Martin,
Our company has about 60 developments that we have the contract for the weekly cleaning , over the past year or so we have been experiencing similar problems, residents want us to spend all day cleaning there stairwell for a nominal sum,, they want the world for nothing !
Its seems to us that the standard that people nowadays expect is forever on the increase as is our overheads and outgoings but they grump when we have a 6% increase a year.
we have started updating the specification that we work to and recosting, also we have added to our remit a number of cleaning areas that the residents require, most of theses are done at a set pricing structure and are carried out on a as and when basis .
Sometimes I wonder if its worth the hassle
Regards
Anna