SYD Lda is a Portugal-based construction and renovation company founded in May 2024. It provides tailored services for residential and commercial properties, managing projects from initial consultation and planning through construction and final handover. The company undertakes complete construction and reconstruction, including turnkey homes, structural reinforcement, concrete foundations and structures, and restoration of older buildings. Its renovation work ranges from cosmetic updates to full remodels involving replacement of utility systems, accessibility adaptations, and restoration of historic properties.

Additional services include demolition and safe waste removal, plumbing and waterproofing, electrical installation, interior and exterior finishing, façade restoration, roofing, terraces, and gutter repairs. SYD also handles architectural and technical planning, project management, and support with permits and administrative requirements. Its process features a personalized proposal, a detailed contract with staged payments and a schedule, and regular photographic progress reports. The company states that construction work is insured and that it provides a five-year warranty in accordance with Portuguese law. Customers can also use its online calculator to estimate construction costs.