We design, supply and construct water treatment facilities and systems to meet New Zealand drinking water standards.

A range of methods are used, from membrane to conventional filter technologies. We design and construct high purity water systems for reverse osmosis, ion exchange, salt removal and hospital requirements.

Masons work with a variety of brands and partners to deliver high quality water systems:


Culligan offers one of the best drinking water and the largest variety of water treatment products and services available for your home or business including water softeners, water filtration systems, reverse osmosis drinking water systems, delivered bottled water, softener salt delivery, equipment installation, and repair service.

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Jim Myers and Sons

JMS supports with cutting edge water and wastewater treatment equipment and waste handling solutions that can help you meet your goals.

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Memcor products have become an industry leader in the global water treatment markets, with microfiltration and ultra-filtration solutions for drinking water, water reuse, wastewater, desalination pre-treatment and industrial process water.

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Our Environmental Projects

Motueka WWTP
Waihi Water Treatment Plant
Paeroa WTP