Air conditioning repair in London

Often a refrigerant leak or an outdoor unit fault, and sometimes simply a filter clogged badly enough to choke the airflow. A faulty temperature sensor can also make the unit ease off before the room has cooled. We rule out the simple causes before assuming the worst.

Nearly always the condensate drain — either blocked or not falling correctly — rather than anything to do with the refrigerant. Once we can actually see the drain run, it is usually a quick job to put right.

The outdoor fan can keep turning while the compressor, the part that does the actual cooling, fails to start. Low refrigerant or a badly blocked filter can look much the same. Tell us whether the outdoor fan is spinning and whether a code is showing.

Yes. Parts for older or less common makes can take longer to track down, and if that applies to yours we will say so when we price the repair.

That depends on where the leak sits and how easy the pipework is to reach. We locate and confirm the leak before quoting for the repair, never the reverse.

Not if it is leaking, icing up, tripping the electrics or making a new grinding noise — running it with a fault like that tends to make the repair bigger. If it is simply cooling less well than it used to, it is usually fine to use until the visit.