I would like to install window grille. Any recommendation? Ok with typical ones

Here is the contact I have when I did renovations for my BTO last year. Engaged him based on recommendations from my neighbours. I only put up grilles for my service yard then. His work is good and his pricing is reasonable. You can try contacting him if you are interested. Jia Le Aluminium Mr Koh Thiam Hock 97466305