Yesterday I went to catch a swarm in Summertown, Oxford. The swarm was hanging from guttering above a first floor window.
The person who called me helpfully had a large ladder. After quite a bit of work we fixed it to the house and I approached the swarm. I was not delighted with the place that the swarm had chosen. When you are balanced 5 metres above ground on a porch roof it's best not to think about the ground.