Toitu - net carbon zero

SWE – proud to be a

Toitū net carbonzero certified business

Since 2017

We provide end-to-end solutions for the efficient management of water, power and wastewater. We act as strategic partners for our clients in the wine industry, on civic projects, and the primary sector.

About Us

We're a 100% New Zealand owned company with our head office in Marlborough. We have a specialist team of experienced and talented staff, a full fabrication workshop, and a commitment to bringing you impeccable service and the best quality products.


We design, supply and install a range of irrigation solutions for clients from a range of industries. Working closely with our clients, we focus on finding solutions which meet individual needs now and into the future. We are a member of IrrigationNZ and Blue Tick accredited.


We provide a full range of water engineering services to wineries. From new installations to servicing work and winery wastewater systems, audits and our ‘planned maintenance schedule’. We pride ourselves on a proactive approach to our winery support services.

As featured on TVNZ’s Rural Delivery

A leading technology and consultancy company in Marlborough

SWE  is a leading technology and consultancy company in Marlborough, New Zealand – specialising in water engineering, electrical and automation solutions and irrigation. We design, build, install and service irrigation, fertigation, stockwater, effluent, and wastewater systems, as well as undertaking civic water engineering projects.  We have an excellent team of qualified and experienced professionals who are committed to delivering the best quality and service to our valued clients.

We have proven expertise in delivering outstanding value in terms of quality, environmental and economic outcomes. We pride ourselves on acting as strategic partners for our clients, always keeping an eye on the big picture and proactively finding ways to add value. We manage projects on behalf of our clients, with a planned and systematic approach – leaving our clients free to focus on their core business, knowing it’s all taken care of.

Our focus is on providing tailored solutions with expert design, excellent advice, and exceptional service.

End-to-end solutions for water, wastewater and power

When we say end-to-end solutions, we really do mean it. Whether you need a winery system audit, vineyard irrigation, a new or improved WWTP system or filtration products - we've got you covered.