This paper describes conservation and restoration technologies on facades of cultural heritage sites. Introduction provides general informations about terminology of conservation and restoration: definitions, history and applying areas. Afterwards, types of technologies of conservation and restoration were described, considering mostly used materials in façade works of old buildings; stone and plaster, metal materials too. Talking about stone facades, techniques of making replicas, merging of elements and imitation were defined, while for plaster facades, techniques of refilling materials and making replicas were described also. Furthermore, materials which are used to perform specified technologies, talking about their properties, characteristics and applying areas were described, to be used more appropriately for conservation and restoration works. Also, new nanomaterials and organic origin materials were stated, which are not mostly used in everyday practice. In chapter 2.3. modern methods of façade work data collecting were defined, talking about known methods such as humidity measurement and acoustic monitoring. Also, new methods of 3D modelling for easier dimension obtaining and spatial shapes of façade elements were defined. In the last chapter procedures of necessary conservation and restoration on the example of Juraj’s wreath form Šibenik cathedral, were described.