Why air-to-air makes sense in a cooler county
County Durham's housing stock was largely built for coal, in every sense. Durham city has Victorian terraces climbing away from the peninsula; Darlington has street after street of railway-era terraces and interwar semis; and around Bishop Auckland, Spennymoor and the former colliery villages you find solid-wall terraces that were built quickly and were never easy to keep warm. Solid brick and stone walls lose heat fast, and heating these homes can be expensive.
An air-to-air heat pump run in heating mode delivers several units of heat for every unit of electricity it uses — a plug-in electric heater gives you exactly one. For a living room you use every evening, or a home office in a back bedroom, that can be the cheapest way to add controllable heat without touching the wet central heating system. Our guide on heating a room cheaply with air-to-air walks through the sums. And on the handful of genuinely warm weeks each summer, the same unit cools — a bonus rather than the headline.
We won't quote installed prices on this page, because they vary too much with the property and we'd rather not guess. Our UK cost guide sets out honest ranges and what pushes them up or down. One thing worth knowing before you get your hopes up about grants: the Boiler Upgrade Scheme only covers air-to-water heat pumps, so air-to-air systems don't qualify.
Older terraces: check the practical stuff first
Two things catch people out in older Durham homes. First, electrics. Plenty of terraces still have ageing consumer units, and a good installer will want to check yours can take the extra load before fitting anything. Sometimes that means an upgrade first — better to find out early than on installation day.
Second, planning. Durham's historic centre includes a World Heritage Site, and like most older towns, parts of Darlington and Bishop Auckland have conservation areas. That doesn't mean no — it usually means thinking about where the outdoor unit goes, and checking with the council before putting one on a visible front wall. Flats and leasehold properties almost always need the freeholder's consent too.
Where Coolhouse is up to in County Durham
Honestly: early. Our vetted installers are currently in Hertfordshire, and County Durham is a county where we're still building the network. We won't pretend otherwise, and we won't promise a survey next week. What we will do: if you register your interest, we'll tell you plainly where we're up to, and match you the moment there's a local installer we'd trust in our own homes. No spam, and we don't sell your details on.