Split systems and multi-room setups supplied and installed by an F-Gas certified engineer. Cools in summer, heats in winter — one system that works all year. Free survey, no-obligation quote.
UK law requires anyone handling refrigerant to hold a personal F-Gas qualification, and the business to hold a company F-Gas certificate. Service Heat & Cool holds both. That means the person who surveys your property, selects your unit and installs your system is the same certified engineer — not a sub-contractor hired in to sign off the refrigerant work.
The F-Gas certificate number is publicly verifiable. It is a legal requirement for refrigerant handling — not an optional extra. Any quote from an uncertified installer is not compliant with UK regulations, and any unit they fit will carry no valid manufacturer warranty.
Every modern split system is a reverse-cycle heat pump. It delivers cooling in summer and heating in winter — typically producing three to four units of heat for every unit of electricity used. Many Swindon homeowners use them as primary heating for rooms that are hard to reach with central heating: garden offices, loft rooms, extensions and garages.
The right choice depends on how many rooms you want to cool, how the property is built and how much disruption you want. Here are the most common options for Swindon homes.
One wall-mounted indoor unit connected to one outdoor compressor. The most popular choice for a bedroom, living room, home office or converted space. Quiet, efficient and installed in a single day. Typical installed cost in Swindon in 2026 is £1,500 to £3,000 including the unit, pipework and commissioning.
Multiple indoor units connected to a single outdoor compressor. More cost-effective than fitting separate single splits in each room, because the outdoor unit — which is roughly a third of the total install cost — is shared. A two-room setup typically costs £2,800 to £4,500; three or four rooms from £3,500 to £7,000. Each indoor unit is controlled independently.
A single-room split system is often the best solution for a garden office, studio or workshop. These spaces heat up quickly and are difficult to cool through conventional means. A dedicated system keeps the space comfortable year-round and can be the deciding factor between an outbuilding that gets used and one that does not.
Loft rooms and new extensions are often poorly served by existing central heating and very exposed to solar gain in summer. A split system addresses both problems and avoids the disruption and cost of extending the central heating pipework. Installation into a loft conversion is usually straightforward since there is direct access to the roof for the pipe run.
Based on 2026 UK installation prices, a single-room split system in Swindon typically costs between £1,500 and £3,000 fully installed. That figure includes the indoor wall-mounted unit, the outdoor compressor, copper refrigerant pipework, full commissioning and the F-Gas certificate for the installation.
The main factors that move the price up or down are: the brand and capacity of unit selected, the distance between the indoor and outdoor components, and how complex the pipe run is. An installation into a first-floor room directly above the outdoor unit is straightforward; one that requires running pipe around obstacles or through multiple walls costs more. A site survey establishes this before any price is given.
Want a quicker steer on cost before booking a visit? Fill out the quote form with your rough room size, the number of rooms and whether you need heating as well as cooling — and we will come back to you as soon as possible with a ballpark figure.
Samsung, Clivet, Mitsubishi Electric, Daikin and LG units are used, selected for efficiency, reliability and parts availability. All units are inverter-driven — they vary their output to maintain the target temperature rather than cycling on and off, which significantly reduces running costs compared to older on/off technology.
Running costs are typically £30–£90 per summer for a single room at 2026 electricity rates — substantially lower than portable alternatives.
Covering Swindon (SN1–SN6), Wroughton, Highworth, Purton, Royal Wootton Bassett and surrounding Wiltshire villages.
Most domestic air conditioning installations in England are permitted development — meaning no planning permission is required. There are exceptions worth knowing about.
Standard homes that are not listed and not in a conservation area can install a wall-mounted split system as permitted development. The outdoor unit must not be on a wall or roof facing a highway, and only one unit is permitted per dwelling under permitted development rules.
If your property is in a Swindon conservation area or is a listed building, permitted development rights do not apply and you will need to apply for planning permission before installation. This is confirmed at the survey visit — worth checking before you book a survey if you are unsure.
Tenants can install a permanent split system with the landlord’s written consent. Without it, installation cannot go ahead. Landlords considering a system for their rental property are welcome — the installation can be combined with a Gas Safety Certificate visit if the property has a gas boiler.
A single-room split system: £1,500–£3,000 installed. A two-room multi-split: £2,800–£4,500. Three to four rooms: £3,500–£7,000. All figures include unit, pipework and F-Gas commissioning. A survey is required before quoting.
Yes. All modern split systems are reverse-cycle heat pumps. They heat at three to four times the efficiency of a conventional electric heater, which makes them cost-effective to run through winter in rooms that the central heating does not reach well.
A single-room system is usually completed in one day. A two or three-room multi-split system typically takes two days. A precise timescale is given after the site survey.
The installer does, yes — not you. UK law requires any engineer handling refrigerant to be F-Gas certified. Service Heat & Cool holds F-Gas certificate FGAS3029925. An uncertified installation is illegal and voids the manufacturer warranty.
Most standard homes do not. Listed buildings and conservation areas are exceptions. This is confirmed at the survey. Swindon has several conservation areas — worth checking if you are unsure of your property’s status.
Samsung, Clivet, Mitsubishi Electric, Daikin and LG. Brand and model are selected at survey stage based on room size, usage and access. All are inverter-driven for efficiency.
