The objective of this article is to provide some considerations about labor contracting of construction employees in Colombia. As methodology, the authors revised the current regulatory framework for the labor contract system in Colombia (particularly, for the construction employees). Information from other sources such as the periodic reports from specialized entities in the subject (like Camacol, the Ministry of Labor and the ICM - an association of the Colombian wood and construction sector workers) was triangulated. It is concluded that, in the current contracting system for construction employees, there are numerous irregularities in the processes of labor insertion; these anomalies in the sector increase informality and subcontracting. Employees get negatively affected due to the fact that their labor rights are frequently violated. Construction companies are also affected since those irregularities increase their expenses, both by the outsourcing of personnel and the payment of possible legal penalties caused by faults in recruitment processes.