Drone services in Cullompton

The town sits low on flat ground beside the Culm, which means it holds cold air and moisture. Thatch and shaded slate both stay wet noticeably longer here than on the higher ground either side, and anything that depends on a surface drying between wettings is working harder than it looks.

That has a direct effect on what surveys find. Moss and lichen build up sooner, mortar bedding softens sooner, and a north-facing slope in the middle of the town can be in a visibly worse state than an identical roof a mile up the hill.

Fore Street and the lanes behind it hold a medieval and Georgian core, with cob and thatch mixed in among the older buildings. Cob walls do not tolerate water running down them, so gutters, downpipes and the condition of the thatch above are not cosmetic questions in this part of town.

Around that sits a large volume of late twentieth century estate housing and continuing expansion. Those are conventional pitched roofs on concrete interlocking tile, and the enquiries they generate are ridge bedding, verge mortar and the occasional slipped tile, all of which read clearly in a single overhead pass.

Modern estate roofs also tend to be inspected by nobody at all until a house changes hands, at which point a homebuyer's report says the roof needs further investigation and the seller has a fortnight to sort it. That is one of the more common reasons somebody in this town rings at short notice.

Being on the motorway corridor has given Cullompton more large-span industrial roofing than a town of its size would otherwise carry. Profiled metal sheet, translucent panels that have gone brittle and yellow, and valley gutters filling with debris are the usual findings on that stock.

None of that gets looked at until something drips onto stock or a machine, and by then the question has become expensive. A flown record of a whole estate roof is unremarkable work that saves a disproportionate amount of trouble.

The steady new build here brings a specific and time-limited enquiry: somebody inside a builder's defects period who wants the outside of their house recorded while the builder is still on the hook for it.

Those flights are short, the findings are usually small, and the value is entirely in the date. A photograph taken before a deadline is a completely different document from a description written after one, and it is worth the small cost precisely because it may never be needed.

There is a second, quieter version of the same job: an owner a few years past the defects window who simply wants to know what state the roof is in before the warranty runs out entirely. It is the same flight and a much calmer conversation.