Hangers All

Do all commercial airlines have a repair hanger at airports they service?

Im wondering if they all have a specific hanger or is there a hanger they all use? Im speaking of if they are not at their hub.

No, many have Service Level Agreements with Maintenance providers and commercial needs usually win out here,as there is a substantial cost to setting up a maintenance facility, and that can include the ground handling equipment and the maintenance of that too.
So sometimes Commercial operators that are even competitors may have this level of maintenance performed by the opposition.
The commercial operator still has an obligation to ensure that the maintenance provider performs in the required manner and will audit them in an appropriate fashion.
This will also ensure the engineers, tooling documentation etc is up to par.

UNC Clef Hangers – All The Above