Thanks for all the comments. I have a scaffold that I use to clean her which makes things a bit easier than just a ladder. With temperatures the way they are I was going to leave the proper repair until it’s a bit warmer. She’s under cover most of the time (I’ll have to attach picture of the shelter of which I am v proud!) although I will be away in her for a few days later this month, I’ll just keep an eye on the mastic during that time. I live in North Devon if any one knows of a quality repairer.