Thank you for your replies and understanding
Now I know I wasn’t being irrational or a wingebag! I don’t want to involve the council because my landlady, who is lovely, would have to declare as such to the next tenant or if she sells up. I think I’m more shocked at the lack of courtesy and the fact that I introduced myself to the owners of the new shop, said what a great addition they were to the street etc and they didn’t even pop round with a “sorry for the 4 months of constant noise” jam tart!
Very good to know! I assumed it was the same rules as beeping car horn (7.30am-11.30pm) so that’s why I never complained