Tewkesbury gutters, specifically
Why gutters matter more on old Tewkesbury buildings.
Tewkesbury's old town is full of timber-framed buildings along Church Street, the High Street, Barton Street and the alleys between them. On a timber-framed building a blocked gutter is more than a stain on the wall. Water overflowing at the eaves runs down the frame and sits in the joints between the timbers and the infill panels, and timber that stays wet is timber that rots. Keeping the gutters and downpipes clear is one of the cheapest ways to look after a building that has already stood for centuries.
The town also sits where the Avon meets the Severn, surrounded by low meadows including the Severn Ham. That keeps the air damp through autumn and winter, roofs slow to dry, and moss growing well on old tiles and on the estates' concrete tiles alike, and it washes into gutters with every downpour. Around the Abbey, the Vineyards, and the trees along the Swilgate and the Avon, autumn leaf fall adds to it.
Out on the estates (Northway, Priors Park, Newtown, Mitton, Wheatpieces and Walton Cardiff) it's standard PVC on concrete tile, mostly two storeys, and the job is simpler. The problem is the same, though: moss off the roof, silt in the trough, and outlets that slowly close up until the gutter overflows in the first heavy rain.