You can do it by yourself. " U* n6 w7 y$ v+ \" x2 e2 l# E f 9 U+ a; C, T# B: K: ]& i
they have a special tool to force in, just right beside the screen, or simply jsut buy a package with tool and screen. ( u2 Y/ y) p; Y; H0 \* ]0 I ) W) b, K0 ]3 |+ H4 W% a
just be careful the size and the length, there are 2-3 different size, for patio door or for window.