Before any work is carried out, TEK ETANCHEITE offers comprehensive diagnostic and assessment services to evaluate the condition of roofs, facades and waterproofed structures. Using precise analysis and high-performance measuring tools, we identify problems (leaks, cracks, detachments, corrosion) and their causes. These assessments enable us to draw up a targeted action plan, guaranteeing appropriate and durable repairs. We also assist project owners and property managers in preparing technical files and contradictory assessments, in order to secure decisions and optimise the costs of the work.