Greater London · Air conditioning servicing
Hendon air conditioning servicing
We cover Hendon for air conditioning servicing. Diagnosis first, a fixed price and proper paperwork when we finish.
- Error codes or flashing lights on the indoor unit
- A musty or damp smell when the unit starts
- Systems that haven’t been serviced for a while
Air conditioning servicing in Hendon
A service is not the same as a regas. Refrigerant runs in a sealed circuit and shouldn’t need adding to. If the performance checks point to a leak, we explain the options for finding and fixing it rather than just topping up. The work covers air-to-air heat pumps, ceiling cassettes and multi-split systems, and people most often call us about systems that haven’t been serviced for a while and a musty or damp smell when the unit starts.
In a London area like Hendon, many systems run hard in summer and for heating in winter, which is a good reason for a yearly service. Outdoor units on balconies and roofs pick up city dust and debris, which a service clears.
Some manufacturers make regular servicing by a qualified engineer a condition of their warranty. If that applies to your system, booking the service on time keeps the record straight and each visit is recorded.
- Place
- Hendon (NW4, NW9, NW2, NW11)
- Wider area
- Greater London
- Accreditations
- NICEIC and F-Gas
- Costs
- Yearly service from £95 + VAT
- Quotes
- A fixed-price quote up front
- Call
- 07833 053749
- Reviewed
- 30 October 2026
Hendon: your questions answered
How often do you service systems in Hendon?
For most homes, once a year. Check your manufacturer’s warranty terms too, as some of them make regular servicing a condition.
Do you cover Hendon for air conditioning servicing?
We do: Hendon falls inside our working area. Tell us a little about the job and we will take it from there.
Do I get paperwork after the visit?
Yes, always. A new system comes with commissioning details, F-Gas records and the manufacturer’s warranty information, and repairs and services get a record of the work.
How quickly will you reply?
We reply to enquiries the same working day. If it’s an emergency, ring the 24/7 line instead.
Does my air conditioning need an F-gas leak check?
It depends on the system’s tonnes of CO2 equivalent (tCO2e). From 5 to under 50 tCO2e, leak checks are required at least every 12 months, and from 50 to under 500 tCO2e every 6 months. Hermetically sealed systems holding less than 10 tCO2e don’t need them.
Will you work on another installer’s system?
Yes. We work on systems fitted by other installers as well as our own from all the leading brands. Send us the make and model, and any records you have.
Can you come out in an emergency?
Yes. If something urgent happens, like water coming from a unit or a critical room overheating, call our 24/7 line and we will tell you what to do first.
Owner checks or an engineer?
Owners can handle the everyday basics: keep the outdoor unit clear of leaves, plants and clutter, check the settings and the remote, and follow the cleaning the manual describes. Opening up the units, the electrics and the refrigerant circuit are a job for us.
Do not move, re-route or disconnect units or pipework yourself. Moving a unit involves the refrigerant circuit, so it needs an F-Gas qualified engineer, and the electrics need care too. If you need something moved, we can quote for it.
Aftercare tips
To keep the system working properly:
- Diary the next service before this one is forgotten
- Shut doors to the room so the system isn’t cooling the whole house
- Know your manufacturer’s servicing conditions
If you’d rather not keep track of service dates yourself, ask about a maintenance contract. The visits and the price are fixed with your quote so you don’t have to remember.
An annual service is the simplest routine to keep to, and more often if the system works hard or the rules require it.
Nearby places to Hendon
What else we do in Hendon
Air conditioning servicing around Hendon
The Valuation Office Agency’s council tax figures show about 45% of homes in the Hendon area date from 1919 to 1939, and about 59% of households live in flats, according to the 2021 Census. Outdoor units serving flats can be awkward to reach, so let us know where yours is. London outdoor units collect city dust and grime, so the outdoor coil gets particular attention on a service. There are 2 conservation areas within a mile of the centre of Hendon. About 19 listed entries lie within half a mile of central Hendon, Church Farmhouse Museum (grade II*) among them. If a repair turns into a replacement on a listed building or in a conservation area, we check the planning position before changing the outdoor unit.
Offices and shops near Hendon station can have their systems serviced without closing. Schools such as Hendon School can book servicing for half term or the summer break, when rooms are empty.
Hendon is about 3 miles north-west of Hampstead, in Greater London. If you need air conditioning servicing in Hendon, please phone us on 07833 053749 or drop us a line for a fixed-price quote. Our area covers London and the South East, Hendon included. Our Greater London coverage runs to 764 places, and Hendon is one of them. London, roughly 8 miles off, has its own page on this site.
The closest recent job we can point to from Hendon was on East Hill, Wandsworth (SW18), about 9 miles south: installing a Daikin wall-mounted unit in the open-plan living area.
That includes properties on Church Road, Station Road and Sydney Grove and the roads around them. Postcode districts we cover here: NW4, NW9, NW2 and NW11. Places around Hendon that are also on our list: The Burroughs (1 mile north-west), Brent Cross (1 mile south), Staples Corner (1 mile south), West Hendon (1 mile west) and The Hyde (1 mile west). Larger places within reach include London (8 miles south-east), City of Westminster (6 miles south-east), Marylebone (6 miles south-east) and Kensington (6 miles south).
Local landmarks in Hendon
In Hendon, that means homes and buildings near Hasmonean Primary School, The White Bear pub and Kisharon College. For rail, the closest station is Hendon station, about 0.7 miles south-west. Other landmarks nearby include Brent Cross Shopping Centre (0.5 miles south) and St Andrew's Hospital (1.6 miles south). Green spaces nearby include Darland's Lake and Parliament Hill.
What affects the cost of air conditioning servicing
The survey or diagnosis tells us what the work involves. The main factors are:
- The type of system, from a single split to a larger system
- The electrical supply and whether a new circuit is needed
- What state the existing equipment is in
Height, access and the distance between the indoor and outdoor units all affect the cost. Each of those is built into the quote and give you a fixed price before work begins.
Before you get in touch
What to send for a quote:
- Where the property is and what kind of building it is
- Photos showing the indoor unit and the space around it
- The outdoor side of the property, including any roof or flat area
For air conditioning servicing in Hendon, phone us on 07833 053749 or drop us a line. Let us know the type of property and what you need, plus some photos if they’re to hand. Enquiries get a reply the same working day.
The process
There’s very little for you to do on the day. Someone needs to let us in and show us the units, or where they’re going, and the rest is down to us. At the end, we tidy up and run through the work with you. Pictures of the space and the outside wall help us plan the work in Hendon.
- We book a time that suits you and confirm the price.
- We switch the system on and check it in operation.
- Then the cleaning: filters, coils, fan and the drain line.
- Electrical and refrigerant checks follow, including a leak check if the rules require one.
- We run the system again and leave you a service record.
Getting ready for the visit
- Find the manual or the paperwork for the system, if you have it
- Make sure we can reach the consumer unit or fuse board
- Clear a path to the units and the space around them
Getting a price
For a fixed-price quote, call 07833 053749 or write to us at info@aircondoctor.co.uk with the address and a few details about the rooms or units involved. Photos help a lot. We reply to enquiries the same working day.
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What a customer said
“Very professional from the initial survey through to installation. The engineer explained everything clearly and the quote was exactly what we paid. Would not hesitate to recommend AirCon Doctor.”
David W., Haywards Heath