Hi @MattHalford,
Welcome to the Bunnings Workshop community, it is wonderful to have you with us.
Unfortunately, we do not currently offer a fly screen fitting service; however, we do sell everything you will need to do it yourself, and it is not overly difficult to do.
Check out How To Replace Flyscreen Mesh for some guidance on the process, materials and tools required to replace your flyscreens.
If there is anything you aren't so sure about, please let me know so I can clarify.
Jacob
