Why Merton homes get so warm
Merton sits well inside London's built-up sprawl, and summer nights here don't cool off the way they do further out. It's rarely the afternoon peak that sends people looking for cooling — it's the bedroom that's still stuffy at midnight.
The housing stock plays a big part, and it varies across the borough. Around Wimbledon and Wimbledon Village there's a lot of large Victorian and Edwardian stock — solid brick walls, tall ceilings, and often a loft conversion at the top that becomes the hottest room in the house. Out towards Mitcham and Morden it's mostly interwar semis and terraces: smaller, with shallow lofts and rear rooms that catch the sun all afternoon. Solid brick soaks up heat through the day and lets it go slowly through the evening, which is why these houses feel warmest just as you're trying to sleep. If yours is one of the older ones, our guide to air conditioning in Victorian homes covers the quirks — including the fact that older wiring sometimes needs upgrading before an install, which is worth finding out early rather than on the day.
On cost, we'd rather not throw numbers at you that don't fit your house. Prices vary with the property, the number of rooms and how far the pipework has to run. Our UK air conditioning cost guide sets out what pushes the price up or down — and it's worth knowing that a modern split system also works in reverse as an efficient heater, which changes the sums for a lot of households.
Conservation areas, flats and consent
Parts of Merton are conservation areas — the streets around Wimbledon Village among them — and an outdoor condenser unit may need checking with the council before it goes on a wall. Don't assume either way; ask first. If you're in a flat or a leasehold property, common around Wimbledon town centre, Colliers Wood and Morden, you'll almost always need the freeholder's consent too. A decent installer raises both before quoting, not after.
Where Coolhouse is up to in Merton
Straight answer: we don't have vetted installers in Merton yet. Our installer network currently covers Hertfordshire, and Merton is on the list of places we want to reach. If you register your interest, we'll tell you honestly where we're up to and get in touch the moment a vetted local installer comes on board — no promise of a quote tomorrow, because we can't keep it yet. In the meantime, the guides above will help you work out what your home actually needs, so you're ready when we are.