Richmond and Twickenham are two of southwest London’s most desirable residential areas, with premium property values and strong demand for quality air conditioning installations. Here is the 2026 cost guide for both areas.
Typical Costs
| System Type | Typical Installed Cost |
|---|---|
| Single room (premium spec) | £1,500 – £2,600 |
| 2-3 room multi-split | £3,500 – £6,500 |
| Whole-house (4-6 rooms) | £7,000 – £15,000 |
| Annual service | £95 – £150 |
Richmond — UNESCO World Heritage Buffer Zone
Richmond’s position in the buffer zone of the Royal Botanic Gardens, Kew World Heritage Site means external works are subject to slightly more scrutiny than in standard residential areas. Properties in the Conservation Areas around Richmond Hill and Richmond Green — which include many Georgian and Victorian properties — require careful attention to external unit positioning. The premium property values in Richmond support the top end of our installation range — multi-room systems in large detached properties using premium brands.
Twickenham — Stadium and Residential
Twickenham Stadium — home of English rugby — brings significant commercial activity to the area, including hotels, restaurants and bars that require commercial air conditioning. The residential areas around St Margarets and Strawberry Hill have large Edwardian and Victorian properties where multi-room installations are common. The Eel Pie Island arts community represents an interesting niche of creative studio spaces requiring climate control.
Listed Buildings
Both Richmond and Twickenham have a high proportion of listed buildings — the Georgian terraces of Richmond Hill and Twickenham’s historic riverside properties. Listed building consent is required for external installations on these properties. We have experience of installations in both boroughs and understand the specific requirements of the London Borough of Richmond upon Thames conservation officers.
Call 07833 053749 or request a free survey in Richmond or Twickenham.