If you can't find a Blacksmith here you are probably in the UK in which case do a search for BABA (British Artist Blacksmith Association)
DO NOT let anyone try to melt it down and recast it. Please don't let anyone with an arc welder or a torch anywhere near it either.
A good Blacksmith will be able to Forge Weld a repair as necessary using the same type of Wrought Iron Material. The final product will be as good as new, cos that's how it was made to start with. If you need more help try the ABANA office, they may be able to help with someone in your area.
Good Luck, JohnB, Woodside Forge, Ontario, Canada.