hi there
is this not an issue of managing customerclient expectations, we all do it with our comercial clients, and it is done every day of the week by suppliers that sell to general public,
i spoofed a local company several years ago as market research, and the client expectation was well managed,
when we clean for a commercial client we clean to a specification, this spec is held by the office, the client, and the cleaners, so that everyone knows what is done and when.
the private client, must also be given a spec, setting out the terms, and the parameters of the clenaing that will be done.
just an opinion, lets be honest we can all go down to the local market and sell £10 notes for £8 all day long but by the end of the day you will go broke.
regards
martin