average price of replacing concrete garage floor
1 Professional application of epoxy flooring over patched and level concrete costs about $3-$12 a square foot, or $750-$3,000 for a one-car garage) and $1,200-$6,000 for a two-car garage.2  For details, see How Much Does Epoxy Flooring Cost. To evaluate the problem, an inspection and report by structural engineer can cost $300-$800 and a soil report by a geotechnical engineer can cost $500-$2,500. 2  For more details, see How Much Does Foundation Repair Cost.