Cold Shield founded in 1989 by David Holmes is a company dedicated to its customers and a result has become the leading manufacturer, retailer and installer of uPVC products. We offer an extensive selection of high quality, attractive and affordable products and boast the largest selection of high quality conservations in Scotland. Cold Shield Windows – Customer Dedication. Here at Cold Shield our dedication to our customers and their satisfaction has meant that we now offer our best quality products at the most competitive prices around. Affordability is key. All of our products are manufactured in Scotland and are individually tailored to our customers exact requirements and needs. Our windows, doors and conservatories have been expertly designed, assembled and installed to cope with even the most severe Scottish weather. You will be fully protected behind out highly durable uPVC products. Triple glazing is a must when it comes to coping with the harsh Scottish climate and ou