Greater London · Air conditioning installation
Air conditioning installation in Harlington
Air conditioning for Harlington and the surrounding area: diagnosis first, then a fixed-price quote, the work and written records. Call for a fixed-price quote.
- Too many options and no clear advice
- Old electric heaters you’d like to replace with something more efficient
- Bedrooms and offices that overheat in summer
Air con installers in Harlington
Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi are among the brands we fit. The survey ends with a recommendation and the reasons for it, along with the manufacturer’s warranty terms on your quote. For air conditioning in Harlington, one call covers the survey, the fixed-price quote, the installation and the F-Gas paperwork, wherever you are in Greater London.
In Harlington, as across London, the rooms that get hottest are typically under the roof or behind large sunny windows. Many people start with one wall-mounted unit in the room that suffers most, while a multi-split serves several rooms from one outdoor unit, which helps where outside space is limited.
Aftercare is simple, and most of it is in the manual: keep the outdoor unit clear, follow the manufacturer’s guidance on cleaning and book a service at the interval they recommend. That also helps where the warranty terms ask for regular servicing.
- Where
- Harlington (UB3, TW6, UB7)
- Wider area
- Greater London
- Guide price
- From £1,200 + VAT
- Enquiries
- On the working day you ask
- Quote
- Fixed-price quote after a site survey
- Credentials
- F-Gas certified company, NICEIC approved
- Phone
- 07833 053749
- Updated
- 30 October 2026
For landlords and property managers
When the building owner and the occupier are different, it’s worth checking the agreement for who looks after the system. We can quote either party and send the records to whoever needs them.
The F-gas rules share responsibility for leak checking between the equipment’s operator and the service technicians. Where a building is let or managed, the lease or contract should make clear who looks after the system and we are happy to deal with whoever it is.
Homes in Harlington and air conditioning
Valuation Office Agency council tax records date about 49% of homes in and around Harlington to the post-war years, 1945 to 1972. We check the wall construction on homes of that age, as it decides how the pipework goes through. In London, outdoor unit positions, building rules and access tend to need more planning than the install itself.
About 3.6 miles east stands Osterley House. Listed homes in any area need consent first, so tell us if yours is one. If your home is in one of the older streets near Church of St Peter and St Paul, it’s worth checking whether it’s listed or in a conservation area before an install.
Harlington is about 2 miles south-east of West Drayton, in Greater London. From the centre of Harlington to the outskirts, our engineers cover air conditioning, from a single room to a whole building. Count every place we list in Greater London and you reach 764, with Harlington on the list. London is in our area too, around 15 miles away.
Our nearest recent job to Harlington was on Church Street, Staines-upon-Thames (TW18), about 5 miles south-west: installing two LG wall-mounted units in the main office area and a single unit in the client meeting room. More about it
Our working area takes in UB3, TW6 and UB7. Streets in the area include New Road, Bath Road and Manor Lane, each of them within reach. Close to Harlington, our area also takes in Sipson (1 mile north-west), Hatton (1 mile south-east), Cranford (1 mile south-east), Heathrow (1 mile south-west) and Harmondsworth (2 miles west). Larger places within reach include London (15 miles east), City of Westminster (12 miles east), Marylebone (13 miles east) and Kensington (10 miles east).
Landmarks near Harlington
We fit and service air conditioning in homes and premises around The Red Lion pub, Harlington Community School and Lake Farm Country Park and the streets around them. The closest station to Harlington is Heathrow Terminals 2 & 3 Rail station, about 1.2 miles south-west of the centre. Nearby you’ll also find Harlington (0.6 miles north-west) and Treaty Centre (3.4 miles east). The countryside around Harlington includes Staines Reservoirs and Crane Meadows.
Keeping the system healthy
Aftercare is straightforward, and it helps at the next service:
- Close windows and doors while the system is cooling
- Use moderate settings for comfort and economy
- Keep the F-Gas records, commissioning details and warranty information together
We recommend an annual service, and some manufacturers make servicing a warranty condition. We’ll remind you when it’s due if you’d like.
Clean the filters regularly, not just at the service. Clean filters keep the air moving and help the system work as designed, which costs you more to run.
How the job changes from property to property
Wall-mounted split systems
A wall-mounted split is the most common choice for a single room. The indoor unit sits high on a wall, the outdoor unit goes outside, and the two are joined by insulated pipework, a cable and a condensate drain, routed as agreed on the survey.
Ducted systems
Ducted systems need space for the unit and the ductwork, and access for servicing. We check that on the survey before recommending one.
Common questions in Harlington
Can you fit air conditioning in a London flat in Harlington?
In many cases, yes, once the lease and the building’s rules are checked. We look at where the outdoor unit could go, such as a balcony, flat roof or rear wall, and write it up for the freeholder or agent.
Is Harlington in your area for air conditioning?
Yes. We work across London and the South East from our base in East Grinstead, and Harlington is part of that. Just give us a ring on 07833 053749, or email if that’s easier with a few details.
What size air conditioning unit do I need?
Floor area is only part of it. Windows, the direction the room faces, the roof above and the people and equipment in it all count, and we take them all into account on the survey.
Can I do any of the installation myself?
Anything that involves the refrigerant needs an F-Gas qualified engineer from a certified company. That’s the law, not just our preference, and it also matters for the manufacturer’s warranty. We can quote for the whole job, from supply to commissioning.
How long will the installation take?
It takes about a day for a single-room system, longer for multi-room and ducted systems. We confirm the time when we quote, so you can plan around it.
Can air conditioning heat my home as well?
Yes, most modern split systems run as heat pumps, so they heat as well as cool. The Energy Saving Trust notes that air-to-air heat pumps are sometimes referred to as air conditioning. Some cooling-only models exist, so we confirm it for the model on your quote.
Can we book visits on a schedule?
Yes. We offer maintenance contracts, with visits at the interval your system and the manufacturer need. Each visit is written up and F-Gas records kept where they apply.
Also near Harlington
More services for Harlington
How the visit works
Our engineers arrive at the time agreed with you and run through the plan before anything else. Dust sheets go down over floors and anything close to the work, and anything electrical is made safe before work starts. The work itself takes anything from a day for one room to several days for a multi-room or ducted system. A note on parking and access helps us plan a visit to Harlington.
- First the diagnosis: a survey of the rooms, the walls, the outside and the electrics.
- Next, a recommendation for each room and a fixed price.
- The treatment: units fitted, pipework and drain routed, and the electrics installed.
- Testing: the circuit is pressure tested and evacuated before the refrigerant is released.
- The sign-off: commissioning, a walk through the controls, and the F-Gas records and warranty details.
Getting ready for the visit
- Let us know if the building has a permit or sign-in process
- Have the make and model of any existing unit to hand
- Give us access to the outside wall, roof or yard where the outdoor unit sits
Getting a price
Our prices page gives typical ranges, but your quote is based on your job, because no two buildings, rooms or systems are the same. Once we’ve looked at the job, from pictures or on a survey, you get a fixed price. To start, give us a ring on 07833 053749 or write to us at info@aircondoctor.co.uk.
Related advice
What a customer said
“Office air con broke down in the July heatwave. Called at 8am, engineer was here by noon and fixed within 2 hours. Brilliant emergency response. They now hold the service contract for the whole building.”
James T., Crawley, office manager