[ok cleaning]

have you noticed how cleaned the windowes are no rain no wind and when you turn up to clean them they are not realy that dirty are they?

[Dick]

Yes, I've noticed that and feel a bit of a fraud cleaning apparently clean windows. But just carry on until someone mentions it.
Dick

[Sean Leahy]

Hi

The customers notice as well I have had a few metion that their windows
are clean. We are never satisfied moan when to much rain moan when to little.

Sean

[WavieDavie]

Your customers are paying you to keep the windows clean. Not to turn up when they're dirty and make them clean again.

You turning up on the agreed schedule is a feature of your business, and the benefit to them is always knowing that they'll have clean windows.

Never feel guilty about using quality products which ensure that the windows stay cleaner for longer.

[windows_chepstow]

Your customers are paying you to keep the windows clean. Not to turn up when they're dirty and make them clean again.

Exactly.  Debbie (Texas Girl) cleans house windows only once a year but charges something like £6.00 per window.

Frequency of clean affects the price.  If it's weekly, it's going to be cheaper than if it's quarterly; as there's less grime to remove.

You're paid to provide an honest service, at your agreed regularity.  There's no need to think you're a 'fraud'.

One common complaint from customers is that, 'My old window cleaner was supposed to come every month, but he only came when he felt like it'.

Obviously they were on someone's 'B List' (David's phrase), so just stick to the time-schedule you originally agreed with your customers.