The price of invisible grilles for HDB flats in Singapore differs by supplier and is usually calculated both by apartment variety or for each square foot. Packages from suppliers like Endo Grilles get started from $499 for a three-place HDB, $639 for a four-area, and $799 for any 5-place. Top rated 1 Singapore Protection Window has marketing pricing at $1,two hundred for 3-room, $one,five hundred for 4-space, and $one,900 for 5-place flats. Alternatively, mounted grilles can Charge from $4.90 for every square foot, when openable sorts are about $eighteen.50 psf. The final Price tag is influenced by components similar to the quality of stainless steel applied (316 can be a quality alternative), the scale from the window, and installation complexity. Various vendors offer these companies, including Key Furnishing with showrooms in Outram, Jurong read more East, and Tampines; DeGrille Pte. Ltd. at 15 Changi North Road 1; and Diamond Grille Techniques at 47 Kallang Pudding Road. Numerous firms supply absolutely free on-site measurements and quotes to deliver precise pricing.