About Us

Yunz has proudly and successfully provided quality civil and infrastructure services to the construction industry since its establishment in 2004. The company operates from Castle Hill, Sydney, and currently services all of NSW and the ACT.


As a Level 1 Accredited Service Provider our core business is the construction and/or relocation of overhead and underground LV & HV electrical assets to provide connection of supply to residential, commercial and industrial developments.


These works may include excavation & surface restoration, electrical & communications ducting systems, cable installations and jointing, substation installations, street lighting, undergrounding of overhead networks for streetscaping or road widening projects. *Please see “Services” for a full listing of what we offer.




We have developed a comprehensive management system which has been incorporated into all areas of the company’s operations. These comprehensive systems have lead to the investment in skills training, safety methods and safety equipment, like our fleet of Non Destructive Digging units to enhance our safety offering and compliment our incident free record.


In addition to privately funded infrastructure projects, Yunz also provides alterations, relocations and new installations for NSW electrical supply authorities.


The company maintains a fully owned and purpose equipped fleet of Civil Plant, Tippers, Non Destructive Excavators, Site Vehicles and ancillary equipment which allows Yunz maximum control over the allocation of project resources.




Yunz holds Level 1 Accreditation with the NSW Dept. of Trade & Investment, Regional Infrastructure & Services and all personnel are individually authorized by the respective supply authorities.


Our Management Systems all allow ongoing skills monitoring and training programs ensure that all Yunz personnel remain fully competent with their skills and respective duties.


Yunz operates in accordance with all applicable Federal, State and Local Government legislation and is National Code compliant for both the Construction and Power Industries.

About Us | Yunz Contracting P/L

The individual management systems are maintained in accordance with:


AS NZS / ISO 9001 – Quality Management Systems


AS NZS 4801 – Occupational Health and Safety Management Systems


AS NZS / ISO 14001 Environmental Management Systems


Peter Jans
Company Director

About Us | Yunz Contracting P/L