Replacement of windows at Carolinensiel Primary School

Summary

The tender concerns the replacement of windows at Carolinensiel Primary School in Wittmund as part of an energy-efficiency renovation. The works include supplying and installing plastic windows, removing the existing windows, transport, commissioning, disposal, sealing, plastering and wall-connection works, and installing insect screens. The windows must include triple insulating glazing, an inner laminated safety pane, solar-control glazing with a g-value of at least 0.38, sound insulation class 2, resistance class RC 2N, and a UW/UD value of no more than 0.95 W/m²K. Tenders must be submitted electronically by 06 October 2026 at 09:30, and price is the only award criterion. The bidder must submit a fully completed tender, a suitability self-declaration, a tariff-compliance declaration and a valid exemption certificate for construction withholding tax.