Does anyone know of a company who can do powder coating???

The reason I ask, is that I have a BL cage here that arrived with one food bowl flap missing and covered with cardboard (yeah, like that will last) and a slightly bigger opening which may have housed a drop down door which was covered in electrical wire . The thing is, that although it will never win cage of the year, I can  get a couple of pieces of metal made to blank off these gaps but they will then need powder coating. It would then be an OK safehouse cage.