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Our History

Thermosash Commercial Limited commenced operations in Auckland, New Zealand in June 1973 under the direction of the five founding Engineers who had, through their senior positions with Crittall Metal Windows, accumulated over 120 years of expertise in the Commercial Window Industry.

Under its founder, Mr Laurie Hayes and their modern integrated suites, Thermosash quickly developed a reputation for innovation and expertise.

By 1987 Thermosash was the largest commercial window and curtainwall designer, manufacturer and contracting company in New Zealand. The company, today, owns Window Engineering Consultants (a facade testing laboratory) and Woods Glass (NZ) Limited (a specialist commercial glazing operation).

The building industry, particularly over the last decade, has passed more and more responsibility with performance specifications, tight lead times and fast track construction programmes onto the metal window industry. The level of expertise required, due to the technology available today, has forced major investment in plant and technical/professional staff to keep abreast with this demand. This has helped to widen the gap between ourselves and our competitors.

From our exposure to American cladding technology since the early 1980's and our numerous trips during this period to keep ourselves abreast with the latest technology available in this specialist area world-wide, Thermosash has consciously developed itself and directed its long-term strategy towards the commercial total cladding market.

As architectural fashion has dictated a move from total glass curtain wall systems and with the development in technology of sophisticated, maintenance free, long-life paint systems (Kynar 500 based fluoropolymer paint), there has been a distinct move towards the use of light-weight, fully integrated painted metal/glass cladding systems to lighten dead-loads on the structure. The responsibility for the main contractor is limited to the construction of the structural frame with larger allowable construction tolerances than the forming of traditional window openings, along with the resultant junctions between trades. A total cladding package passes the responsibility for design, structural, seismic and weatherproofing of the external envelope away from the main contractor/consultants to a specialist supplier, generally with a speed to the overall construction with an end product totally engineered for long-term durability and performance.

Thermosash, early in 1988, made two significant advances within our industry, making this technology available to the New Zealand market:

  • It built a world-class façade testing facility to enable specialist testing of the custom designed products, particularly façades for individual projects
  • It gained extensive surface finishing expertise, having installed one of the most sophisticated PVF 2 paint and powder coating operations in New Zealand at Aluminium Surface Finishers Limited's Auckland, New Zealand plant, now owned and operated by Rotorua Electrostatic Painters Limited

In 1992, Thermosash linked with SPACETECH PTY. LTD of Australia and became the agent for their Oktalok space frames and permanent fabric architectural membrane systems. Spacetech subsequently joined forces with Skyspan in early 2000 for the development and use of these light-weight building materials. Also in 1992, an association with REYNOLDS METAL COMPANY of the United States was formed for their product Reynobond®, a light weight aluminium composite panel with a class A PVF2 (PPG Duranar) paint finish which is considered to be the most sophisticated, durable external architectural finish available.

In 1995 Thermosash entered into a Technology Agreement with DASOLAS INTERNATIONAL for their systems Unisun C and Unisun F, covering Australia and New Zealand. The Museum of New Zealand (in Wellington) was Thermosash’s first Dasolas solar shading contract using this European market leading technology. This technology will become an integral element in future facade design to ensure saving in mechanical services initial cost and downstream running costs.

Today, our head office and main manufacturing unit operates from Auckland's North Shore - one of the most modern operations in Australasia with state-of-the-art imported automated machinery.