Sussex Air Conditioning installs conservatory air conditioning systems for homes across East Sussex and West Sussex. A modern air conditioning unit for your conservatory provides year-round comfort – cooling your space in summer and heating it efficiently through winter – making it genuinely usable as a room for twelve months of the year rather than just a few weeks.
Conservatories present a unique heating and cooling challenge that standard domestic air conditioning is not always well suited to. The glass roof and walls create extreme seasonal temperature swings – far beyond what a typical room experiences. In summer, a south-facing conservatory can reach 40°C or higher, making it unusable without active cooling. In winter, the same space loses heat rapidly through the glass, leaving it cold and draughty.
A conservatory cooling system specified for these conditions takes into account the solar gain through the glazing, the volume of the space, and whether the conservatory is used as a living room, dining room, home office, or occasional space. Getting the specification right is what separates a system that genuinely solves the problem from one that struggles on the hottest and coldest days.
This is why we carry out a free site survey for every conservatory air conditioning installation – assessing your conservatory’s orientation, glazing type, size, and how you use it before recommending a unit or system.
We supply and install a range of conservatory air conditioning units and systems to suit different conservatory types, sizes, and budgets. All systems we install carry A++ energy ratings as a minimum, keeping running costs as low as possible.
The most widely installed conservatory air conditioning unit. A compact indoor head unit mounts high on the wall and connects to a small external unit via discreet pipework. Wall-mounted systems are quiet, efficient, and suitable for the majority of domestic conservatories. They provide both cooling in summer and efficient heating in winter, functioning as a reverse-cycle heat pump. A modern inverter split system running in heating mode delivers 4 to 5kW of heat for every 1kW of electricity consumed – far more efficient than an electric radiator or a gas radiator extension.
Where wall mounting is not practical – for example in conservatories with limited solid wall area, or where the conservatory wall adjoins the main house with no suitable external surface – floor-mounted conservatory air conditioning units provide an effective alternative. Floor-standing units can be mounted on a dwarf wall as low as 600mm. Pipework is run neatly through the wall to the external unit with no exposed services on the outside of the property.
For larger conservatories or homes where air conditioning installation is wanted in more than one room, a multi-split system connects multiple indoor units to a single outdoor unit. This keeps the exterior of the property tidy and is particularly suitable for properties where outdoor space or planning considerations limit the number of external units permitted.
Every conservatory air conditioning installation begins with a free site survey. Our engineers visit your property to assess the conservatory’s dimensions, orientation, glazing specification, and your usage requirements. We use this to calculate the correct system capacity – typically 220W per square metre for a standard conservatory, rising to 300W per square metre where the conservatory is exposed to extreme solar gain.
Installation is carried out with minimum disruption to your home. Interconnecting pipework, cables, and the condensate drain are run through the conservatory wall to the external unit and finished with neat white trunking where required. For floor-mounted systems, the trunking is often not required at all. Most domestic conservatory installations are completed within a day.
All our installations are carried out by F-Gas certified engineers and covered by a five-year workmanship warranty and a three-year manufacturer warranty on all parts. We also offer service and maintenance plans – with a maintenance plan in place, the labour warranty extends to three years.
The cost of conservatory air conditioning installation in Sussex depends on the size of the conservatory, the type of system specified, and the complexity of the installation. A typical domestic conservatory air conditioning installation for a standard-size single room conservatory starts from approximately £1,400 to £2,200 fully installed. Larger conservatories, multi-split systems, and more complex installations will carry higher costs.
We provide full written quotations following a free site survey with no obligation. There is no charge for the survey and no pressure to proceed.
One cost point worth noting: the government applies 5% VAT (reduced rate) to domestic air conditioning installations under the energy-saving products rules, rather than the standard 20% rate. This applies to all domestic conservatory air conditioning installations we carry out.
Replacing a conservatory roof with a solid insulated roof is heavily advertised as a way to improve conservatory comfort. It addresses heat retention in winter but does not solve overheating in summer – a fully insulated solid roof conservatory can still reach uncomfortably high temperatures during warm weather without active cooling. The cost of a solid roof replacement typically runs from £5,000 to £15,000 depending on size and specification.
A conservatory air conditioning unit addresses both problems – overheating in summer and heat loss in winter – for a fraction of the cost of a roof replacement, without the disruption of a major building project. Many homeowners who have had a solid roof fitted subsequently add air conditioning for the summer cooling it does not provide.
Modern conservatory air conditioning units do more than control temperature. They continuously filter and circulate the air in the conservatory, removing dust, pollen, and airborne particles. For people who use the conservatory as a living or working space, this is a meaningful benefit – particularly for those with allergies, hay fever, or respiratory conditions such as asthma.
Humidity control is also a genuine benefit for conservatories specifically. Conservatories are prone to condensation and moisture build-up, which can lead to mould growth on frames and soft furnishings over time. A well-specified air conditioning system manages humidity alongside temperature, reducing condensation during the colder months.
We install conservatory air conditioning systems throughout Sussex. Our domestic installation service covers:
Yes. All modern split air conditioning systems operate as reverse-cycle heat pumps, providing efficient heating as well as cooling. In heating mode, a typical A++ rated system produces 4 to 5kW of heat for every 1kW of electricity it consumes. This makes it significantly more efficient than a traditional electric radiator and means your conservatory can be comfortably warm in winter without extending your central heating system.
The general calculation we use is 220W of cooling capacity per square metre of floor area. For a conservatory with heavy solar gain – a south-facing all-glass structure, for example – we increase this to 300W per square metre. We carry out a proper calculation on site during the free survey to make sure the system is neither undersized nor oversized, as both affect efficiency and comfort.
In most cases, no. A wall-mounted or floor-standing indoor unit with a small external condenser falls under Permitted Development for the majority of domestic properties. Listed buildings, conservation area properties, and some flats and leasehold properties may have restrictions – we advise on this during the site survey. We have been installing conservatory air conditioning units across Sussex for over 20 years and are familiar with the planning context across the area.
A standard single-unit conservatory installation typically takes between four and eight hours. We work cleanly, protect flooring and furnishings, and leave the space tidy on completion. Multi-split installations across more than one room will take longer and we will advise on timescales during the survey.
Contact Sussex Air Conditioning today to arrange a free no-obligation conservatory air conditioning survey. We will assess the space, specify the right system, and provide a full written quotation with no obligation.
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