Wall-mounted air conditioning in Chiswick

Wall-mounted air conditioning in Chiswick

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. A single wall-mounted unit is often all a bedroom or sunny living room in Chiswick needs.

In a semi or terrace in Chiswick, the indoor unit often goes on a back bedroom wall with the outdoor unit on a bracket below. We cover Chiswick as part of London, roughly 6 miles from central London. That includes the W4 postcode district.

Prices in Chiswick

Budget around £1,495–£3,895 per room including VAT for wall-mounted air conditioning in and around Chiswick. Prices here sit above the national middle, reflecting London labour rates and parking and access costs. What moves a quote in Chiswick up or down is mostly pipe length, how high the outdoor unit goes, and whether a new electrical circuit is needed. As an example, the Popular option (quieter mid-range unit with Wi-Fi control and better seasonal efficiency for a living room) would typically be £2,045–£2,845 here.

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%.

Planning and permissions

Since 29 May 2025, England's permitted development rules allow larger outdoor units (up to 1.5 m³) and no longer require a 1 m gap to the boundary, provided the MCS 020(a) noise check is met. Listed buildings and pitched-roof installs still need permission.

The survey

The free survey is where the real price is set: room measurements, pipe and drain routes, electrical checks and the outdoor unit position, all written into your quote. We book surveys in Chiswick at a time that suits you, including early evenings by arrangement, and send the written quote afterwards.

What is included

Here is what is included on every job in Chiswick:

• Handover of the remote, Wi-Fi app (where fitted) and filter cleaning
• Free site survey and room heat-gain check
• Insulated copper pipework, drain and interconnecting cable
• Nitrogen pressure test and deep vacuum before commissioning
• Core-drilled wall penetration and sealed sleeve

Nearby

We also cover Acton (1 mile), Barnes (1 mile) and Shepherds Bush (2 miles). See all services in Chiswick or wall-mounted air conditioning across London.

• Acton
• Barnes
• Shepherds Bush
• Notting Hill
• Fulham
• Putney