British Air Conditioners

Repairs · Homes & businesses

Air conditioning repair — fast diagnosis, fixed price

Unit not cooling, leaking, or making noise? Certified engineers diagnose the fault and give you a fixed price before any work starts.

F-Gas certifiedREFCOM registered£5m public liabilityFixed-price quotes
  • Fast response — most call-outs within 48 hours
  • Fixed-price repairs, no hourly surprises
  • Domestic and commercial systems
  • All major brands supported

Free quote

Get your free repair quote

Tell us what's wrong — we'll arrange an engineer

F-Gas Certified EngineersREFCOM Registered£5m Public LiabilityFixed-Price QuotesManufacturer Warranties
Authorised installerDaikinMitsubishi ElectricPanasonicREFCOM

48hr

Typical call-out time

Fixed

Price before work starts

All

Major brands supported

How a repair works

No call-out lottery. You know the price before an engineer touches your system.

1

Describe the fault

Not cooling, leaking, noisy, or showing an error code — tell us the symptoms and your postcode.

2

Engineer diagnosis

A certified engineer inspects the unit, checks refrigerant, electrics and drainage, and identifies the fault.

3

Fixed-price quote

You'll get a clear repair price before any work goes ahead — no hourly rate, no surprise add-ons.

4

Repair & test

We fix the fault, test the system under load, and leave you with a working unit and a written summary.

Repairs done properly, not patched over

Real diagnosis, not guesswork

We identify the actual fault — refrigerant leak, failed PCB, blocked drain — rather than swapping parts until something works.

Domestic and commercial cover

From a single bedroom split system to multi-unit office and retail installations, including F-Gas regulated refrigerant work.

Any brand, any age

Daikin, Mitsubishi Electric, Panasonic and most other major brands — even units we didn't originally install.

Honest advice on repair vs replace

If a unit is old or the repair cost approaches a new install, we'll tell you plainly rather than patch it repeatedly.

Common faults we fix

Units that won't cool, run constantly, trip the breaker, or display a fault code are usually refrigerant, electrical or sensor issues — all diagnosable on a single visit.

Engineer diagnosing an air conditioning unit fault
Engineer running diagnostics on a wall-mounted split system

Leaks and drainage issues

Water dripping from an indoor unit is almost always a blocked or disconnected condensate drain — straightforward to fix and a common cause of ceiling and wall damage if left.

Air conditioning unit leaking water from condensate drain
Condensate drain repair on an indoor unit

Frequently asked questions

How much does air conditioning repair cost?

Cost depends on the fault — a blocked drain or sensor issue is far cheaper than a refrigerant leak or failed compressor. We diagnose first and give you a fixed price before any work starts, so there's no surprise on the invoice.

Why has my air conditioner stopped cooling?

Common causes include low refrigerant from a leak, a dirty filter restricting airflow, a faulty compressor, or an outdoor unit that's blocked or iced up. An engineer can usually identify the cause on a single visit.

Why is my air conditioning unit leaking water?

This is almost always a blocked, disconnected, or poorly sloped condensate drain line. It's a common and usually inexpensive repair, but should be fixed quickly to avoid water damage to walls or ceilings.

Do you offer emergency or same-day repairs?

We prioritise units that have failed completely, especially for commercial sites like server rooms, restaurants, and offices. Tell us the urgency when you request a quote and we'll match you with the fastest available engineer.

Can you repair a unit you didn't install?

Yes. Our engineers work on most major brands and system types, whether we originally installed it or not.

Is it worth repairing an old unit or should I replace it?

If the unit is over 10 years old, uses an older refrigerant, or the repair cost is a large fraction of a new install, we'll tell you honestly so you can decide — we don't push repeat repairs on units past their economic life.

Don't let a small fault become a bigger one

Fast diagnosis, fixed price, certified engineers.

Request your free quote

Last updated by British Air Conditioners, Repair Team · 2026-06-30