Air conditioning is worth it if your home has rooms that regularly overheat, especially bedrooms, loft conversions, south-facing living spaces and home offices. A split system keeps those rooms comfortable on hot days, and most can also heat efficiently in spring and autumn, so they earn their keep for more than a few weeks a year.
If your home rarely gets uncomfortably warm, good shading and ventilation may be all you need. The deciding factor for most households is whether one or two rooms make summer hard to live with. Our air conditioning page explains the options.
Which homes benefit most
- Homes with loft conversions or rooms in the roof
- Properties with large windows or glazed extensions
- Well-insulated newer homes, which hold heat in summer
- Homes where people work or sleep during the day
- Households with health needs that make heat harder to cope with
Which rooms to start with
Most people start with one or two rooms rather than the whole house:
- The main bedroom, for better sleep
- A home office
- A loft room or extension that overheats
- An open-plan living area with lots of glass
A single split system per room, or a multi-split with one outdoor unit serving several rooms, keeps things flexible.
Cooling and heating in one
Most split air conditioners are air-to-air heat pumps. In heating mode, they can warm a room efficiently, which can be useful in shoulder seasons, in rooms the central heating doesn’t reach well, or in garden rooms and annexes.
Things to weigh up
- Installation cost, depending on rooms and system type
- Running costs, depending on use and your tariff
- Outdoor unit position, with airflow and consideration for neighbours
- Planning, particularly for listed buildings, conservation areas and National Park locations
- Maintenance, including filter cleaning and periodic servicing by an F-Gas certified engineer
Coastal and New Forest considerations
Homes near the coast around Lymington, New Milton and Christchurch are exposed to salty air, which can affect outdoor units over time. Some manufacturers offer coastal protection options for outdoor units, and positioning the unit sensibly helps. Properties within the New Forest National Park may also have extra planning considerations, so check with the local planning authority if you’re unsure.
Air con and your central heating
Air conditioning isn’t a replacement for your central heating. If your heating system struggles to warm certain rooms in winter, it’s worth checking radiators, balancing and controls as well.
Frequently asked questions
How long does installation take?
A single room split system is often installed in a day. Multi-room systems take longer depending on the pipework routes.
Does air conditioning dry the air?
Yes. Cooling removes moisture, which many people find makes hot, humid days more comfortable. Most units also have a dry mode.
Will I need permission for the outdoor unit?
Many installations are permitted development, but conditions apply, and listed buildings, conservation areas and National Park properties may need permission.
Talk to us about cooling your home
If you’ve got a room that gets too hot, give us a ring on 01425 542077 or send us a message and we’ll chat through what would suit it.