How do I go about cleaning my windows?

PVCU windows and doors can be cleaned with warm soapy water.

I have a mark on my windows that I can't remove with soap and water, can you recommend a product?

Stains or marks on PVCU Windows or doors that cannot be removed with warm soapy water may be removed with a non-abrasive domestic cleaner. However, these may not be used to excess as they may affect the gloss finish. For products with a colour or woodgrain finish, you will need to contact your installer to recommend a product for cleaning the products.