Our Vision

HERDFLOW® delivers premium dairy shed solutions for farmers throughout New Zealand and Internationally. Increasing productivity through maximising cow comfort and cow flow coupled with the provision of excellent working conditions for milkers  is the core philosophy behind HERDFLOW®.


Our Vision

To deliver confidence and value to our customers through design, innovation and expert focus on superior animal handling, milk harvesting and work place solutions.

Our Mission

Together we will work as a team to customise solutions that meet our customer expectations. We do this by using expert industry knowledge, key industry partners, a focus on quality outcomes with least hassle and no surprises.

Our Values

We understand that the decision to undertake major construction work on a dairy farm requires careful consideration. That's why we base all of our projects around the following four values:

Quality - When we talk about quality, we're not only referring to the workmanship of the products and materials used, but the superior level of service you'll receive.  In addition to the proven engineering expertise of our team, you'll encounter our passion for the dairying industry.

Flexibility - We have standard plans for efficient designs and flow, but we're also experienced enough to undertake any level of customisation.

Experience - At HERDFLOW® we have more industry-specific expertise than your typical dairy shed builder, and from this stems our new approach to design and construction.  We take into consideration every step of the milking process; from the moment the first cow steps onto the yard until the last cow leaves.

Partnership - At HERDFLOW® we know it's the little things that count.  Sure, the final product is important, but the relationship that is forged along the way is what makes us stand out from the rest.  The best relationships are built on understanding and respect.  When you choose HERDFLOW®, you are in fact getting a team of dedicated and passionate experts all working together in partnership to provide you the best product to meet your farm requirements.  After all, isn't that what partners do?

Our People

Damian Roberts // Manager

Daniel Gorton // Director

John Perrin // Director


John is a Registered, professional Farm Management Consultant and has been consulting and advising farmers since 1975 He is a Director and shareholder of Perrin Ag Consultants a well known farm consultancy business based in Rotorua, which provides national and international consultancy on a wide range of farming systems.

Beginning in the mid 1990's he became heavily involved in the design and direct management of dairy conversion projects. That work gave him very good experience in all aspects of dairy development, which he now brings to Reporoa Engineering for the benefit of farmers.

During 2008 John became a Director of Reporoa Engineering (1982) Ltd, bringing his extensive farm knowledge and experience to lead the business into new markets and opportunities nationally and internationally. One such development was the creation of the HERDFLOW product brand. It also enabled him to understand the whole process of dairy development from the famers point of view. Thus allowing Reporoa Engineering to structure their development proposals around providing quality installations that provide excellent cow flow, user friendly and ensure there are no unwelcome surprises such as cost overruns for farmers at the end of the project.

John is also a Director of Dairy Projects International, a company involved in overseas dairy project development a Director of CVM Herdflow a joint venture dairy shed construction company in Chile and also Dairy Projects UK Ltd, a company involved in dairy development and backing gate sales in the United Kingdom. John also operates his own bull/beef farm in his spare time.