It depends on the extent of the damage and the materials and labor needed to repair it. A basic carpentry repair might cost around $100-300, while a more extensive structural repair could cost upwards of $10,000.

I need help repairing a barn. How much does it cost to repair a barn? Well, that depends on the extent of the damage and the materials and labour involved in repairing it. A professional contractor would be able to give you a more accurate estimate.