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Air Conditioning Servicing

How Often Should Air Conditioning Be Serviced?

Why air conditioning needs servicing, what a service includes, and how often to book one to keep your unit running at its best.

Updated 3 November 2026

Air conditioning works hard, and like anything that works hard, it needs looking after. A regular service keeps it running efficiently, catches problems early, and extends its life. Here's how often, and what's involved.

How often to service

Most units benefit from a service once a year. If you use it heavily — running it most days for both heating and cooling — an annual service keeps it at its best. A unit that's only used for a few weeks in summer can stretch a little longer, but once a year is the sensible default.

We keep a record of every service and remind you when the next one is due, so you don't have to remember. That's part of how we look after our customers.

What a service includes

A proper service is thorough. We clean the filters, coils and fins; check refrigerant levels, leaks and seal condition; check airflow; clean and tighten electrical connections; check thermostat accuracy; and carry out a general wear inspection.

It's not just a quick wipe of the filter. It's a full check of the things that keep the unit running efficiently and safely.

What a service catches

A service catches the problems that creep up on you: poor cooling, water leaks, and unusual noises. A drop in refrigerant, a perished seal, or a clogged coil all reduce performance and, left alone, turn into bigger issues.

Catching them early means a small fix now rather than a costly repair later. It also keeps the unit running efficiently, which keeps your running costs down.

Signs a service is due

If your unit isn't cooling as well as it used to, is making an unusual noise, or is leaking water, book a service. These are all signs something needs attention — and a service is the right place to start.

Even if it's running fine, an annual service is worth it. The filters and coils collect dust over time, and a clean unit runs noticeably better than one that's been left.

Why reminders matter

The best service is the one you don't have to remember to book. We keep a record of when your next service is due and send you a reminder, so the unit gets looked after without you having to think about it.

It's a small thing, but it's the difference between a unit that runs well for years and one that gets forgotten and fails early.

Common questions

How much does a service cost?

Ask for a price — we'll give you a clear cost for the service before we come out.

Can I service it myself?

You can and should clean the filter regularly — we show you how when we install it. But a full service involves refrigerant checks, electrical connections and thermostat calibration, which need a qualified engineer.

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  • Clear Price FirstFrom £1,450 inc. VAT, supplied and fitted. Free delivery.
  • Right First TimeFitted neatly in about a day, with a walkthrough before we leave.
  • Homes & BusinessesBedrooms, living rooms, offices, shops — fitted around your hours.
  • Servicing RemindersWe keep a record and remind you when the next service is due.

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