The Delta Commercial Suite was originally designed in the early 1970s and has been progressively upgraded and developed to become the clear market leader, renowned as being extremely robust and offering exceptional performance. The best testimonial for this product to substantiate the pedigree comes from Wispeco, the largest window manufacturer in the African Continent who have sought technology agreements from Thermosash for this suite.
Frame Size
Low-carbon aluminium windows, doors and sliders
Thermosash partners with a local NZ-owned extruder achieving a lower carbon footprint than the global average - offering reduced upfront carbon emissions. (find out more about our Sustainable Aluminium).
Aluminium is 100% recyclable and all aluminium from refurbished sites and from our manufacturing process is environmentally managed back to our key suppliers and processed back into raw billet form.