Tisya as a company operates in Four different business verticals: tiWINDOWS - Premium uPVC windows & Doors + Ultra Luxurious Aluminum windows & doors tiSKYLIGHTS - Most creative skylight solutions with remote operated openable modules (almost any shapes that you would design) tiSURFACES - Internal & External Wall Cladding solutions (Natural as well as Artificial material) tiSHADES - Window shades from World’s number 2 manufacturer in the USA.