Two iconic roofing brands come together


Two of New Zealand’s oldest roofing companies, Calder Stewart Roofing and Dimond Industries, will come together under the new name of Dimond Roofing. 

The new brand has been created to represent the best parts of two iconic roll-forming brands that have existed in New Zealand for many years.

Dimond Roofing is now the largest roll-former of long run roofing material in New Zealand, with sites from Invercargill to Whangarei. It employs more than 170 staff at its 11 locations around the country.

The move comes after Fletcher Building completed the purchase of Calder Stewart Roofing in April 2017 to operate alongside Dimond Industries, under its Fletcher Steel group of companies.

Fletcher Steel general manager Hamish McBeath says with the purchase of Calder Stewart Roofing last year, Fletcher Steel has the opportunity to think about how the two roofing businesses come together in the marketplace.

“Both brands have a strong heritage, but the opportunity to have them come together under one brand is exciting. Also, as part of the purchase agreement, there is a time limit of how long we can use the Calder Stewart Roofing name for,” Mr McBeath says.

“So it has been a priority for the team over the past six months to work through our options and develop a new brand that encapsulates the best elements from each existing brand.”

Dimond Roofing will continue to work hard to bring innovative roofing solutions to the residential and commercial sectors, such as the recently developed Tricore insulated roof system, designed and tested in conjunction with Nuralite.

Fletcher Steel head of marketing Neil Watson says the process to create a new brand has been a rewarding experience for everyone involved.

“With such a strong heritage we were able to work through which elements were most important to our customers and the architectural community,” Mr Watson says.

“The new brand will be rolled out in the South Island initially at our sites in Dunedin and Christchurch, with the remaining sites being rebranded through the year.

“Our people are passionate about helping customers gain the edge in their markets, and the new brand will support this passion going forward.”


About Fletcher Steel 

Fletcher Steel trades under the brands Easysteel, Dimond Roofing, Fletcher Reinforcing, Fletcher Wire Products and Pacific Coil Coaters.

It employees more than 650 staff through its national network of steel processing and distribution sites.

It services the manufacturing, construction, steel fabrication, roofing and general engineering sectors in New Zealand and the Pacific Islands, supplying high quality steel products.

Trust is a key value the business focuses on, enabling its customers to be assured when they buy steel from any of its brands they are receiving goods that can be relied on to meet the required Standards every time. For more information visit


About Fletcher Building 

Fletcher Building’s vision is Building better together — and this unites 20,000 people who work in 35 different businesses across more than 40 countries around the world.

It manufactures and distributes high quality building products, and builds and delivers homes, commercial buildings and major infrastructure projects.

For more information please visit

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