Air Conditioning Hounslow | Installation and Repair

Finished jobs nearest Hounslow

Our own installations, the closest to Hounslow first, photographed on the day. Tap one for the full story.

Roof-mounted solar array in Brentford TW8

Solar TW8 Brentford Roof-mounted solar array Panels on a flat roof carried on tilted frames rather than laid flat, which is what brings a London flat roof close to the yield of a south-facing pitch. View the project

Heat pump TW9 Richmond Air source heat pump Flow and return brought up the wall as one insulated pair in a single clipped run, which is the difference between pipework that looks designed and pipework that looks added. View the project

Vaillant aroTHERM plus air source heat pump in West Ealing W13

Heat pump W13 West Ealing Vaillant aroTHERM plus air source heat pump An aroTHERM plus on a poured pad against the boundary fence, with the drain point brought out through the pad so the defrost water has somewhere to go. View the project

Bosch air source heat pump in Kingston upon Thames KT1

Heat pump KT1 Kingston upon Thames Bosch air source heat pump Installed on a flat roof on a raised frame, so the roof covering carries no point load and rainwater still runs freely underneath. View the project

Samsung air source heat pump in Walton-on-Thames KT12

Heat pump KT12 Walton-on-Thames Samsung air source heat pump Sited round the corner from the conservatory glazing rather than beside it, because a fan discharging at glass is the most common cause of a noise complaint about a unit that is running perfectly. View the project

Vaillant twin-fan air source heat pump in Wimbledon SW19

Heat pump SW19 Wimbledon Vaillant twin-fan air source heat pump A larger twin-fan machine raised onto a brick plinth, which lifts the coil clear of leaf litter and puts the fans above the level a low fence would reflect. View the project

Samsung air source heat pump in Epsom KT19

Heat pump KT19 Epsom Samsung air source heat pump Set into a planted border on a hard base, far enough off the wall for the service access the manufacturer asks for and close enough that the pipe run stays short. View the project

Samsung monobloc air source heat pump in Camden NW1

Heat pump NW1 Camden Samsung monobloc air source heat pump Levelled on packers on an existing tiled patio rather than bolted through it, so the tiling stays intact and the unit still sits dead flat. View the project

Air conditioning installation in Hounslow costs 2,400 to 3,200 pounds for a single room, fitted and including VAT, and takes one day on site.

Hounslow, Cranford and Isleworth sit under the Heathrow approach, which keeps a lot of windows shut on hot nights, and our solar job in the projects is in Brentford, TW8, on a flat roof with ballasted frames so nothing went through the membrane.

Read the full guide: 5 sections, about 3 minutes

The housing stock in Hounslow, and what it means for the job

Hounslow runs from some of the most sought-after streets in west London to some of the most ordinary, and the job changes with it. Chiswick is Victorian and Edwardian houses and mansion flats, Bedford Park and Strand-on-the-Green among them, with real conservation control. Brentford and Isleworth are river frontage now mostly new flats, with Victorian terraces behind. Hounslow, Heston, Cranford and Feltham are interwar semis and terraces, and a lot of them. 54 per cent of homes in the borough are houses, and away from Chiswick most of them have a garden and a side or rear position that makes the job simple.

The typical Hounslow installation

A typical Hounslow job is an interwar semi in Heston or Feltham with one or two rooms on a ground-level outdoor unit, done in a day or two. In Chiswick it is more often a period flat and a consent pack.

What it costs here

Installed prices, Hounslow
Job	System	Installed price
One bedroom	2.5kW single split	£2,400 to £3,200
Double bedroom	3.5kW single split	£2,550 to £3,500
One room in a flat	Consent pack included	£2,600 to £3,900
Two rooms	2 unit multi-split	£4,300 to £5,800
Three rooms	3 unit multi-split	£6,400 to £8,600
Heat pump, three bedroom house	After the £7,500 grant	£5,700 to £8,700
Annual service	Any make	£95 plus VAT

Every figure on this site is an estimate built from the quotations we issued in 2026 and our own installation experience. It is not a quotation. The price you are given after the free survey is the price you pay.

Permission in Hounslow

Parts of Hounslow are inside conservation areas and parts are not, so the answer genuinely depends on the street rather than on the borough. Outside a conservation area, a house installation that meets the Class G conditions needs no application at all. Inside one, the unit cannot face a highway. We look the street up against the council's boundary map and any Article 4 direction before we quote.

What the housing in Hounslow means for permission

Hounslow is close to evenly split: 54 per cent houses and 46 per cent flats. Most of our domestic work here is on houses and needs no planning application, provided it meets the Class G conditions. The flats, 37 per cent of homes in purpose-built blocks and 7 per cent in conversions, are the jobs that need a consent pack and a longer programme. The most common home in Hounslow is a flat in a purpose-built block, 37 per cent, which usually means a managing agent, a licence for alterations and a plant position the building decides. By share of houses it is in the upper half of the 21 boroughs we cover north of the Thames.

