Wall-mounted air conditioning unit being fitted in a London home

How we price
air conditioning

Every figure on this page comes from the 26 quotations we issued in 2026. The number of rooms sets the base, five things move it, and nothing is added for where you are in London.

  • One room fitted from £2,400 to £3,200, VAT included
  • 25 metres of pipework included in every price
  • No travel, parking or congestion charge, anywhere

Accredited, and fitting the brands you know

NICEIC approved contractorGas Safe RegisterMCS certifiedRECC, Renewable Energy Consumer CodeTrustMark, Government Endorsed QualityVaillantClivetSamsungDaikinMitsubishi ElectricBosch

A single wall-mounted room costs £2,400 to £3,200 fitted, including VAT, and each extra room on the same outdoor unit adds about £1,900 to £2,600. The unit type, the room size, the property, the outdoor position and the pipe run are what move it from there.

The ranges are fitted to 26 real quotations Electro Heating Limited issued between July and September 2026, and the calculator on our prices page uses exactly the same figures.

The base price: how many rooms

The base is a straightforward job: wall-mounted units, the outdoor unit at ground level, a pipe run inside the 25 metres the price includes, and a house rather than a flat. Rooms after the first share one outdoor unit, which is why each one costs less than the first.

Base price by number of rooms, fitted, VAT included
RoomsFitted price
1 room£2,400 to £3,200
2 rooms£4,300 to £5,800
3 rooms£6,400 to £8,600
4 rooms£8,400 to £11,300

The five things that move it

Each line below is an adjustment on top of the base. Where it says per room, it is added for every indoor unit of that kind; the rest are added once for the whole job.

Adjustments on top of the base price
QuestionYour answerWhat it addsWhy
Which indoor unit?Wall-mountedNothing addedThe standard answer
Ceiling cassette+£500 to £900 per roomNeeds a ceiling void
Concealed ducted+£900 to £1,500 per roomGrilles only, unit hidden
Floor standing+£150 to £350 per roomWhere a wall will not take one
How big is the main room?Small bedroom or officeNothing addedUp to 14 sq m, 2.5kW
Double bedroom+£150 to £300 per room14 to 22 sq m, 3.5kW
Living room+£350 to £650 per room22 to 35 sq m, 5kW
Open plan+£700 to £1,200 per room35 sq m and up, 7kW
What is the property?Semi or detachedNothing addedUsually the easiest
Terraced+£0 to £250Access through the house
Loft conversion+£150 to £450High level work
Flat+£200 to £700Consent pack included
Where does the outdoor unit go?Ground levelNothing addedOn slabs or feet
On a wall+£250 to £600Brackets and anti-vibration mounts
Flat roof+£300 to £750Frame and load spreading
Not sure yet+£0 to £600We work it out on the survey
How far is the outdoor unit from the rooms, all runs added up?Under 25 metresNothing addedIncluded, nothing added
25 to 40 metres+£150 to £450Up to 15 m at £30
40 to 75 metres+£450 to £1,500A whole house, spread out
Not sure+£0 to £900Measured on the survey

Extras we only add when the job needs them

None of these is in the base price, and none is added unless the survey shows it is needed. The fuse board is the one most new installations do need, which is why it is listed first.

Extras, added once per job when needed
ExtraCostWhen it applies
Dedicated fuse board for the system£350Most new installs need one. Not in the price above
Consumer unit has no spare way£450 to £850A board replacement, not the fuse board above
Remove an old system£180 to £350Includes refrigerant recovery
Condensate pump, per indoor unit£150Rarely needed on an external wall
Scaffold or tower access£480 to £540Above first floor with no safe ladder position
Box in the pipework and make good£180 to £600Where a surface run is not acceptable

What is always included

  • The survey, which is free, with no deposit and nothing to sign.
  • 25 metres of pipework. After that it is 30 pounds a metre, charged only for what is actually installed.
  • Travel, parking and the congestion charge, wherever you are in London.
  • A written, itemised fixed price with the make and model of every unit, valid for 30 days.

Four real quotations, and where they land

These are the four systems the price curve is fitted to. They are real quotations from 2026, shown without any customer detail.

Anchor quotations behind the price model
SystemQuoted
1 room, Samsung WindFree 2.5 kW£2,793
3 rooms, Daikin Stylish, two 3.5 kW and one 2.5 kW£8,391
5 rooms, Samsung, three 2 kW, one 3.5 kW and one 5 kW£11,772
5 rooms, Daikin Prefera, five 2.5 kW£11,332

The two five-room jobs rose to £14,332 and £13,572 once condensate pumps and a long pipe run were added, which is exactly what the extras and the pipe adjustment above are for.

Where our price sits

Honestly, at the upper end of the London market for a single room. Several published London ranges start lower. The difference is what the price includes: 25 metres of pipework, no travel or congestion charge, and a fixed figure after a free survey rather than a low number that grows on the day. If a cheaper quote leaves those out, compare like with like before you decide.

Servicing and repair

Servicing and repair rates, plus VAT
WorkPrice
Annual service, first indoor unit£95 plus VAT
Each extra indoor unit on the same visit£55 plus VAT
Fault diagnosis, waived if we do the repair£89 plus VAT
Typical repair£120 to £700 plus VAT
Compressor replacement£900 to £1,600 plus VAT

Before you compare quotes

Our guide to choosing an air conditioning installer in London lists what a quotation should always state, so two prices can be compared fairly. What a free survey involves is on the survey page.

Questions about our prices

Is VAT included in the installation prices?

Yes. Every installation figure on this page includes VAT at 20 per cent, because that is what you actually pay. Air conditioning is not on the energy saving materials list, so the zero rate that applies to heat pumps and solar does not apply to it.

The servicing and repair rates further down are the other way round: they are quoted plus VAT, exactly as the owner set them.

Do you charge for travel, parking or the congestion charge?

No, anywhere we work. All of our 2026 quotations were re-read for it and not one carries a travel, mileage, parking or congestion charge line, including the ones inside the congestion zone and south of the river.

Why can you not give me an exact price online?

Because three things only a visit can settle move the price: how far the pipe run really is, where the outdoor unit can legally and practically go, and whether the consumer unit has room for another circuit. The calculator gives you the honest range for your answers. The survey turns it into one written number.

Will the price change after the survey?

Only if you change the job. The written price lists the make and model of every unit, the metres of pipework and what is included and excluded, and it is valid for 30 days.

Is there a grant for air conditioning?

Since 2026 the Boiler Upgrade Scheme also lists 2,500 pounds towards an air-to-air heat pump, which is what an air conditioner is. It is not the same as the 7,500 pound grant for an air-to-water heat pump and the conditions are narrower: it depends on what is being replaced, on the property having a valid EPC, and on an MCS certified installation. We will check whether your property qualifies and tell you either way, and we will not put a grant in a quotation until it is confirmed. The current rules are on GOV.UK.

Turn the range into one written number

A free survey, then a fixed, itemised price valid for 30 days. It only changes if you change the job.

Monday to Friday 9am to 7pm, Saturday 10am to 3pm, Sunday closed

What can we help with?

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