"uPVC warps and yellows in the Australian sun."
Profiles made for severe climates are weathering-tested (EN 12608 climate class S) and use a higher UV-stabiliser loading. The risk sits with unknown-origin profiles that carry no test evidence at all.
Independent reference · Australia
What uPVC windows are, how they're tested and certified in Australia, what they really cost, and how every profile system and fabricator on the market compares. Every fact links to a public source you can check.
Start here
Aluplast, Deceuninck, Kömmerling, Plustec and Schüco side by side: WERS listing, accreditation, test evidence, warranty.
Open the tables → FindFabricators by state, with the profile system each one uses and whether it makes windows here or imports them.
Browse fabricators →Our method
Most uPVC comparisons online are written by someone selling one system. We compare every brand on the same six checks, each backed by a public record: the WERS database, the AGWA accreditation register, the industry profile code, published test reports and warranty documents.
Fact check
Profiles made for severe climates are weathering-tested (EN 12608 climate class S) and use a higher UV-stabiliser loading. The risk sits with unknown-origin profiles that carry no test evidence at all.
Steel-reinforced uPVC is a deemed-to-satisfy frame up to BAL-29 under AS 3959. At BAL-40 it needs a system tested to AS 1530.8.1, or a bushfire shutter complying with Clause 3.7 over the whole window. We found no uPVC window claiming BAL-FZ.
BAL explained →A standard ~12 mm gap unit barely changes acoustics. Laminated acoustic glass, panes of different thickness and well-sealed hinged sashes do the heavy lifting.
Before you sign
Built from AS 2047, AS 3959, the NCC and AGWA guidance. A good supplier answers all of them without hesitation.