Air Conditioning Installation in London by Future Home Energy

Yes. Modern systems are air-to-air heat pumps, which means they run in reverse to heat a room as efficiently as they cool it. For every 1kW of electricity they use, they typically move 3–4kW of heat, so they can be a genuinely cheap way to heat a room in spring and autumn without firing up the whole central heating system.

For most London homes, no. Since 29 May 2025 a single outdoor unit normally falls under permitted development, it may sit within a metre of your boundary, and the size cap on a house is 1.5 cubic metres, with two units allowed on a detached property. Flats are capped at 0.6 cubic metres. In a conservation area permitted development still applies, but the unit must not go on a wall or roof fronting a highway or nearer to a bounding highway than the building itself. Listed buildings need consent. We check your property's exact status during the survey and handle any application if one is needed.

A single-room system is normally a one-day job. Multi-room systems take two to three days. The work involves mounting the indoor unit, siting the outdoor condenser, and running a small refrigerant pipe between the two, which usually means one core drill through an external wall. We sheet up, work clean, and tidy fully before we leave.

Once a year. An annual service keeps the filters clean, checks the refrigerant charge, and keeps the system running at its rated efficiency. A neglected unit quietly costs more to run and fails sooner. It’s also normally a condition of keeping the manufacturer warranty valid. We offer annual servicing alongside our boiler service plans.

A single room split system is usually fitted in one day. Multi-room systems take two to three days. That covers mounting the indoor unit, siting the condenser, running and pressure-testing the refrigerant pipework, and commissioning the system before we leave.

Often yes, but the outdoor condenser is the deciding factor. It needs a wall, balcony, flat roof or ground position with airflow around it. If you are a leaseholder you will usually need the freeholder’s written consent before the unit goes on the building, and some leases rule it out entirely. We check the position and the pipework route at the survey and tell you what consent you need before you commit.

On an external wall, a balcony, a flat roof or at ground level, wherever it can breathe and where the pipework run to the indoor unit stays short. Shorter runs are more efficient and cheaper to install. We confirm the exact position and route at the survey, so the fixed price already accounts for it.

Less than people expect, because a modern split system is a heat pump. It moves heat rather than generating it, which is why the same unit heats your home in winter as well as cooling it in summer. What it actually costs depends on the size of the system, how well the room holds temperature and your electricity tariff, so we will give you a realistic figure for your property rather than a headline number.