Typical Peruvian schools were built with a now out-of-date seismic code that does not guarantee the student population safety. This type of buildings presents an undesirable structural failure known as short column, i.e. slender columns partially restrained by infill walls. The objective of this paper is to evaluate a low cost retrofitting techniques proposed by a previous study in accordance to the Incremental Retrofitting Methodology proposed by FEMA 395. Incremental dynamic analysis, IDA is used to analyze original and retrofitted structure in terms of structural response and damage state for different intensity levels. The results of these analyses reveal the effectiveness of the interventions in terms of economic values.