Exceeding Expectations of Customers through Excellence in Engineering Solutions


We are a leading Mechanical Engineering Company in Pipe and Structural Manufacturing. Established in 1996, Impact Engineering has a long history of project works for both the Tauranga and Western Bay (WBOP) councils, either directly for them or subcontracted to other companies working under allotted tenders. We are located in Tauranga, Bay of Plenty. 


We specialize in local authority utilities and we pride ourselves on bringing forward thinking and innovative ideas to you. Our future is based on commitment to our customers, with the development of new products and procedures.

Our Vision

To build a company that is recognized as a leader in the Mechanical Engineering and Servicing Industry related to Infrastructure and Reticulation.

Technical Skills

Our capabilities are:

  • Design, Build and Manage

  • Manufacture of all Steel work related to Water and Sewer Reticulation.

  • On Site Installation.

  • Pump Station Installation and Refurbishment.

  • On Site Welding and fabrication.

  • General and Technical Engineering.

  • Welding to code NZS4442, ASME IX, NZS 1554 and NZS 4711.

  • Confined space 497, 6454, 18426, 19207.

  • Hy-grade Water-main Product Training, Repair Technique & Correct Handling Procedures.

Meet our Team 

Ross McOnie
Managing Director

Ross is the Managing Director of the company. He purchased the company in 2008 and re-branded the business calling it Impact Engineering, previously known as Mathieson Engineering. 

Ross's  vast experience in the engineering field, enables him to provide innovative solutions to the challenges encounted in the Industry. 

Brent Jones
Project Supervisor

Brent oversees and manages all operations in the workshop. His role is ensuring that deadlines are met and any issues are managed correctly. 


He has been with the company for 10 years and his experience is a real asset to the company. 

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Stan Webster
Workshop Manager

Stan is our new Workshop Manger taking care of daily workshop management.  Stan also has extensive experience in the engineering industry and an in-depth knowledge of all things engineering.


Stan can be contacted for all your workshop requirements. 

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Mark Welten
General Manager

Mark has joined us as General Manager and will be taking over the day to day running of the business. Mark comes with a wealth of experience in the engineering field and an impressive catalog of projects.


Mark can be contacted for any Project Quoting, Job Planning and General Business enquiries.