Joinery works for window renovation

Summary

The tender covers joinery works for the renovation of 390 window elements at Amtsgerichtsplatz 1 in Berlin. The works concern box windows, composite windows and single-glazed windows in courtyards 1–3, from the basement to the third floor. The renovation must follow heritage-protection principles, with preservation taking priority over replacement, and must be carried out in construction phases while keeping the court’s operations running outside the active work areas. Works are scheduled to start on 17 November 2026 and be completed by 29 February 2028. No alternative tenders are permitted, and there are no lots. Offers must be submitted electronically in German by 6 October 2026 at 10:50. The bidder must meet the stated suitability, lead-handling expertise and tariff-compliance requirements.