Pam asked ... Do I need to open the housing to dry the motor?    |    James asked ... Remove enterprise enrolment from an Asus Chromebook C523N?    |    tom schwartz asked ... Bosch maxx 6?    |    Noman asked ... Reverse light switch?    |    Suzie asked ... Stuck Feed dog?    |    Click here to ask your question

UPVC Window Locks stiff?

My windows are about 2 years old and have all become over the last 6 months very hard to un lock/lock and the handles are stiff to turn. If the window is open the handle moves freely. Do I need to adjust the windows in some way?
KP, December 2010