Screen assembly

A screen assembly for a window, said screen assembly comprising:

• a pair of parallel and spaced apart side rails having upper and lower ends, wherein said side rails are locatable against respective sides of a window opening;
• and
• a head assembly including a roller upon which is wound a screen, said head assembly extending between said side rails and adapted to be mounted on said upper ends of said side rails to be supported thereon against or adjacent to an upper side of the window opening;
• wherein each of said side rails is linearly extendable so that said upper and lower ends of said side rails frictionally engage upper and lower faces of the window opening to secure said side rails, and said head assembly mounted thereon, in place within the window opening;
• wherein said head assembly comprises an elongate hollow housing adapted to enclose said roller and a portion of said screen wound thereon and extending between a pair of end caps fitted on ends of said housing, wherein said screen is arranged to extend through an elongate gap in a lower side of said housing;
• wherein each of said end caps includes a mount for supporting a respective end of said roller and an attachment assembly for attaching said head assembly to said side rails;
• and
• wherein said attachment assembly of each of said end caps of said head assembly comprises a first part engageable with a second part provided at said upper end of each of said side rails, said first and second parts being adapted to couple together at a plurality of different vertical positions with respect to one another to allow the vertical position of each of said end caps to be adjusted on the respective side rail to facilitate levelling of said head assembly.