Air Conditioning Installation in Farnham
Looking for air conditioning installers in Farnham? We match you with vetted, F-Gas certified engineers who survey, quote and fit split, multi-split and ducted systems across Farnham and Surrey — free, with no obligation.
What installing air conditioning in Farnham involves
Installers here spend a lot of time on garden offices and annexes at detached homes, and on carefully routed single splits in period properties where the condenser must sit out of sight. Most Farnham homes are fitted with a wall-mounted split system — one indoor unit per room, one outdoor unit on an external wall or the ground — while larger properties and open-plan layouts suit a multi-split or a concealed ducted system.
Farnham's Georgian town centre is ringed by very different neighbourhoods. Hale and Heath End have tight rows of Victorian and inter-war terraces and semis, Wrecclesham and Rowledge offer village housing with larger gardens, and The Bourne and the lanes towards Tilford contain substantial detached homes, many with outbuildings and annexes. Newer estates have appeared at Badshot Lea and on former MoD land. Older solid-walled houses in the centre heat up quickly and have limited scope for discreet pipe runs.
A good installer starts with a site survey: room sizes and glazing (to size the unit in kW), where the outdoor unit can sit within planning limits, the pipe run, the condensate drain and the electrical supply. Expect a written, itemised quote before any work starts, and an F-Gas logbook and manufacturer warranty registration at handover.
Conservation note: Farnham's Georgian centre is a large conservation area with many listed buildings; external units normally need careful siting and may need consent.
Looking for something else? Servicing in Farnham · Repairs in Farnham.
Installation costs in Farnham (2026)
| Job | Indicative cost | Notes |
|---|---|---|
| Single wall-mounted split, one room | £1,500–£3,000 | 2.5–3.5 kW; typical £1,800–£2,500 fitted |
| Multi-split, 2 rooms | £2,800–£5,000 | One outdoor unit, two indoor units |
| Multi-split, 3 rooms | £4,500–£7,500 | One outdoor unit, three indoor units |
| Ducted / whole-house | £7,000–£15,000+ | Concealed; best during renovation or loft conversion |
| Annual service (after install) | £75–£150 per unit | Keeps the warranty valid |
Surrey pricing sits toward the upper-middle of UK ranges; longer pipe runs, scaffolding, or a ground-level outdoor unit behind the house move a quote up or down. Every figure above is an indicative range — your quotes will be specific to the rooms and the building. See the national installation guide for the full breakdown.
Areas we cover around Farnham
In and around Farnham
- Wrecclesham
- Hale
- Heath End
- Rowledge
- Badshot Lea
- Weybourne
- Upper Hale
- The Bourne
Farnham installation FAQs
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