Hi everyone,
I'm new to the WindowCleaning forums so first of all thanks to everyone for the wealth of information on here.
I've got a specific question that I'd be grateful for any suggestions for - couldn't find a solution using the search function.
I've come across some white marks on the inside of windows that seem very stubborn - on chatting with the customer we worked out that its markings from having aluminium (kitchen) foil against the window to block light, which has since been removed. You can see the grid pattern from the foil on the windows. Perhaps aluminium oxide?
Any tips on method / products that can remove these marks, please?
Thanks so much for any suggestions!
I'm new to the WindowCleaning forums so first of all thanks to everyone for the wealth of information on here.
I've got a specific question that I'd be grateful for any suggestions for - couldn't find a solution using the search function.
I've come across some white marks on the inside of windows that seem very stubborn - on chatting with the customer we worked out that its markings from having aluminium (kitchen) foil against the window to block light, which has since been removed. You can see the grid pattern from the foil on the windows. Perhaps aluminium oxide?
Any tips on method / products that can remove these marks, please?
Thanks so much for any suggestions!