Calibre Windows & Conservatories Ltd. has been a leading manufacturer and supplier of high-quality PVC-u windows and doors since 1998. Based in Aston, Birmingham, the company is known for its commitment to quality, security, and energy efficiency. Their products range from Eurologik windows to Eurocell Modus windows, composite doors, UPVC doors, and panels, porches, bi-fold doors, and conservatories, all available in a variety of colors.