The article presents the results of a study of the principles of planning additional measures for the engineering protection of buildings in urbanized areas with a potential risk of deformation processes based on logical and graphic modeling. We analyzed statistical data on cases of activation of exogenous geological processes in Russia, affecting buildings. The relevance of the study is justified by the need to ensure the operational reliability of water-carrying communications, which are sources of potential flooding and activation of deformation processes. The purpose of the study was to substantiate the frequency of operational measures for hidden communications to reduce the risk of leaks. On the basis of the constructed failure tree, an economic feasibility study was carried out for the optimal periods of scheduled inspections at different intervals of repair. The results obtained by the author can be used in the development of regulations for the maintenance and repair of engineering communications.