Lets be honest we all get awkward situations from time to time and we all get the "oh not this time "please merchants from time to time. How we handle these situations is down to how we all run our own businesses. Flexibilty goes a long way, but it has to be from both sides, the custies and the people running the business.
IMO alot of this can be sorted out at point of quote

First Question "what regularity are you looking for?" 99% of the time I am then asked, how often do you come to this area? You can then take it from there and come to an agreement. Written quote with terms which you give to custie and keep a copy yourself.
Sometimes custies don't keep to the agreement, but you have to take into account why they have dipped out of their scheduled clean? a) Have a funeral wake here when you are due....... ok you can live with that one and then carry on as normal from the next time of their schedule.....b) Oh i don't want them done this time as you arrive to clean... ok for one time, but keep an eye on these, get their phone number (saves a vehicle journey) and when you are next due phone the day before, if you get a yes all is ok, if you get a no.......send letter with copy of the original quote. words to the effect, I have enclosed the original agreement between us, which says that you are on a 6 weekly schedule. You windows have not been cleaned since....... at your request. We have to take this that you wish to come away from the agreed 6 weekly schedule and we will now adjust our records. We do offer an appointment only service, which starts from £xxxx, but will be quoted at each request. Please allow at least 5 working days notice for this service. Please note that during busy periods of the year, this service may not be available. Has worked with some and they are now back on their original terms, and others have not contacted us, but driving past their properties it is clear they have not found someone else. Be fair but be firm, don't be taken for a mug, but don't cut your nose off to spite your face
