Dorking sits in the Surrey Hills, and its homes reflect it: period cottages in the town centre, Victorian and Edwardian villas on the slopes around it, interwar semis, and village houses tucked under Box Hill and Leith Hill. Air conditioning in Dorking is rarely difficult to fit — the skill is in fitting it so it doesn't look out of place.
Tell us which rooms you want cooled and we'll arrange a free survey. We size each room properly, check where the outdoor unit and pipework can go, and give you one fixed written price covering everything — no day rates and no surprises on fitting day.
Want a fixed price for your Dorking home? The survey is free and there's no obligation.
Get your free quoteWhat we install in Dorking
Most of what we fit is a wall-mounted split system: an indoor unit on the wall, a compact outdoor unit outside, and a small pipe between them. Almost every modern split is an air-to-air heat pump that heats as well as cools.
- Home air conditioning for bedrooms. Usually a 2.5kW unit; the quietest models, such as the Daikin Perfera, are barely audible at night.
- Living rooms and kitchen-diners, typically 3.5kW to 5kW, sized for rooms with a lot of glass.
- Loft conversions and top-floor rooms, which get very warm and usually need a bigger unit than their floor area suggests.
- Garden offices, extensions and conservatories — where a heat pump gives you cooling in summer and efficient heating in winter from the same unit.
- Multi-split systems, two to five indoor units from one outdoor unit, for larger homes.
We fit leading brands including Daikin, Mitsubishi Electric and Fujitsu, and recommend whichever suits the room and your budget.
What air conditioning installation costs in Dorking
- One room: £1,800 to £2,600 for a 2.5kW split, or £2,200 to £3,000 for a 3.5kW.
- Two rooms on a multi-split: £3,500 to £5,000.
- Three rooms: £4,800 to £6,500.
Prices are supplied and fitted, including VAT. In Dorking the biggest variables are where the outdoor unit can go, the length of the pipe run in older houses, and whether the property is in a conservation area. We check them all at the survey and include them in one fixed written figure. See the full installation cost guide for the detail.
Planning: conservation areas and Article 4 streets
For most Dorking houses the outdoor unit is permitted development, provided it meets the conditions on size, siting and noise set out in the Planning Portal's air conditioning guidance. Dorking is a place where it pays to check, though. Mole Valley District Council has 26 conservation areas, and some streets in Dorking and Brockham have Article 4 Directions — extra controls that can bring changes to the outside of a house under planning control. Much of the district also lies within the Surrey Hills National Landscape.
The council's My Mole Valley map shows which of these apply to your address. We check it as part of every survey in Dorking, and if consent is needed we position the outdoor unit and the pipework so the application is straightforward.
Period cottage or listed home? We'll plan the outdoor unit so it stays out of sight.
Book a free surveyDorking's homes, street by street
The town centre and the older streets
Around the High Street, West Street and South Street the houses are older and often attached, with solid walls and little side access. The outdoor unit usually goes on a rear wall or a flat roof over a back extension, and we run the pipework so it isn't seen from the street.
Suburbs and newer estates
The twentieth-century streets around the town and the newer developments are usually the simplest installations: cavity walls, garden space for the outdoor unit at ground level, and short pipe runs — typically a one-day job for a single room.
The villages
Brockham, Betchworth, Westcott, Mickleham, North Holmwood, Capel and Ockley have more detached houses and period cottages. Larger homes here are where multi-split systems make sense, and the priority is usually a low-profile outdoor unit placed well away from the neighbours and out of view.
Air conditioning servicing and repairs in Dorking
An annual air conditioning service from around £90 keeps your system efficient and the manufacturer warranty valid. We repair all the major brands, including systems fitted by other companies — call us and we'll tell you honestly how soon we can reach you.
Why Kelvara in Dorking
We survey before we price. A figure given over the phone without seeing the property is a guess, and guesses get revised upwards once the engineer is standing in the room.
Careful with period homes. We plan where the outdoor unit and pipework go before anything is fitted, so it looks like it belongs.
F-Gas qualified engineers on every job, with the manufacturer warranty registered for you.
Questions
Air conditioning in Dorking — common questions
How much does air conditioning cost in Dorking?
Roughly £1,800 to £2,600 for a single-room split system supplied and fitted, £3,500 to £5,000 for two rooms on a multi-split and £4,800 to £6,500 for three. After a free survey we give you one fixed written price covering everything.
Will I need planning permission in Dorking?
Usually not for a house, as the outdoor unit normally falls under permitted development. Mole Valley has 26 conservation areas, and some streets in Dorking and Brockham have extra Article 4 controls, which can bring work that's normally allowed under planning control. The council's My Mole Valley map shows whether your property is affected, and we check it at the survey before anything is ordered.
Do you cover the villages around Dorking?
Yes — Brockham, Betchworth, Westcott, Mickleham, Westhumble, North and South Holmwood, Beare Green, Capel, Ockley, Newdigate, Coldharbour and the rest of Mole Valley. If you're not sure we cover your address, ask.
How long does an installation take?
A single wall-mounted system is usually one day. A multi-split serving two or three rooms typically takes two to three days, mostly because of the pipe runs. Older cottages with solid walls can add time, which we'll tell you about at the survey.
Can it heat my home as well?
Yes. Almost every modern split system is an air-to-air heat pump, so it heats in winter as well as cooling in summer, far more efficiently than electric heaters. Many Dorking customers use one to heat a loft, an extension or a garden office the central heating doesn't reach.

