Air conditioning in London

Air conditioning installation in London

London summers can make a top-floor flat or a loft bedroom hard to sleep in, and an office full of people and screens hard to work in. We install, service and repair air conditioning across Greater London, from a single wall-mounted unit in a bedroom to multi-split systems for a whole flat, ducted and cassette units for offices, and VRF systems for larger buildings.

We’re based in East Grinstead, West Sussex, and we work across all of London’s boroughs and the City. We’re an F-Gas certified company, NICEIC approved for the electrical side of the job, and MCS certified for heat pumps. We fit leading brands, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic and Toshiba, and we’ll explain the manufacturer’s warranty for the unit you choose on your quote.

Every job follows the same steps. We look at the property first, on a site survey or from your photos and measurements for simpler jobs. You get a fixed-price quote. We install, repair or service the system, then commission it, record the refrigerant details for your F-Gas records and show you how to use it. A single-room split system is typically £1,200–£2,200 + VAT, supplied and fitted; our prices page has the other ranges.

Already have a system that isn’t cooling, is leaking water or shows a fault code? Our repair service covers all makes, with diagnosis from £75 + VAT, and our 24/7 line is there for emergency breakdowns.

Heat, flats and tight spaces

Cities hold on to heat. The Greater London Authority publishes maps of London’s urban heat island on the London Datastore, made with a London set-up of the Met Office’s weather model. They show the city running warmer than the countryside around it. That matters most at night: brick, concrete and roads give back the day’s heat after dark, and a bedroom that never cools down is the most common reason Londoners call us.

Much of London lives in flats, and flats shape the install. The outdoor unit needs a home: a balcony, a flat roof, a rear wall, a lightwell or a yard. The pipework between the indoor and outdoor units has length and height limits set by the manufacturer, so we plan the route on the survey and tell you if a spot won’t work. Condensate water has to drain away safely, by gravity where possible or with a small condensate pump where it can’t. We also think about the neighbours: an outdoor unit under someone’s bedroom window is a poor choice even when it’s allowed.

Victorian and Edwardian terraces bring their own choices. Solid brick walls need core drilling for the pipes. A rear extension with a flat roof is often the neatest place for the outdoor unit. On a front elevation, we keep pipework out of sight wherever we can, or run it in trunking painted to match.

Most split systems also heat. The Energy Saving Trust notes that air-to-air heat pumps are sometimes referred to as air conditioning, and a modern unit in heat mode can take the chill off a room in spring and autumn without the central heating. If you want a system for heating as well as cooling, tell us on the survey, because it changes how we size it. Our guide to air conditioning in flats goes into more detail.

Choosing the indoor unit matters as much in a small London room as the outdoor one. A wall-mounted unit is the usual choice and the easiest to service. A floor console suits a room with a low window or a sloping ceiling. In a loft conversion with space in the eaves, a slim ducted unit can feed small grilles so nothing hangs on the wall at all. In a bedroom, we also look at where the airflow lands, so it cools the room without blowing straight onto the bed, and we show you the quiet night mode most units have.

Our services in London

• Air conditioning installation (from £1,200 + VAT): Air conditioning designed, supplied and installed for your home or business, with a site survey, a fixed-price quote, F-Gas certified engineers and full commissioning.
• Air conditioning repair (from £75 + VAT call-out): Air conditioning faults diagnosed and repaired by F-Gas certified engineers, with the cause explained and a fixed price agreed before the repair goes ahead.
• Air conditioning servicing (from £95 + VAT): Annual air conditioning servicing that cleans, checks and tests the whole system, with F-Gas leak checks recorded where the rules require them.
• Commercial air conditioning (commercial systems priced after survey): Commercial air conditioning designed, installed and maintained for offices, shops, restaurants, hotels, schools, surgeries and server rooms, with the F-gas paperwork kept in order.
• Heat pump installation (£8,000–£16,000 (0% VAT on homes), before the grant): Air source heat pumps designed and installed by an MCS certified installer, with a heat loss survey, a fixed-price quote and the Boiler Upgrade Scheme grant applied for on your behalf.

We also offer 24/7 emergency repair, regas, air-to-air heat pumps, ventilation and MVHR, TM44 inspections, air con hire and maintenance contracts.

Around London

From the centre, the nearest railway station is Elephant & Castle station. Well-known places nearby include Gabriel's Wharf (0.8 miles north-west), Surrey Dispensary (less than half a mile south-east) and Museum of Life Sciences (less than half a mile north-east). Homes and businesses we cover around the centre include those near places such as Charles Dickens Primary School, Ark Globe Academy, London School of Musical Theatre and St George the Martyr. Green spaces within reach include Bellenden Road Nature Garden and Tower Hill.