4399 Other specialised construction activities n.e.c.

This subcategory includes:

• scaffold and work-platform erecting and dismantling works, excluding rental of scaffolding and work platforms

This subcategory excludes:

• rental services of scaffolding without erection and dismantling, see 77.32.00

This subcategory includes:

• casting of concrete in form and other works, generally making use of concrete (general foundations, base courses, raft foundations, stanchions, floors etc.)
• works involving the construction of form and reinforcement
• consolidation of foundations
• erection works of reinforced concrete frame requiring specialised skills or equipment due to its size or the method used
• construction of domes and thin shells in concrete
• special trade construction works involving steel bending and welding for reinforced concreting on construction projects

This subcategory excludes:

• prefabrication of concrete members for construction, see 23.61.12
• ready-mixed concrete, see 23.63.10
• construction works involving the paving of streets, highways and public sidewalks, see 42.11.20
• construction works for bridges and elevated highways, see 42.13.20
• construction works for tunnels, see 42.13.20

This subcategory includes:

• installation, assembly and erection services for prefabricated structures and constructions

This subcategory excludes:

• assembly and erection of complete buildings, see 41.00.3 , 41.00.4
• erection services of prefabricated steel structures for building completion and finishing, see 43.35.09
• erection services of prefabricated structural steel components, see 43.42.11

This subcategory includes:

• rental services of cranes and other building equipment which cannot be allocated to a specific construction service, with operator

This subcategory excludes:

• rental of construction equipment with operator for a specific construction service, see the specific construction service in section F
• rental of construction machinery and equipment without an operator, see 77.32.00

This category excludes:

• construction of special concrete or steel frameworks for buildings, see 43.42.11

This subcategory includes:

• work with specialist access requirements necessitating climbing skills and the use of related equipment (e.g. working at height on tall structures)
• construction works of refractory linings for furnaces etc.
• erection works for construction site safety equipment
• erection works for billboards or advertising columns
• other specialised construction works n.e.c.

This subcategory also includes:

• renovation, renewal, reconstruction and retrofitting works for historical and archaeological sites and buildings