Servicing and repair
Air conditioning servicing and repair in London.
A serviced air conditioner stays quiet, uses less electricity and lasts longer. Ours or anyone else's, we keep wall mounted systems healthy right across London, from a base in Harrow and Stanmore.
Air conditioning installation across London. Based in Harrow and Stanmore.
Filters and coils
Filters cleaned or replaced, coils washed, and the drain cleared so the unit breathes and drains the way it should.
Refrigerant checks
Pressures and temperatures checked by F-Gas Category 1 qualified engineers, with any refrigerant work done properly and recorded.
Performance testing
Air on and air off temperatures measured in both cooling and heating, so you know the unit is doing its job.
Fault finding and repair
Sensors, boards, fans, pumps and leaks diagnosed and repaired, with the cost agreed before the work is done.
Any brand, not just ours
We service and repair systems we did not install, including Daikin, Samsung and Mitsubishi Heavy Industries wall units.
Certified and insured
A REFCOM certified company, fully insured, working to the standard your warranty expects.
What servicing costs.
Starting prices, agreed before any work. Multiple units on one visit keep the cost per unit down.
One off service
From£150
For the first unit, then £50 per extra unit.
Care plan
From£12
Per month for the first unit, then £6 per month per extra unit.
REFCOM certified company. F-Gas Category 1 qualified. Daikin registered installer. Fully insured. Stainless steel visible fixings as standard.
What a service visit is.
A service is not a look and a wipe. It is a routine, done in the same order every time, and it takes about an hour for a single wall unit. This is the routine.
- Filters out, washed or replaced, and the housing cleaned behind them
- Indoor coil and blower wheel cleaned, which is where most of the lost airflow hides
- Drain pan and condensate line cleared and flushed, because a blocked drain is the most common cause of water appearing indoors
- Outdoor coil washed down and the fan checked for debris
- Refrigerant pressures and temperatures read and compared against what the unit should be doing
- Electrical connections checked for heat damage and tightness
- Air on and air off temperatures measured in cooling and in heating
- Findings written down, including anything that is fine now but worth watching
How often it wants doing.
Once a year is the usual answer for a domestic wall unit in a London home, and the best month for it is spring, before the first hot week rather than during it. A unit in a room that runs most of the year, or one in a dusty environment, is better on six months.
Manufacturer warranties generally set out a servicing interval and generally expect it to have been kept to. It is worth reading yours, because a warranty claim on an unserviced unit is a harder conversation than it needs to be.
A service is also the cheapest form of fault finding there is. Most of the repairs we get called out for started as something visible on a service visit a season earlier.
Refrigerant, and who is allowed to touch it.
Anything that involves breaking into the refrigerant circuit has to be done by a certificated engineer, and the company doing it has to be registered. Ours are F-Gas Category 1 qualified and NVK Air is a REFCOM certified company, number REF1025662.
That matters more than it sounds. Topping up a system without finding out where the gas went is not a repair, it is a way of paying for the same fault twice. We look for the leak first and tell you what we find.
What the symptom usually means.
Describing the fault well on the phone saves a visit surprisingly often. Here is what people tell us, and what it tends to turn out to be. None of it is a diagnosis without seeing the unit, but it will tell you whether you are looking at a clean or a repair.
It runs but the room stays warm
Most often a dirty filter or a fouled indoor coil choking the airflow, sometimes a low refrigerant charge from a slow leak. Both are found in the same fifteen minutes, and only one of them is a repair.
Water dripping from the indoor unit
Nearly always the condensate drain rather than the refrigerant circuit. A gravity drain that has silted up, or a pump that has stopped. Turn it off and call, because water and electrics in the same box is the one symptom worth acting on quickly.
Ice on the pipework
A sign that something upstream is wrong, usually airflow or charge. Running it iced up is how a compressor gets damaged, so it is worth switching off rather than persevering.
A smell when it starts
Damp sitting on the coil and in the drain pan, which is a cleaning job rather than a repair. It is the single most common reason people book a first service.
Louder than it used to be
Outdoors, usually debris in the fan or a mounting that has worked loose. Indoors, usually a blower wheel with a season of dust on it. Neither gets better on its own.
An error code on the remote
The codes are manufacturer specific and they narrow the search a long way. Read it out on the phone and we can usually tell you whether it is a visit or a reset before anybody travels.
We work on systems we did not install as readily as ones we did, across London and out to the Hertfordshire border towns. If you have inherited a unit with a house and have no idea when it was last touched, a first service is the sensible starting point, and it will tell you what you have got. Whatever we find is priced before any repair work goes ahead. See the areas we cover.
Servicing and repair
Tell us what it is doing.
Describe the unit and the symptom, or just ask for a service. The cost is agreed before any work starts.