Construction consultancy; Providing information relating to building construction; Building construction consultancy; Construction of building interiors structures for decoration; Installation of advertising signage; Construction of civil engineering structures; Repair of civil engineering structures; Carpentry services; Pipeline construction; Construction and repair of air pollution prevention and control projects, namely, air purifying apparatus; Construction services, namely, installation of environmental containment systems; Construction of building walls that are leak-proof; Construction of building roofs that are leak-proof; Construction of waterproof foundations for building; Construction of waterproof basements for building; Building sealing; Damp-proofing of buildings; Installation and repair of air conditioning apparatus; Installation and repair of heating equipment; Pipe laying services; Plumbing and electrical contractor services; Aircraft repair and maintenance; Vehicle repair and maintenance; Repair and maintenance of ships; Automobile repair and maintenance; Machinery installation and repair; Machinery installation, maintenance and repair; Electric appliance installation and repair; Services of electrician contractors; Freezing equipment installation and repair; Medical apparatus repair; Installation of cables for Internet access; Cleaning of buildings; Janitorial service for maintaining environmental sanitation; Janitorial services, namely, disinfecting service for maintaining environmental sanitation; Housekeeping services in the nature of cleaning of residential homes; Disinfecting of surgical instruments; Sterilization of medical instruments; Installation and repair of electrical appliances; Maintenance, servicing and repair of household and kitchen appliances; Repair of household and kitchen appliances; Installation of kitchen equipment; Installation and repair of sanitary ware; Installation and repair of hand wash stations for sanitary purposes; Rental of construction equipment; Rental of construction machines and apparatus.