heron plumbing

 Back-flow prevention

  Protect Your Water Supply From Costly Contamination


Few of us think about back-flow with our water. We turn on the tap and clean water comes out. On the other hand we flush away waste water and it’s gone forever. But there is a risk to your health if there is a cross-connection between the incoming water supply and a waste water source.

This can happen for a wide variety of reasons such as a drop in water pressure, high demand can cause a fall in pressure or the water system was incorrectly installed. All of these cause a vacuum or siphon effect which can result in back-flow of waste water into your drinking water.

This situation is mainly in commercial operations such as laundries, garden nurseries, golf courses and many others.

At Heron Plumbing our technicians are trained in identifying potential back-flow situations and install back-flow prevention systems to protect you and your water supply.

We offer a back-flow consultation service to advise you of any risks you face. Clearly these health risks can be very expensive so it’s extremely important that you assess your back-flow risks and then install a back-flow prevention system so that your people and customers do not suffer any ill-health risks.

If you already have a back-flow system in place, we can provide an Independently Qualified Person (IQP) to undertake annual certifying inspections required for building insurance & warrant of fitness.

If you need to check your water supply and waste output to prevent back-flow at your premises, call us on 0800 888 287 or email admin@heronplumbing.co.nz and we will be glad to help you.



Contact Info

0800 888 287

Our Office

146 Central Park Dr


Open Office Hours

Open 24 Hours


Get in Touch

Phone : 09 836 4009
Freefone: 0800 888 287
E-mail : admin@heronplumbing.co.nz


Choose Master Plumbers and Accredited Agents – Not Sub-contractors

Heron Plumbing are accredited agents for Auckland for Rheem Hot Water Cylinders. We are also long-standing members of the Master Plumbers Association.

We have hot water cylinder service and repair guys operating in Henderson, Albany, North Shore, West Auckland, Wairau Park, Westgate, and Auckland Central.

If you need a service, repair, installation or simply want some expert advice on hot water cylinders, call us on 0800 888 287 or email admin@heronplumbing.co.nz and we will be glad to help you.



Call: (0800) 888-287

A Plumber Isn’t Just For Emergencies

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