Anybody can provide the quotation as below the item:-
1) sets of 4 ft H x 4 ft W Aluminium casement window with tinted glass. Supply & install
2) sets of 4 ft H x 4 ft W Window grill with painted. Supply & install
3) set of 4 ft x 4 ft Aluminium sliding window. Supply & install
4) Demolish existing 7" x 7" door and fill up with cement wall.