Which towns in London do you cover?

All of London, including Islington, Westminster, Bexley and Barking. Each town has its own page below with local details.

Air conditioning for flats and apartments in London

Air conditioning for flats and apartments across London

In Westminster apartment blocks, the freeholder's consent is usually the first thing to sort out. Balcony-mounted outdoor units are often the neatest solution for flats in Westminster. In London, heat soaks into brick and concrete during the day and comes back out at night, which is when it is hardest to sleep.

Prices in London

Air conditioning for flats and apartments in London typically comes in at £1,795–£7,845 per flat, one room to the whole flat including VAT, based on London rates. London is one of the dearer parts of the UK for trades, which shows in the range. What moves a quote in London up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. On our London figures, the Two rooms option (twin multi-split for living room and main bedroom) is about £3,495–£5,195.

Single room

£1,795–£2,545

inc VAT, London guide

One wall unit with a balcony outdoor unit.

Balanced choice

Two rooms

£3,495–£5,195

inc VAT, London guide

Twin multi-split for living room and main bedroom.

Whole flat

£4,795–£7,845

inc VAT, London guide

Three or four rooms on one outdoor unit, concealed routes.

Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.

Consent and planning for flats

Flats need more care: get your freeholder's written consent first, and expect the planning rules for a block of flats in London to be stricter than for a house. In England, permitted development allows one outdoor unit of up to 0.6 m³ on a block of flats; anything more needs planning permission.

The survey

On a survey in London the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows. At the survey we look at how each room is used, where the sun hits it and how the pipes can reach the outside wall, then put it all in a written quote.

What is included

Included with air conditioning for flats and apartments across London:

Protection of common areas
Documents for the managing agent
Pressure test, vacuum and commissioning
Single or multi-split system
Outdoor unit position agreed with the freeholder
Free survey and lease and consent checklist

Districts in London

Pick your district for local details, or see every service in London.

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FAQ

Air conditioning for flats and apartments in London

Which parts of London do you cover?

All of London, including Islington, Westminster, Bexley and Barking. Each district has its own page below with local details.

How much does air conditioning for flats and apartments cost in London?

Our London guide range is £1,795–£7,845 per flat, one room to the whole flat, including VAT.

Will the outdoor unit need planning permission in London?

Most houses can have an outdoor unit under permitted development if it meets the size, number and MCS 020(a) noise conditions. Flats and listed buildings usually need permission or consent. We check on survey.

Is the survey free?

Yes, for new installations on the mainland. The survey and written quote are free and there is no obligation.

Is a portable unit an alternative?

Portable units avoid the outdoor unit but are noisy, less efficient and vent hot air through a window. A fixed split is far more effective if you can get consent.

Do I need my freeholder's permission?

Almost always for anything fixed outside or through an external wall. We can supply drawings and product data for the request.

Next step

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