Windows and external doors

Summary

The tender covers the supply and installation of windows and external doors for a new multi-family residential building in Krefeld. The works include aluminium entrance doors, PVC windows and doors with roller shutters, roof windows, and steel basement windows with protective grilles. The technical requirements include, among other things, triple-glazed insulating glass, a Uw value of 0.8 W/(m²K), sound insulation class 3, burglary resistance class S3, and specified sealing and building-connection solutions. The tender must be submitted electronically by 12 October 2026 at 10:00. Price is the only award criterion; alternative tenders are not permitted. The planned execution period is from 11 December 2026 to 9 September 2027.