Each contract is issued with a pocket computer containing a programme that allows them to rate each aspect of our service, this is also followed up with a monthly QA meeting where we present a report including graphs in order to ascetain if we have reached the required standards.
This method puts the client totally in control, and enables us to build close relationships with each of our client's, the investment required, both in time and money is not insignificant, but, in my opinion, is well worth it.
Would advise against the philosphy, no news = good news, as an awful lot of client's tend to change cleaners on an annual basis.
Regards,
Rob