Hi, I am quite new in this forum, just want to seek some advise with u guys out there. Recently i just signed a package but find that some portion of the quotation that my ID give abot expensive. My new home is a 4 room flat in punggol, this part abt installing window grills with curtain pelmet for 1 living room, 1 master bed room, 2 common bedroom and installing window cum window grill at service yard cost $2320.. The breakdown as below: Living room: $370 Master bedroom: $390 Bedroom 1: $250 Bedroom 2: $300 Service yard: $1010 Are the above expensive for the whole house window?