GSIN
*5121A
*5122A
*5123B
*5124B
*5127B
*5128B
*5129B
*5131BB
*5131BG — *Construction of One and Two Dwelling Buildings
*Construction of Multi-Dwelling Buildings
*Construction of Warehouses and Industrial Buildings
*Construction of Commercial Buildings
*Construction of Educational Buildings
*Construction of Health Buildings
*Construction of Other Buildings
*Paving Contractor Services (except mud jacking)
*Oil Road Spreading Services
*Asphalt and Joint Sealing Services
*Highways, Roads, Railways,Airfield Runways
*Bridges, Elevated Highways, Tunnels, Subways and Railroads
*Irrigation and Flood Control
*Waterways, Harbours, Dams and Other Water Works
*Sewers/ Drainage
*Power Distribution and Transmission Lines
*Pipeline Construction
*Construction for Mining and Manufacturing
*Dredging
*Dredging Services - Land Based
*Dredging Services - Floating Plant
*Construction Services, Not Elsewhere Specified
*Engineering Works, Not Elsewhere Specified
*General Heavy Construction
*General Marine Construction Work
*Foundation Work
*Pile Driving
*WATER WELL DRILLING
*Water Well Services
*Water Well Drilling
*Roofing, Siding and Sheet Metal Installation Services
*Roofing, Asphalt and Shingle Services
*Building Sheet Metal Services
*Eavestroughing Services
*Industrial Waterproofing Membrane Systems (Roofing)
*Roofing and Waterproofing
*Concrete Work
*Concrete Cutting and Coring Services
*Paving - Parking Areas
*Steel Bending and Erection
*Structural Steel Work
*Welding for Construction
*Welding Contractor Services
*Masonry, Stonework
*Masonry Work
*Rock, Stone Crushing Services
*Other Special Trade Construction Work
*Chimney Repair Services
*Smokestack Services
*Heating (except electric heating) and Air Conditioning
*Heating Contractor Services (except electrical heating)
*Air Conditioning Contractor Services
*Ventilating Services Contractors
*Boilers, Repair and Cleaning Services
*Pipe Insulations, Contractors
*Boilers - Installation and Repair
*Ductwork - Repair and Cleaning Services
*Heating, Ventilation and Air Conditioning Maintenance & Inspection Services
*Air Distribution Systems - Installation and Repair
*BACS - Building Automation Control Systems
*Water Plumbing and Drain Laying Work
*Sprinkler Systems, Installation and Repair
*Plumbing Contractor Services
*Sewers and Drains
*Gas Fitting Construction Work
*Building Gas System (Medical/Industrial) Contractors
*Electrical Installations and Major Repairs
*Electrical Contractor Services, Class A Licence
*Electrical Inspections
*Building Fire Protection Systems
*Building Lighting - Installation and Repair
*Power Generation System - Installation and Repair
*High Voltage Distribution System (above 600-Volt) - Installation and Repair
*Fire Alarm & Detection Systems - Installation and Repair
*Uninterruptible Power Supply System - Installation and Repair
*Standby Power Generator Systems - Installation and Repair
*Building Intrusion Detection System - Installation and Repair
*Security Control Systems - Installation and Repair
*Building Intercommunication System - Installation and Repair
*Building Public Address Systems - Installation and Repair
*Building Electrical Controls - Installation and Repair
*Building Electronic Controls - Installation and Repair
*Building Environmental Control Systems Servicing
*Low Voltage Electrical Equipment & Systems - Repairs, Testing, Verification & Alternatives
*Uninterruptible Power Supply (UPS) System - Maintenance
*Fire Alarm System Maintenance (building related)
*Security Systems Maintenance - Interior (built-in) Buildings
*Insulation Work
*Pipe Insulations, Contractors
*Building Insulation Contractor Services
*Fence Construction
*Fencing and Railing Work
*Elevator Installation
*Elevator Maintenance (buildings)
*Other Installation Work
*Building/Installation Special Trade Services, Not Elsewhere Specified
*Doors and Windows Installation and Repair Services
*Doors Metal Overhead, Installation and Repair
*Doors, Shielded, Maintenance and Repairs
*Metal Doors and Frames, Installation and Repair
*Overhead Door - Maintenance
*Door and Window Hardware, Installation and Replacement
*Carpet Laying/Installation
*Window Blinds - Installation and Repair
*Refrigeration Systems - Installation and Repair
*Chillers - Installation and Repair
*Digital Control Systems - Installation and Repair
*Building Computer Cabling Installation
*Fire Suppression/Extinguishing Systems - Dry Chemical
*Mechanical Contractor Services, Not Elsewhere Specified
*Glazing and Window Glass Installation
*Plastering Work
*Painting Work
*Painting Services - Interior
*Painting Services - Exterior
*Traffic Line Marking
*Floor and Wall Tiling Work
*Other Floor Laying and Wall Papering Work
*Flooring Contractors
*Floor Sanding and Refinishing Services
*Epoxy Application Resurface Floors Service
*Tile Contractors, Vinyl and Linoleum
*Carpentry and Flooring
*Carpentry Services
*Wood and Metal Joinery and Carpentry
*Metal Fabricators (Iron and Steel)
*Ironwork Contractors
*Textiles Trade Services
*Textile Trade Service-Laminating, Insulation, DND Only
*Textile Trade Service, Coating Only
*Textile Trade Service, Approved Sub-Contractors (Clothing Assembly Only)
*Textile Trade Service, Film Laminator
*Textile Trade Service, Fibre Laminator, DND Only
*Textile Trade Service, Design Services, Clothing
*Interior Fit-Up/Renovations
*Building Exterior Cleaning
*Sandblasting Services
*Protective and Alarm Systems
*Building/Installation Special Trade Services, Not Elsewhere Specified
*General Contractor Services, Not Elsewhere Specified
*General Machine Shop Services
*Machine Shop Services, Precision
*Other Building Completion and Finishing
