Free tool · 2026

Air Conditioning Servicing 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 Read the servicing cost guide

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Keeps warranty validLeak check includedAnnual, before summer100% free · no sign-up

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Price your AC service in 30 seconds

4 steps. System type, number of heads, deep clean and region.

Method

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. If you would rather fix the cost, our maintenance contract guide compares annual plans against pay-per-visit.

On F-Gas: anything touching the refrigerant circuit legally requires an F-Gas certified engineer. Every engineer Air Con Surrey matches you with is vetted and F-Gas certified — but it is still worth asking to see the certificate before work starts.

2026 costs

Air conditioning service cost (2026)

Per visit, domestic systems. The calculator scales by heads, deep clean and region.

System	Typical 2026 cost	Notes
Single split (1 head)	£75–£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
Annual domestic contract	£150–£300	Usually one visit plus priority call-out
Missed service	Warranty at risk	Most manufacturers require documented annual servicing

Figures match our air con servicing cost guide. Refrigerant work is legally restricted to F-Gas certified engineers.

FAQs

AC service calculator FAQs

What does an air conditioning service include?+

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.

Does skipping a service void the warranty?+

Usually yes. The major manufacturers require documented annual servicing to keep a 5–7 year warranty valid, so keep every invoice and report.

How often should a home system be serviced?+

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.

Does the engineer have to be F-Gas certified?+

For anything touching the refrigerant circuit, yes — it is a legal requirement. Every engineer we match you with is vetted and F-Gas certified.

How much does an air conditioning service cost in 2026?+

Typically £75–£150 per unit per visit for a single domestic split, £150–£300 for a multi-split with two to four heads, and £250–£500 for a ducted or VRF system. Annual domestic contracts run roughly £150–£300.

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