J.M. Glass specialise in the preservation of traditional leaded windows, focusing on the conservation of original glazing with minimal intervention. Understanding that in certain circumstances complete restoration becomes the only viable solution, we carefully remove the glazing, bringing it back to its original splendour while safeguarding as much of the original as possible.

With many years experience, Jim possesses a profound understanding of historic windows and glazing, employing traditional methods and materials to ensure authenticity, from minor repairs to leaded glazing and extensive restoration and conservation projects. Additionally, J.M. Glass can undertake replacement, restoration, and conservation of wood, stone, and metalwork. Each project is approached with respect and sensitivity to maintain the integrity of the original craftmanship and character of the window.