IRRIGATION WORKS specialise in pasture, vineyard, orchard and arable irrigation and effluent disposal. Based in the Hawkes Bay and Manawatu regions, Irrigation Works supplies effective irrigation solutions to the North Island of New Zealand. Irrigation Works offer a full service from consultation and planning, to irrigation installation and follow-up service.Zimmatic centre pivots :: Irrigation Works are New Zealand Zimmatic agents. Zimmatic centre pivots provide farmers worldwide with the best quality, highest performing irrigation systems.