Commercial Testing

Winstone Aggregates operates a number of IANZ (International Accreditation New Zealand) laboratories providing site and lab services to New Zealand’s construction and civil engineering industries.

Our experienced technicians offer the ability to manage all areas of project quality compliance, including: construction and earthworks testing, quality control and assurance of soils and aggregates during construction, quarry product testing, site inspection, subdivisions, geotechnical investigations testing and research and assessment of material properties for pavement and engineering design.

Services include:

  • Field density
  • Dynamic cone penetrometer
  • Shear strength
  • Impact hammer
  • Sieve analysis
  • Plasticity index
  • NZ Standard / Heavy / Vibratory and Australian modified compactions


Find Commercial Testing Facilities