It is widely known that it is possible to harvest more and high quality products from greenhouses, which are agricultural production structures. Heating costs occupy an important position in overall production costs since greenhouses are heated in order to harvest product during winter. Various theoretical heat saving methods which are applied in order to minimize heating costs and maximize efficiency in greenhouses do not reach intended levels due to insufficient sealing and insulation. In this respect, this study focuses on the feasibility of thermal imaging in order to identify heat losses due to the structural problems in greenhouses. Images obtained from thermal cameras in greenhouses were analyzed via analysis software and problems that may lead to heat losses were identified. The findings demonstrate that thermal imaging technique can identify structural problems which lead to heat losses and that these problems stem from holes on the bottom and sides of the doors, holes on the ventilation window, holes at the junction point of covering-front wall and covering-side wall, and insufficiently insulated subbasement concrete.