Workshop in Bochum, Herne, Castrop wanted

Hello, we have a 5 year old Ford, on which maintenance work (inspection, brakes, tyres) has to be done. Does anyone know a workshop in the REgion Bochum, Herne or Castrop-Rauxel, which can do something like this well and be installed with the parts brought with it? It’s the case that a few workshops don’t like to do this because of “guarantee”. Whereby the workshop legally gives only a guarantee on the installation and the warranty for the parts at least I have no problem with that, but I want to define for myself which parts are to be installed.