No. Not every uPVC window comes with a screen and this feature isn’t available from every supplier in New Zealand.
Any ThermaScreen windows without openings (fixed windows) do not come with screens since they cannot be opened. If desired, your windows from ThermaScreen can also be ordered without screens. Just as there is no surcharge for adding insect screens, there will be no surcharge for removing screens from an order either.
For all windows that come with screens, the screens can be removed when desired. This is most often done for cleaning, but the screens can also be stored during winter months when windows aren’t opened as often or when insects aren’t present, then re-installed as the weather warms and insects become more abundant.