Have it done at a paint specialist shop. Casa just hires ordinary paint guys and make them wear Honda shirts. How do I know? My el-cheapo paint guy works for the casa, too. Not very skilled pero ok lang sakin kasi cheap lang. Pero kung sisingilin niya ko ng presyong casa, no thank you! hehehe.

Palitan mo yung affected area. Graft new sheetmetal on. Pero dapat mas malaki dun sa affected area ang alisin niyo para hindi kumalat and do proper paint prep.