Quite Hours in Switzerland:
Monday - Saturday: 12:00-14:00 and 22:00-7:00
Sundays and Public Holidays: All Day
Ignoring these hours can make you liable for fines. Check with your Gemeinde for local rules regarding noise levels. At, certain times, for instance, noise generated by garden work or certain household appliances may be restricted.
Just in case you haven't already heard it, Swiss punctuality is a real thing. Be on time. If you think you will be delayed beyond 5 minutes, make sure to inform.
It's always a good idea to pick up a little of the local language. Locals will also warm up more easily to you. ISB offers German courses for parents (stay tune for announcements via newsletters around September) and you can also join one of the multiple language academies in Basel.