Our holiday cottage is in a terraced row of houses. Access to the back garden is either through the house, or through the back gardens of adjoining houses. There's an alleyway at the end of the row of gardens. Access is not easy, as there's a busy road to the front of the cottage and parking is not permitted during the day.
When I saw plants growing in the roof gutter at the back of our cottage I knew that we had to take action otherwise in the next heavy rainfall the gutters would overflow. This would affect not just our property, but also adjoining ones. If the blockage was on our property we'd be liable for damage to the other houses. The gutter is about 20 feet (6 metres) high above the brick surfaced courtyard and it needs a 30 foot ladder to access the gutter. There's no space at the cottage to store a large ladder, so I had to transport one on the roof rack of my car (3 x 3.4 metre sections). I also needed a ladder "stand-off" at the top end of the ladder to prevent any damage to the plastic guttering.