Thanks Spruce, it is a learning curve for me, and I’m always conscious of where the sun shines on each house, and you make a very good point on south facing! Thank you..
In the summer months, our front windows take a real hammering from the morning to mid-afternoon sun. I don't think the plastic is top quality, either. If I run my finger across the top transom bar of the frame, I get a white power residue on my finger. When cleaning the window, the water absorbs this residue and promptly deposits this in vertical lines of white spots down the glass, which become visible when the water dries. It just means that I have to do the frames and glass first and then come back to reclean the glass when the top frame has stopped dripping. I can also just run the brush head's bristles up again the frame with the water off to remove those last remaining drips. Then wash and rinse the glass only, not splashing water onto the top frame.
This does take time. Someone recently suggested that when doing a quote, just do the finger test before quoting. I thought that was a brilliant suggestion. Cleaning my type of windows will mean you quote a higher price as the job is going to take longer.
I've been cleaning our front windows for the past 18 years, and the problem has never got better.
Another point is that a couple of south facing windows on the round mist up when we clean them. I had one on Friday. The window has blown and let in moist air. When the air gap is cooled, it can't hold as much water vapour as it could when warm, so it releases it onto the glass.
