Sharon....there is another one of that joke... Knock knock Who's there Isabell Isabell who Isabell on a bike

Thanks everyone! It is kinda tricky because we want the screen/security on the outside so as not to "ruin" the nice look. But so far those that have come to quote said it can only be done inside. Which does defeat the purpose of having beautiful doors. We'll keep googling and calling!

I know you want Sydney based companies, but 2 great companies are based in Melbourne but supply to many Sydney sites. SkyRange https://www.steelwindowdesign.com.au 

If it is bare particleboard then my short answer is probably no, it is not worth paying double for better quality doors. Like I said, I haven't seen unfinished particle board inside cupboards in a long time. If it is laminated particleboard then it might be worth it. Like The Joinery Store said, laminated interiors are typical. Plywood is not unheard of (and I think it is more common in some other countries) but it would be unusual if you did not specifically request it. Just to be clear, the cupboard has been built and has laminate doors, and you are getting quotes to change the doors? For what reason are you thinking of changing them? What do you want the doors to look like from the outside? Do you want them to match any other doors or features in the room which are timber or poly?