Germany – Roof works and other special trade construction works – Dacharbeiten

Open tender by Land Berlin for roof renovation works at Alexander-von-Humboldt-Schule in Berlin-Köpenick. The project involves 2600 m² of demolition of hazardous roof buildup, bitumen sealing, insulation, and new roof drainage. Single lot, price-only award, estimated value €884,857.08. Submission deadline 2026-07-13, electronic only in German. Strict eligibility criteria include minimum 7 workers, 3 comparable references (one at least 600 m² during building use with hazardous material removal, one on a heritage building), minimum annual turnover of €2M, and professional liability insurance of €600,000 per claim.