Specialised works categories

This involves the excavation, restoration, and modification of earth volumes using any means and regardless of the nature of the soil to be excavated or restored: vegetative, clay, sand, gravel, or rock.

This refers to the direct intervention for restoration, as well as the execution of ordinary and extraordinary maintenance of decorated surfaces of immovable cultural heritage, stone artifacts, wall paintings, paintings on canvas, panel paintings, or other material supports, stuccoes, mosaics, painted and unpainted plasters, multi-material artifacts, polychrome and non-polychrome wooden artifacts, artifacts in bone, ivory, wax, ceramic and glass artifacts, metal and alloy artifacts, materials and artifacts made of natural and artificial fibers, leather and hide artifacts, musical instruments, scientific and technical instruments.

This involves the direct intervention for restoration, as well as the execution of ordinary and extraordinary maintenance of paper and parchment artifacts, photographic materials, and digital media.

This involves the supply, installation, and maintenance or renovation of plumbing and sanitary systems, kitchen and laundry systems, gas and fire-fighting systems, regardless of their level of importance, complete with all related masonry works, complementary or accessory components, to be carried out in general works that have already been completed or are under construction.

This refers to the supply, installation, and maintenance or renovation of transport systems, elevators, escalators, lifting and transport equipment, complete with all related masonry works, complementary or accessory components, to be carried out in general works that have already been completed or are under construction.

This involves the supply, installation, and maintenance or renovation of pneumatic and anti-intrusion systems, complete with all related masonry works, complementary or accessory components, to be carried out in general works that have already been completed or are under construction.

This involves the supply, installation, maintenance, and renovation of wood carpentry and joinery, interior and exterior fixtures, interior and exterior claddings, flooring of any type and material, and other artifacts in metal, wood, plastic materials, and glass and similar materials.

This refers to the construction, maintenance, or renovation of walls and partitions of any type, including plastering, smoothing, painting, varnishing, and similar activities, as well as the supply, installation, maintenance, or renovation of general works finishes such as thermal and acoustic insulation, suspended ceilings, and fire barriers.

This involves the supply, installation, and renovation of waterproofing works using any material and similar activities.

This involves the supply, installation, systematic maintenance, or renovation of automatic systems for traffic lighting and safety on roads, railways, subways, or tramways, including information detection and processing systems.

This refers to the supply, installation, maintenance, or renovation, as well as the execution of non-illuminated road signage, including vertical, horizontal, and complementary signage.

This involves the supply, installation, and maintenance or renovation of structural devices, such as expansion joints, support devices, and anti-seismic devices for road and railway bridges and viaducts.

This involves the supply, installation, and maintenance or renovation of devices such as barriers, crash cushions, fences, and similar items aimed at containing and ensuring the safety of road traffic flow.

This involves the supply, installation, and maintenance or renovation of rockfall barriers and similar items aimed at containing and protecting against falling rocks and avalanches, including interventions with mountaineering techniques.

This refers to the production in an industrial plant and the on-site assembly of prefabricated structures in normal or prestressed reinforced concrete.

This involves the construction and ordinary and extraordinary maintenance of waste incineration plants and associated systems for flue gas treatment and material recovery, including machinery for pre-selection, composting, and the production of fuel derived from waste, complete with all related masonry works, complementary or accessory components, whether specific or networked.

This involves cleaning any type of water using special technical means and transporting the resulting material to sites prescribed by current regulations.

This refers to the construction, maintenance, or renovation of electrical systems and apparatuses serving any electricity generation plant.

This involves the supply, installation, and maintenance or renovation of external telephone lines and high-frequency telecommunications systems, regardless of their level of importance, complete with all related masonry works, complementary or accessory components, to be carried out separately from the execution of other systems, in general works that have already been completed or are under construction.

This involves the production in an industrial plant and on-site assembly of steel structures.

This refers to the production in an industrial plant and on-site assembly of curtain walls consisting of metal frames and modular elements in glass or other materials.

This involves the supply, installation, and maintenance or renovation of switching systems for public or private, local or long-distance telecommunication networks for telephone, telex, data, and video over copper cables, fiber optic cables, radioelectric means, satellite telephone, radiotelephone, television, and data transmission networks, and similar systems, regardless of their level of importance, complete with all related masonry works, complementary or accessory components, to be carried out separately from the execution of other systems, in general works that have already been completed or are under construction.

This refers to the execution of special topographic surveys requiring specific entrepreneurial means and organization.

This involves the execution of geognostic surveys and subsurface explorations using special means, including environmental purposes, sample collection of soil or rock, and on-site testing.

This involves the construction of works intended to transfer the loads of structures resting on unsuitable ground, works aimed at giving the ground characteristics of resistance and incompressibility such as to stabilize the structures‘ foundation and prevent geological instability, and works to make existing structures earthquake-resistant and functional.

This involves the construction, maintenance, or renovation of water purification and wastewater treatment systems, including biogas recovery and electricity generation, complete with all related masonry works, complementary or accessory components, whether specific or networked.

This involves the dismantling of industrial plants and the complete demolition of buildings using special equipment or explosives, the cutting of reinforced concrete structures, and demolitions in general, including the collection of resulting materials, their separation, and potential recycling in the component industry.

This refers to the construction, assembly, and maintenance of elements that do not constitute technological systems but are necessary to enable better use of the city, as well as the creation and maintenance of urban green spaces.

This involves archeological excavations and closely related activities.

This involves the construction, maintenance, or renovation of pavements made of special materials, natural or artificial, as they are subjected to significant loads and stresses, such as, for example, those on airport runways.

This refers to the supply, installation, systematic maintenance, or renovation of electric traction systems for any railway, subway, or tram line.

This involves the supply, installation, and maintenance or renovation of heating systems and climate control systems, regardless of their level of importance, complete with all related masonry works, complementary or accessory components, to be carried out separately from the execution of other systems, in general works that have already been completed or are under construction.

This involves the supply, installation, systematic maintenance, or renovation of tracks for any railway, subway, or tram line, as well as braking and automation systems for marshalling yards.

This involves the supply, installation, and maintenance or renovation of internal electrical, telephone, radiotelephone, and television systems, as well as data transmission networks and similar systems, complete with all related masonry works, complementary or accessory components, to be carried out in interventions falling under the general categories that have already been completed or are under construction.

This refers to the supply, installation, and maintenance or renovation of lifting and transport systems and equipment, complete with all related masonry works, complementary or accessory components, whether specific or networked, such as cable cars, chairlifts, ski lifts, cranes, and similar systems.

This involves the production in industrial plants and on-site assembly of structures made from pre-treated wooden elements.

This involves the construction and maintenance of special roofing, regardless of how they are built, such as tensile structures, geodesic domes, retractable roofs, panelled roofing, and similar structures.

This involves the construction, installation, maintenance, and acoustic verification of noise containment works for road or railway infrastructure, such as barriers made of metal, concrete, wood, glass, or transparent plastic materials, bio-walls, cellular or alveolar walls, as well as sound-absorbing coatings for retaining walls or tunnel walls.

This involves the construction and maintenance of any underground work using non-invasive excavation technologies.