Why Wiltshire homes overheat
The county's housing pulls in two directions. Swindon has grown fast, and its newer estates are full of well-insulated houses with big south-facing windows and bedrooms in the roof. That insulation is brilliant in January and a problem in July — heat gets in and has nowhere to go, and loft rooms in particular can be miserable to sleep in during a warm spell.
At the other end are the Victorian terraces of Swindon's old town and Chippenham, and the older stone properties in and around Salisbury and west Wiltshire. Thick walls buy you a day or two at the start of a heatwave, but once they've warmed through they hold that heat stubbornly and take a long while to cool back down.
On cost, we're not going to print a number here and pretend it applies to your house — prices vary with the property, the number of rooms and how far the indoor and outdoor units sit apart. Our cost guide sets out realistic ranges and what pushes them up or down. The point people often miss is that a modern split system is a reversible air-to-air heat pump: it heats in winter as well as cools in summer, and does so far more efficiently than a plug-in electric heater. One honest caveat — the Boiler Upgrade Scheme covers air-to-water heat pumps, not air-to-air systems like these, so budget without counting on a grant.
Planning, conservation and electrics
Salisbury needs care. Parts of the city centre are covered by conservation areas, and there are plenty of listed buildings — the same goes for villages across the county, particularly the stone ones towards Bradford-on-Avon. None of that necessarily rules out an external unit, but it does mean checking with the council before anything goes on a wall. Don't let anyone tell you it will be fine without looking.
Two practical points. Flats and leasehold properties almost always need the freeholder's consent first. And older homes often need their electrics checked before an installer will connect anything — this guide explains what an electrician will look for and what might need upgrading first.
Where Coolhouse is up to in Wiltshire
The straight answer: our vetted installers are currently in Hertfordshire, and we have not yet signed installers in Wiltshire. We're building the network out and keeping a list of homeowners who want matching as soon as local installers come on board. If you leave your details, we'll tell you honestly where we're up to — no pretending a quote is coming tomorrow, just a candid update and first refusal when we're live near you.