
| Ducted / VRF | £250–£500 | Annual, sometimes 6-monthly, half a day |
| Deep clean / sanitise | +£60–£150 per head | Every 2–3 years |
| Missed service | Warranty at risk | Most brands require documented annual servicing |
Figures match our AC servicing cost guide. Refrigerant work is legally restricted to F-Gas registered engineers — check the register yourself.
AC service calculator FAQs
Filter clean or replacement, coil and drain-pan clean, condensate drain check, refrigerant pressure check for leaks, electrical connections, and a performance test on both cooling and heating.
Usually yes. The major brands require documented annual servicing to keep a 5–7 year warranty valid, so keep every invoice and report.
Once a year for a domestic split, ideally in spring before the first hot spell. Ducted and VRF systems, and anything coastal or dusty, may want six-monthly attention.
For anything touching the refrigerant circuit, yes — it is a legal requirement. Ask to see it and check it on the register before booking.
Related cost guides
- AC servicing guide — what a service actually includes
- Repair costs — priced by fault
- All AC costs — every system type side by side
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