Apart from older style UPVC and aluminum frames, are there other instances when the window will haze or spot?
Pure water does not dry to a haze or spot so there has to be a reason for this. The most common reasons is when we introduce a pole system for the first time to a building that has previously been cleaned by convential methods such as soap and water. The highly concentrated soap residue (usually fairy liquid), leaves a film on the glass surface and builds up deposits in the actual frame itself. Once we flush this out and clean the window, it can leave for the first 2 – 3 cleans a slight haze and the occasional spotting. This will improve with each clean and will be noticeably better. To tackle this, Glassmatic will always come back to rectify this problem after the initial clean.