How the Hounslow housing stock breaks down, and what each type means for a job
Home type	Share of Hounslow	What it means here
Detached	5%	The easiest, with a choice of elevations
Semi-detached	29%	Usually a side return, the best position there is
Terraced	21%	No side access, so the rear or a bracket
Purpose-built flat	37%	A large share here. Planning permission and freeholder consent, both
Converted flat	7%	Two permissions, usually a smaller freeholder

Shares of the 102,961 households counted in Hounslow at the 2021 Census, table TS044, rounded. Percentages do not total 100 because homes in commercial buildings and temporary structures are counted separately.

Everything we fit in Hounslow

Air conditioning is most of what we fit in Hounslow. The same engineers fit heat pumps with the 7,500 pound grant, solar panels and batteries, and service any make.

Air conditioning outdoor unit mounted on brackets above a London brick wall

From 2,400 pounds fitted

Split air conditioning

One room or the whole house. Domestic and commercial.

See what it costs

Air to water heat pump installed beside a London house

From 5,000 pounds after the grant

Air source heat pumps

Replaces the gas boiler. We take the 7,500 pound grant off your invoice.

Price my heat pump

Wall mounted indoor unit with the filter cover open during a service

From 95 pounds

Servicing and repair

Book a service

Grilles only, unit hidden

Ducted air conditioning

The unit sits in the ceiling void. Only the grilles show.

How it is fitted

From 3,900 pounds

Solar panels

Get a roof survey

Heat pump controls and cylinder pipework in a London plant space

From 4,500 pounds

Battery storage

See if it pays

Inside Hounslow, in more detail

These districts have a page of their own, with a finished installation from that postcode and what the local housing means for the job.

Brentford TW8

A job we finished there, the housing stock and the price.

An outdoor air conditioning unit we fitted on brackets on a London rear wall

Your estimate

£2,400to£3,200

Supplied, fitted, commissioned and certificated. Includes VAT.

Send this on WhatsApp

Price it for your address

The same model the rest of the site uses. Tell us the postcode and the survey turns it into one fixed written price.

How many rooms?

1 roomOne indoor unit 2 roomsSharing one outdoor unit 3 roomsUsually two outdoor units 4 or moreOr the whole house

How big is the room?

Up to 14 sq mSmall bedroom or office, 2.5kW 14 to 22 sq mDouble bedroom, 3.5kW 22 to 35 sq mLiving room, 5kW 35 sq m and upOpen plan, 7kW

Last step: where do we send your written price?

Name Phone Email Postcode Address

Every figure on this site is an estimate built from the quotations we issued in 2026 and our own installation experience. It is not a quotation. The price you are given after the free survey is the price you pay.

Air conditioning in Hounslow: common questions

How much does air conditioning cost in Hounslow?

2,400 to 3,200 pounds for a single room across Hounslow, with the Chiswick conservation-area jobs at the top of it. A two-room system on one outdoor unit is typically 4,300 to 5,800 pounds, and three rooms 6,400 to 8,600 pounds.

Every price includes the units, installation, commissioning, electrical work and VAT. The fixed price comes after a free survey. There is a full breakdown on the cost page.

Do I need planning permission for air conditioning in Hounslow?

Most likely not. 54 per cent of homes in Hounslow are houses, and a house installation meeting the Class G conditions is permitted development.

The section further down this page sets out what the housing stock here means in practice, and every condition is on the planning permission page. We check the conservation area boundary, any Article 4 direction and the listed building register for your exact address before quoting.

How quickly can you get to Hounslow?

Forty five minutes to an hour from N14. Chiswick and Brentford are the quicker end, off the A406 and the M4. For a survey we usually offer something within 48 hours, and for a fault call we will tell you the day we can genuinely attend rather than promising one we cannot keep.

Do you install in flats in Hounslow?

Yes. 46 per cent of homes in Hounslow are flats, 37 per cent of them purpose-built and 7 per cent conversions, so it is a large share of what we do here. It takes two permissions rather than one: the freeholder's written consent and planning permission from the council.

We prepare the licence pack the managing agent will ask for at no charge, including the drawing, the sound data and the insurance. The order the two permissions are done in is what decides whether it is expensive, and there is a full sequence on the leasehold flats page.

Do you service and repair existing systems in Hounslow?

Yes, any make and any age, including systems installed by companies no longer trading. An annual service is 95 pounds plus VAT and a fault diagnosis is 89 pounds plus VAT, waived if we do the repair the same day. See servicing and repairs.