Design and construction of the ventilation installation for the café at Ujazdowski Castle

Summary

The tender covers the design, installation and commissioning of mechanical ventilation for a café room at Ujazdowski Castle in Warsaw under a design-and-build arrangement. The works include surveying existing ducts, design and approvals, installation of an approximately 600 m³/h heat-recovery ventilation unit, ductwork, air intake and exhaust systems, controls and electrical supply, as well as commissioning, testing and as-built documentation. The system must serve approximately 48.39 m² and 19 people; the indicative supply and extract airflow is 570 m³/h, and the noise level in the customer area must not exceed 45 dB(A). The works must be completed within 150 days of contract signature. Tenders must be submitted by 30 September 2026 at 12:00; price is the only award criterion and accounts for 100%. Participation requires compliance with the experience, qualified personnel, tender guarantee, electronic submission and pre-contract guarantee requirements.