Cleaning / Maid services, how to choose what to skip

Hello everybody,

i am in need of a cleaning service / maid in Amsterdam (no not the song) to come and clean the apartment regularly (at least twice per month) and i don't know where to start for this kind of services: shall i look for an agency, those offers on google are legitimates or too good to be true therefore scams ?

I'd like to have everything done regularly and i'd like to be sure to trust the person that will come clean the apartment from dirt and dust not my personal belongings.

Do you have any advice on this need? Is it something uncommon in the dutch culture ?

Many thanks for all suggestion and tips you can give me