Opening and closing trench services in water supply and sanitation networks

Summary

This tender concerns the provision of opening and closing trenching services in water supply and sanitation networks for Águas do Alto Alentejo, EIM, SA, covering four lots: Lot 1 Ponte de Sor; Lot 2 Gavião and Nisa; Lot 3 Arronches, Castelo de Vide, Crato and Marvão; Lot 4 Alter do Chão, Fronteira and Sousel. Proposals must be submitted via the VORTAL electronic procurement platform by 20 October 2026 at 23:59. The contract duration is 36 months. The award uses a multi-criteria approach with price accounting for 70% and technical/value criteria for 30%. A bid guarantee of 5% (excluding VAT) is required. Access to procurement documents and proposal submission is via the platform; the procurement is not a framework agreement and does not involve a central purchasing entity.