I have to say - you can stick up for the cleaners if you wish "Bossman", but if they do a crap job (and she does), why should we tolerate it? She's paid to do it - end of. Sorry, but that's life.
I'm paid a crap wage too..does that mean I should just silence alarms and leave faults, and leave keyboards and PCs half torn apart? I think not. As has been said - if you're paid to do a job, you do the damn job to the best of your ability.
We had an ace cleaner, who's now retired..and we're lumped with this utter excuse..it's frankly embarrasing, and bloody annoying. I think it might be time to set up the IP cam and see if she does anything in here.
As I say - she was sacked from her last area (music) for being shite...and we were warned to keep an eye on her. Well, I can see why..