Thanks for all your replies and opinions. It is great to hear what others think.
The think with my problem is that this business was not there before us. They opened good 2 years after we had moved in. Until then our flat was a place of calm and rest after work.
Unfortunately, the problem is still ongoing and even after speaking to them and asking them nicely if they could stop the noisiest work before 5pm was completely ignored.
Actually, up until January 2020 they were also working every Saturday until 9pm.
I am not asking them to stop working. I understand how we all need to make money to be able to look after our families. All I would like them to do is to be more considered and try to finish their work before more reasonable hours. But my plea falls on deaf ears.