The cost of invisible grilles for HDB flats in Singapore varies by provider and is often calculated either by apartment style or per square foot. Packages from suppliers like Endo Grilles start out from $499 for any 3-area HDB, $639 for just a four-room, and $799 for the 5-place. Major one Singapore Protection Window has marketing pricing at $one,200 for 3-room, $one,five hundred for 4-space, and $one,900 for five-home flats. Alternatively, fixed grilles can Price from $four.ninety for each sq. foot, while openable kinds are close to $18.fifty psf. The ultimate Value is influenced by variables such as the quality of chrome steel used (316 can be a quality choice), the dimensions with the window, and set up complexity. Several vendors provide these expert services, including Mystery Furnishing with showrooms in Outram, Jurong East, and Tampines; DeGrille Pte. Ltd. at 15 Changi North Street 1; and Diamond Grille Methods at 47 Kallang Pudding Highway. Lots of corporations present no cost on-site measurements get more info and quotes to deliver precise pricing.