We were one of the first manufacturers of longrun roofing iron in the South Island, commencing back in 1966 and have continued to update various machines over the years with the latest technology to offer you the latest in residential and commercial roofing options.

Cosgrove Silo's

Dan Cosgrove Ltd is New Zealand's largest silo manufacturer. Our 37 years experience in manufacture and our continual research and development guarantees quality at realistic prices. Our standard kitset silo is available in sizes from 4 - 3500 tonnes, also available on a cone base to 150 tonnes.


Our modern facility specialises in stainless steel fabrication, heavy gauge cutting and bending, and a full welding service. Our energetic and qualified staff provide a diversified range of skills ranging from production MIG welding and general fabrication to complete dairy factory construction and maintenance.


Dan Cosgroves sheet metal factory is fully equipped to manufacture Stainless steel, aluminium and steel fabrications. We manufacture Ducting, flues, transitions and have folding and forming machines to make almost anything you need. We pride ourselves on our quality workmanship and service to our customers.


Whether manufacturing grain silos and stainless steel vats to a customer's specific requirement or manufacturing the roofs for some of New Zealand's largest facilities, the Cosgrove company's management and staff work closely with New Zealand's important primary producers.

  • We are stockists of KiwiColour® pre-painted steel. With a full colour range which also includes doubled sided painted product and Zincalume.
  • We have a fully equipped sheetmetal factory for any special requirements.
  • We have a fully equipped engineering factory including a machine shop.


Here at Dan Cosgrove we believe in long lasting & trusted relationships

Farmlands Co-operative
Ruralco logo
roofing association nz
sukup logo