horn quieter and a higher pitch

[TomBear]

after a accident in my clio last week and afterwards i noticed my car horn sounded abit squeaky

the garage that i took it to (to repair the dents and the bumper etc etc) gave it a quick clean which helped but not as good as it used to be

Any ideas?

 

[StevenMc29]

is the actual horn itself damaged? I think its located at the front passenger side of the car.

 

[TomBear]

possibly they did summat to it which made it better (like clean it) but i cant find it