Greater London · Air conditioning installation
Air Conditioning in Osterley
One call covers air conditioning installation in Osterley: diagnosis, fixed price, work and sign-off. F-Gas certified, NICEIC approved and Checkatrade members.
- A home office that warms up with screens and equipment
- Commercial rooms that are too warm for staff
- A loft conversion that is too warm to use
Air conditioning in Osterley, done properly
Most modern split systems run as heat pumps, so they can heat as well as cool. The Energy Saving Trust recognises that air-to-air heat pumps often go by the name air conditioning, and a well-chosen system can earn its keep all year round. Air conditioning installation in Osterley starts with a site survey, then a fixed-price quote that names the make and model.
The outdoor unit position is the biggest single decision: we balance airflow, noise, the pipe run and access for future servicing.
In a London area like Osterley, many of the homes we are asked about are flats, maisonettes and terraced houses. So the first questions are where the outdoor unit can sit, how the pipes get to it and whose permission is needed. In a flat, the lease and the freeholder typically come into it, so we write up the proposed positions for them to see.
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. It also keeps you on the right side of any warranty terms that ask for servicing.
- Place
- Osterley (TW7, TW3, TW5)
- Wider area
- Greater London
- Guide price
- One room: £1,200–£2,200 + VAT
- Credentials
- F-Gas certified, NICEIC approved
- Replies
- We reply the same working day
- Pricing
- Fixed after a survey or photos
- Telephone
- 07833 053749
- Last updated
- 30 October 2026
How it works
The visit goes in the diary at a time that works for you, and we let you know if plans need to move. On arrival, the engineer compares the job with the survey, your photos or the details you gave us. Anything unexpected is raised with you before we go further. From there, the work takes about a day for a single-room system, longer for multi-room and ducted systems. Send us a few phone pictures and we can often price a straightforward job in Osterley before visiting.
- First the diagnosis: a survey of the rooms, the walls, the outside and the electrics.
- Then the prescription: the right system and size for each room, on a fixed-price quote.
- Then the work: units up, pipes and drain run, and a new circuit where needed.
- 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.
Before we arrive
- Tell us about parking and loading
- Mention any roof access, ladders or high-level work
- Tell us about any building rules, permits or sign-in
Getting a price
Photos are the fastest route to a quote: the inside and outside of the property where the work is, plus the rating plate of any unit already there. Tell us the address and what you need, and simple jobs can often be priced without a visit.
Related advice
Also near Osterley
Also in Osterley
Osterley questions
Can I have air conditioning in a flat in Osterley?
Often, yes, but the lease and the freeholder normally have a say. Permitted development rules for flats are tighter than for houses, so we check the outdoor unit position and give you the details to send to the freeholder or managing agent.
Is Osterley in your area for air conditioning?
Yes, Osterley is within the area we cover. Tell us a little about the job and we will take it from there.
How do you size the system?
Sizing is done on the survey, room by room. Too small, and it runs flat out; too big, and it switches on and off and wastes energy, so we explain why we’ve chosen a particular output.
How soon will you get back to me?
You will hear from us the same working day. If it’s an emergency, ring the 24/7 line instead.
Can landlords and managing agents book you?
Yes. From one rented home to commercial buildings, the approach is the same: survey or diagnosis, a fixed price and proper paperwork.
Do you survey before quoting?
Yes. We always look before we price, on a survey, or from your photos and details where the job is simple. A fixed-price quote follows.
Can air conditioning heat my home as well?
Yes, most modern split systems run as heat pumps, so they can heat a room in winter. 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.
Homes in Osterley and air conditioning
About 53% of homes across Osterley and its surrounding area were built between the wars, according to Valuation Office Agency council tax records. We check the wall construction on homes of that age, as it decides how the pipework goes through. London installs often hinge on outside space, the lease and access to the building.
Plenty of people near Isleworth station split the week between the train and a spare room, and that spare room is often the first to get a unit. Homes near St Mary's Church are a good example of where we look up the heritage status of the building before fixing anything to it.
Osterley is about 1 mile north of Hounslow, in Greater London. Properties in Osterley get the same service as everywhere we cover: a look at the job first, a fixed-price quote and written records at the end. Our area takes in 764 places across Greater London, from busy centres to quieter spots. Our London page covers places nearby (11 miles or so).
Our nearest recent job to Osterley was on King Street, Twickenham (TW1), about 3 miles south: installing a Samsung VRF system serving the restaurant dining area, bar, private dining room and kitchen extraction area: seven indoor units in total. More about it
Work in TW7, TW3 and TW5 follows the same survey, fixed-price quote and written records as everywhere else we cover. Jersey Road, Church Road and Gresham Road and the roads off them are all inside our area. We also cover Spring Grove (1 mile south-east), Lampton (1 mile south-west), Norwood Green (1 mile north-west), Gillette Corner (1 mile east) and Woodlands (1 mile south). Further out, we also cover London (11 miles east), City of Westminster (9 miles east), Marylebone (9 miles east) and Kensington (6 miles east).
Around Osterley
Typical jobs here are in properties near The Plough Public House, Spring Grove Primary School and Inwood Park and the streets around them. Osterley’s nearest station is Isleworth station, roughly 0.9 miles south-east. Nearby you will also find Museum of Army Music (2.1 miles south) and West Middlesex University Hospital (1.3 miles south-east). Open spaces near Osterley include Castlebar Hill and Garden Lake.
When something else is needed
We’d rather tell you now than sell you work that won’t help, so here are the limits:
- Damp from leaks or a lack of ventilation
- Problems with a gas boiler or the radiators
- A lack of fresh air (most split systems recirculate room air rather than bringing fresh air in, which is a job for ventilation)
If in doubt, call 07833 053749 or write to us at info@aircondoctor.co.uk and we will say what we think before booking.
Where we work
- Wall-mounted split systems
- Multi-split systems
- Ducted systems
- VRF systems
- Ceiling cassettes
- Air-to-air heat pumps
Leave it or put it right?
The best time to plan air conditioning is before the hot weather, not during it. A rushed choice is often the wrong size or in the wrong place, which is costly to undo. Booking the survey early gives you time to weigh up the options. Consents in London blocks can take time, which is another reason to plan the job in Osterley early.
Typical ranges are on our prices page, but your price depends on the job in front of us. For a fixed-price quote, call us on 07833 053749 or fill in the contact form, and we will explain what it covers.
Why people in Osterley choose us
- Every job looked at before it’s priced
- Leading brands including Daikin, Mitsubishi Electric and Fujitsu
- A site survey and a fixed-price quote
- 24/7 emergency line for breakdowns
Read our cost guide and how to check a contractor.
Aftercare tips
Systems last better with the right care. We suggest:
- Keep the indoor unit’s filters clean
- Keep to the service interval the manufacturer recommends
- Use moderate settings for comfort and economy
An annual service keeps the system running efficiently, and some manufacturers make servicing a warranty condition. We can remind you when it’s due if you’d like.
Use sensible settings. Choose the right mode and a comfortable temperature rather than the lowest setting and keep doors and windows shut while it runs.
What a customer said
“Excellent service from start to finish. Two wall-mounted units installed in our home. Clean, tidy work: they protected all the floors and left no mess. The systems work brilliantly. Would highly recommend.”
Sarah M., East Grinstead