If the answer is yes, the first thing you should look at is your roller doors, there is probably a large gap at the top when the door is closed.
We have a size and extrusion to stop those annoying birds getting in.
Our Bird brushes come in three sizes:
We also supply two aluminum extrusions for either horizontal installation
Or vertical installation to attach the brushes to your structure.
Bird Brushes can be used for other problem areas including:
They can also be installed in Gaps between building products due to their flexible nature and robust bristles.