• It is advisable to carry out routine maintenance twice a year, although this may need to be done more frequently in areas of high exposure.
• As a general rule, all parts exposed when the window or door is closed, should be washed down with warm soapy water using a soft cloth, and dried thoroughly
• Avoid ammonia and abrasive cleaning agents, particularly on handles and other metal filaments.
• Parts exposed when the window or door is open should be simply wiped clean, removing grime from old lubricant, airborne debris and remains of insect life etc.
• Special attention should be paid to keep the drainage channels free and clear of blockages.
• Moving parts and fixings should be treated as follows:

A very light application of petroleum jelly or equivalent will keep the locking mechanisms and keeps in good working order, while a suitable acid and resin free grease or lubricant should be used on sliding bars, gears and face plates. Maintenance of friction stays is critical and it is important to follow instructions for lubrication and adjustment.

• Check that all fixings are secure and properly adjusted.