Welcome to Geofirst Pty Ltd

• Geofirst is a privately owned, Illawarra based provider of specialist geotechnical consulting services.   
• Geofirst is a registered body corporate in NSW under the Building and Development Certifiers Act 2018 
• Our aim is to provide the most economical as well as practical geotechnical solutions to our clients/stakeholders for their current or upcoming project(s).
• The company is managed by a Chartered Professional Engineer, Mr. Long Tsang, who has over 18 years of geotechnical engineering experience in Australia. 
• Long's experience lies in geotechnical investigations and design solutions for residential subdivisions, residential and commercial developments, landslide and slope stability risk assessment, tunnel constructions, roads and infrastructure projects in the Sydney Basin, Wollongong, Southern Highlands and the South Coast. 
• Long is a Registered Professional Engineer of Queensland (RPEQ).
• Long is a Registered Professional Engineer of Victoria (RPEV).
• Long is a registered certifier in Road and Drainage and Engineer Geotchnica in NSW under Section 6 of the Building and Development Certifiers Act 2018. 
• We are a group of experienced and young geotechnical engineers who are all expertise in their fields. Our enthusiastic attitude, excellent quality advice, and efficient services make us a solid reputation within the geotechnical society in the Wollongong and Sydney areas.

Geofirst offers a wide range of consulting services listed below:

• Geotechnical Certification - WCC Form M11
• Geotechnical Certification - road and drainage
• Earthwork Supervision
• Geotechnical Investigation
• Groundwater Monitoring
• Seepage Analysis
• Pavement Design
• Pavement Assessment and Maintenance
• Footing Design (i.e. deep and shallow)
• Geotechnical Computational Modelling 
• Footing Inspection (i.e., Pile and Pad)
• Slope Risk Assessment and Management
• Inclinometer Installation and Monitoring
• Numerical Modelling of slope stability analysis
• Ground Retention and Shoring 
• Soft Ground Improvement
• AS2870 Site Classification
• Soil and Rock Classification
• Waste Classification
• Acid Sulphate Soil Assessment
• Plant Working Platform Design
• Salinity Assessment 
• On-site Waste Water (Effluent) Disposal Study
• Contamination Assessment
• Armour Rock Specification
• Vibration Monitoring
• Construction Dewatering Analysis