It is absolutely a restorer job, the intervention on canvas and painted panels are mostly made in laboratory, transporting the artwork with the due care and precautions. In some cases, the restoration is also executed on site. The specialists that work directly on the artwork make use of the chemical-physical and multispectral analyses to test the most appropriate product (solvents, protective coatings, colours touch-up), to verify at the microscopic level the status of conservation and to reconstruct as closely as possible the details and colours in cases of re-integrations of gaps and spread abrasions.

As for the paintings on canvas, the intervention requires different workings: preventive tissue-paper positioningbefore the phase of dismantling from the original location, dismantling and handling, tissue-paper positioning, rafting, replacement of the frame with a wooden or metallic new frame, cleaning (with different methods and instruments depending on cases), plastering of the holes and abrasions, re-integration of the missing portions with different techniques, mimetic or recognizable (by gap, by effect, by selection of colour, by colour abstraction), and final protection . The “Cenacolo” is also the creator and supplier of the " Stretcher-frame Leonardo”, aluminium frame in constant tension that allows to keep uniform and controlling the tension across the canvas over the time (natural temperature variations and relaxations). Instead, the paintings on wood provide a number of different processes, because different is the support: the disinfestations and the consolidation of the wood, the re-establishment of the cohesion of the paint film and the preparation layer, the cleaning with different techniques based on cases, the re-integrations mimetic or recognizable, the final protection.