Extension of the ventilation system at the primary school and all-day school, Fröbelstr. 15, Langenfeld

Summary

This open procedure concerns the extension and complete installation of ventilation systems for the extension of the primary school and all-day school at Fröbelstr. 15 in Langenfeld. The works include two rooftop air-handling systems, ductwork, air outlets, fans, fire dampers, insulation, commissioning, documentation, maintenance and annual optimisation during the four-year warranty period. The tender is not divided into lots, and alternative tenders are not permitted. More than one main tender is allowed if each tender is independently awardable. Price is the only award criterion. Offers must be submitted electronically by 6 October 2026 at 10:00. The bidder must include the completed bill of quantities with unit prices and totals in PDF format, the required self-declarations and the required evidence. Three comparable references from the last three years are required. The bidder must also comply with the specified technical, hygiene, fire-safety and energy-efficiency requirements, provide equivalence evidence for alternative products, and include four years of maintenance, annual optimisation and 24/7 fault reporting with a maximum 12-hour response time.