https://www.pilkington.com/en-gb/uk/news-insights/blogThermal Insulation, Windows, Replacement Glazing, Commercial Windows, Company, Trade Portal, Sustainability, Architect, Trade. Blog Post. 31 January 2020. The beauty of choosing bi-fold doors for your home. Letting a vast amount of light into the home not only looks great from an aesthetics point of view, but its proven to improve our well-being – and for that reason bi-fold doors continue ...