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These really are an eyesore; they dangle down unfixed to the building in any way. They cast shadows in the sunshine, drip with water in the rain, and flap about in the wind. They are fixed at just two points — the antenna and the entry point (usually a hole drilled through the window frame).
Many are actually redundant, having been replaced by newer cables fitted to newer aerials that get Channel Five and Freeview Digital.
Things are getting worse when we allow tradesmen to get away with such poor quality work; cables ought to be run as inconspicuously as possible. In this style of architecture, there are plenty of opportunities for doing this — ledges, carved features, rhones, pointing and the like. There is simply no need to drop cables from the roof 12 -16 metres or more serving individual window entry points. Cables could easily be grouped down and run far more sensitively and neatly using cheap and readily available cable clips and ties.
If scaffolding or tall ladders are the problem, then perhaps the cables could be brought down the outside of the property at the rear only. Another possibility could be to use some form of trunking to collect and tidy up all the cables. Anything would surely be better than the present situation.