Windows are no longer an object to fill the openings in the Building envelope. Today’s windows are expected to perform various functions such as letting in light, keeping out heat/cold, noise attenuation, as well as being aesthetically attractive, needing lower maintenance and using energy saving/efficient materials/processes in place of scarce/energy efficient conventional materials. uPVC Windows/Door profiles are made from Poly Vinyl chloride resin, one of the most extensively used thermoplastics finding end uses in diverse sectors such as infrastructure, agriculture, healthcare etc. UPVC Windows/Doors are extensively used abroad, and are currently at a nascent stage in India. The major advantage of energy saving i.e. reduction in air conditioning bills up to 20-30% as well as saving of wood (in turn-forests) and energy intensive materials like Aluminium.