- How much does it cost to fix outside of house?repair is $100 to $1,700, with most buyers spending about $500 to repair 100 sq. ft. of wood siding. On the low end, repairing a crack in vinyl siding costs $50 in materials and labor….Siding Repair Cost.House Siding Repair CostNational average cost$500Average range$100-$1,700Minimum cost$50Maximum cost$5,000Jan 25, 2021