Gutter hedgehogs, or gutter brushes, look a bit like a huge pipe cleaner. The are placed into the guttering with the aim of stopping the gutters from getting blocked with moss, leaves etc. Do they work? The simple answer is "no".
The muck washes down and accumulates underneath the brushes, making blockages even more likely than not having the brushes installed! The photos show two lengths of guttering AFTER the brushes were removed.








