Lambton Doors is a Quebec manufacturer of commercial and architectural wood doors, based in the village of Lambton in the Eastern Townships. It publishes a full architectural catalogue, master specifications, installation instructions and technical bulletins, and supports architects with a dedicated specification portal. Its own associations and certifications page carries the Warnock Hersey mark alongside QAI, QCP Architectural Woodwork, AWI and FSC chain-of-custody certification. Products are backed by a lifetime warranty and EPD and HPD environmental declarations.