Kind of silly horsebox question...

[Chippers1]

...but I'm not sure what the answer is!
The lock on the back doors of my horsebox has broken and the key just keeps spinning around in it. My question is do I need a locksmith or a garage?!
This is the kind of lock it is:


Thanks in advance and sorry for the silly question ?

 

[SpotsandBays]

Locksmith! (When I locked myself out of my car a locksmith came to help ?)

 

[thefarsideofthefield]

OH ( mechanic ) says either garage or locksmith could do it . Perhaps ask for a quote from both ?

 

[Chippers1]

Ah excellent thank you! I will try a locksmith first then a garage