Warranty management: The warranty period, which should be contractually regulated, begins when a technical system is handed over or accepted. In the case of existing defects, the customer has a statutory or contractually regulated claim against the manufacturer/supplier for rectification. The defect must be proven by the client and in the event of a dispute, a neutral expert will be consulted to assess the defect and any consequential damage. Our warranty management acts comprehensively in the interests of our customers and optimal property management.