| 90650000 | Asbestos removal services | Cleaning and sanitation services in urban or rural areas, and related services | 
                                    
                                        
                                            | 45262660 | Asbestos-removal work | Special trade construction works other than roof works | 
                                    
                                        
                                            | 42160000 | Boiler installations | Machinery for the production and use of mechanical power | 
                                    
                                        
                                            | 45400000 | Building completion work | Construction work | 
                                    
                                        
                                            | 45210000 | Building construction work | Works for complete or part construction and civil engineering work | 
                                    
                                        
                                            | 45110000 | Building demolition and wrecking work and earthmoving work | Site preparation work | 
                                    
                                        
                                            | 45300000 | Building installation work | Construction work | 
                                    
                                        
                                            | 45312200 | Burglar-alarm system installation work | Alarm system and antenna installation work | 
                                    
                                        
                                            | 45000000 | Construction work | Construction and Real Estate | 
                                    
                                        
                                            | 45233000 | Construction, foundation and surface works for highways, roads | Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork | 
                                    
                                        
                                            | 45216112 | Court building construction work | Construction work for buildings relating to law and order or emergency services and for military buildings | 
                                    
                                        
                                            | 45451000 | Decoration work | Other building completion work | 
                                    
                                        
                                            | 45315100 | Electrical engineering installation works | Electrical installation work of heating and other electrical building-equipment | 
                                    
                                        
                                            | 45310000 | Electrical installation work | Building installation work | 
                                    
                                        
                                            | 45222300 | Engineering work for security installations | Defence and security | 
                                    
                                        
                                            | 45261000 | Erection and related works of roof frames and coverings | Roof works and other special trade construction works | 
                                    
                                        
                                            | 45340000 | Fencing, railing and safety equipment installation work | Building installation work | 
                                    
                                        
                                            | 45312100 | Fire-alarm system installation work | Alarm system and antenna installation work | 
                                    
                                        
                                            | 45343000 | Fire-prevention installation works | Fencing, railing and safety equipment installation work | 
                                    
                                        
                                            | 45430000 | Floor and wall covering work | Building completion work | 
                                    
                                        
                                            | 45432110 | Floor-laying work | Floor-laying and covering, wall-covering and wall-papering work | 
                                    
                                        
                                            | 50531200 | Gas appliance maintenance services | Repair and maintenance services for non-electrical machinery | 
                                    
                                        
                                            | 44221300 | Gates | Windows, doors and related items | 
                                    
                                        
                                            | 45441000 | Glazing work | Painting and glazing work | 
                                    
                                        
                                            | 77314000 | Grounds maintenance services | Planting and maintenance services of green areas | 
                                    
                                        
                                            | 45331000 | Heating, ventilation and air-conditioning installation work | Plumbing and sanitary works | 
                                    
                                        
                                            | 43328000 | Hydraulic installations | Construction equipment | 
                                    
                                        
                                            | 45421148 | Installation of gates | Joinery work | 
                                    
                                        
                                            | 45421141 | Installation of partitioning | Joinery work | 
                                    
                                        
                                            | 45213400 | Installation of staff rooms | Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport | 
                                    
                                        
                                            | 51310000 | Installation services of radio, television, sound and video equipment | Installation services of communications equipment | 
                                    
                                        
                                            | 45320000 | Insulation work | Building installation work | 
                                    
                                        
                                            | 45112700 | Landscaping work | Excavating and earthmoving work | 
                                    
                                        
                                            | 45432111 | Laying work of flexible floor coverings | Floor-laying and covering, wall-covering and wall-papering work | 
                                    
                                        
                                            | 45313000 | Lift and escalator installation work | Electrical installation work | 
                                    
                                        
                                            | 50750000 | Lift-maintenance services | Repair and maintenance services of building installations | 
                                    
                                        
                                            | 45262500 | Masonry and bricklaying work | Special trade construction works other than roof works | 
                                    
                                        
                                            | 45351000 | Mechanical engineering installation works | Mechanical installations | 
                                    
                                        
                                            | 45350000 | Mechanical installations | Building installation work | 
                                    
                                        
                                            | 44211100 | Modular and portable buildings | Prefabricated buildings | 
                                    
                                        
                                            | 45213150 | Office block construction work | Construction work for commercial buildings, warehouses and industrial buildings, buildings relating to transport | 
                                    
                                        
                                            | 45450000 | Other building completion work | Building completion work | 
                                    
                                        
                                            | 45453000 | Overhaul and refurbishment work | Other building completion work | 
                                    
                                        
                                            | 45440000 | Painting and glazing work | Building completion work | 
                                    
                                        
                                            | 45442110 | Painting work of buildings | Application work of protective coatings | 
                                    
                                        
                                            | 45410000 | Plastering work | Building completion work | 
                                    
                                        
                                            | 45330000 | Plumbing and sanitary works | Building installation work | 
                                    
                                        
                                            | 44211000 | Prefabricated buildings | Structures and parts of structures | 
                                    
                                        
                                            | 45216113 | Prison building construction work | Construction work for buildings relating to law and order or emergency services and for military buildings | 
                                    
                                        
                                            | 45453100 | Refurbishment work | Overhaul and refurbishment work | 
                                    
                                        
                                            | 44613700 | Refuse skips | Large containers | 
                                    
                                        
                                            | 50500000 | Repair and maintenance services for pumps, valves, taps and metal containers and machinery | Repair and maintenance services | 
                                    
                                        
                                            | 50700000 | Repair and maintenance services of building installations | Repair and maintenance services | 
                                    
                                        
                                            | 50883000 | Repair and maintenance services of catering equipment | Repair and maintenance services of hotel and restaurant equipment | 
                                    
                                        
                                            | 50720000 | Repair and maintenance services of central heating | Repair and maintenance services of building installations | 
                                    
                                        
                                            | 50710000 | Repair and maintenance services of electrical and mechanical building installations | Repair and maintenance services of building installations | 
                                    
                                        
                                            | 50413200 | Repair and maintenance services of firefighting equipment | Repair and maintenance services of checking apparatus | 
                                    
                                        
                                            | 50610000 | Repair and maintenance services of security equipment | Repair and maintenance services of security and defence materials | 
                                    
                                        
                                            | 50230000 | Repair, maintenance and associated services related to roads and other equipment | Repair, maintenance and associated services related to aircraft, railways, roads and marine equipment | 
                                    
                                        
                                            | 45233141 | Road-maintenance works | Construction, foundation and surface works for highways, roads | 
                                    
                                        
                                            | 44212310 | Scaffolding | Structural products and parts except prefabricated buildings | 
                                    
                                        
                                            | 45262100 | Scaffolding work | Special trade construction works other than roof works | 
                                    
                                        
                                            | 45100000 | Site preparation work | Construction work | 
                                    
                                        
                                            | 09331000 | Solar panels | Solar energy | 
                                    
                                        
                                            | 45321000 | Thermal insulation work | Insulation work |