Eco||Sistema – Construções em Madeira

Eco||Sistema is a wood-frame construction company based in Valença, in northern Portugal. Founded in 2005, it builds houses using FSC-certified timber, natural materials and engineered wood products, alongside paints and varnishes free of volatile organic compounds. The company also works on the restoration, rehabilitation and reconstruction of existing buildings. The firm's approach rests on wood's natural properties: good thermal performance, full recyclability and renewability. Timber sourced from responsibly managed forests is used throughout, and the company points to carbon sequestration as part of its case for building in wood, citing one cubic metre of timber as storing roughly one tonne of CO2. Eco||Sistema positions timber construction as an increasingly mainstream choice in Portugal rather than a niche one, a shift reflected in its involvement with the Fórum Construção Sustentável community, marking eight years of activity in 2024. The company combines architecture, engineering and construction services, working with architects and designers on projects intended to be both energy-efficient and visually coherent. The team is led by João Carlos Alves and Horácio Seabra, and the company describes sustainability, safety and quality as its three guiding principles. No specific project sizes, completed housing counts or client case studies are given in the available material, so the scale of its portfolio remains unclear from public information.