The guy who fitted our fibre internet line had to go up to the eaves on his ladder. He asked if it was OK to drill a hole in the wall at ground level. He then secured his ladder to a fitting in the hole before he went up. I offered my foot on the bottom rung instead but he said that wasn't allowed nowadays. Are these kits commercially available, as I often wobble a bit high up but Mrs Vicario's foot at the bottom has saved me so far! He filled the hole before he left and there's really no sign that he's ever been there. What would have happened if I'd said no to the hole?