Abstract—The metalworking sector has had remarkable growth in recent years, which has a great influence on the country's economy. However, there is no adequate level of service in Peru, since it currently has 67.62%, when the standard is 85%, this originates due to several factors, the delay in the dispatch threads, non-compliance with orders, disorder in the warehouse, among others. According to the above, it is necessary to plan an adequate service management. For this reason, a service management model based on Lean Manufacturing tools (5S and Standardized Work) and SLP was developed to improve the level of service in the aforementioned sector. The model was validated through the Arena software where an increase in the level of service from 75% to 91% was obtained, a reduction in effort and distances traveled thanks to the use of SLP, and a significant increase in the audit rating through 5S. The results obtained show the effectiveness of the proposed model to improve the level of service in the metalworking sector.