Efficient backflow prevention services

backflow prevention

With more than 15 years of experience installing and maintaining backflow prevention valve devices to both residential and commercial buildings water supplies, Sumich Plumbing and Drainage can complete all backflow jobs to a high standard.

Backflow prevention stops contaminated water going from your property water supply back into the main council water supply.  

They may also be installed inside properties to prevent backflow contamination between buildings on the same property, as the law requires.

Please note that we also provide plumbing maintenance and repair services.

Backflow valve installation and testing


The backflow specialists at Sumich plumbing can offer your residential or commercial property:
  • Backflow prevention testing
  • Backflow valve installation
  • Backflow valve repairs
For commercial buildings, backflow devices are required by law to be tested yearly to retain its warrant of fitness.

To enquire further, or for a free backflow installation quote, please fill out the form to the right.



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Pensioner discounts


Sumich offer a discount to all pensioners who are Gold Card holders.

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Sumich Plumbing - 1A Cron Avenue - Te Atatu South - Auckland - 0508 SUMICH (0508 786 424)
Auckland, North Shore, Auckland City, East Auckland, South Auckland, West Auckland, Te Atatu, Henderson, Remuera, Ellerslie, Mount Wellington, Albany, Newmarket, Grey Lynn, New Lynn, Avondale, Blockhouse Bay, Lynfield, New Windsor, Hillsborough, Three Kings, Waikowhai, Mount Roskill, Sandringham, Wesley, Waterview, Balmoral, Morningside, Mount Albert, Mount Eden, Owairaka, Kingsland, Sandringham, Grey Lynn, Newton, Western Springs, Point Chevalier, Westmere, Ponsonby, Herne Bay, Freemans Bay, Saint Marys Bay, Epsom, Greenlane, Newmarket, One Tree Hill, Parnell, Remuera, Mechanics Bay, Grafton, Newton, Mission Bay, Kohimarama, Saint Heliers, Orakei, Glendowie, Meadowbank, Saint Johns, Glendene, Henderson, Hobsonville, Massey, Te Atatu, West Harbour, Sawnson, Ranui, New Lynn, Glen Eden, Avondale, Waitakere City, Kumeu, Titirangi, North Shore City, Milford, Takapuna, Belmont, Devonport, Bayswater, Northcote, Birkenhead, Highbury, Hillcrest, Glenfield, Wairau Valley, Westlake, Sunnynook, Forrest Hill, Birkdale, Beach Haven, North Harbour, Albany, Greenhithe. Our North Auckland plumbers also cover East Coast Bays: Long Bay, Torbay, Waiake, Browns Bay, Rothesay Bay, Murrays Bay, Mairangi Bay, Campbells Bay, Castor Bay
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