I've put a few before and after photos to show what is possible with just a basic first clean.
Those windows haven't been done for at least 2 or 3 years and they still came up well.
All I did was use pure water and a bit of scrubbing with the water fed pole.
There may be the odd spot after a first clean due to the fact that it is not always possible to get everything out of everywhere on the first clean but after another monthly maintenance clean or 2 that won't be an issue.
