The first project that included performing plumbing work was contracted in 2004. After the successful completion of the implementation of that project, praise be to God, more confident steps began to be taken to implement more contracts that include electrical, plumbing, and air conditioning work. In the beginning, reliance was placed on subcontractors, and in 2007 AD, preparing the required cadres for the department, including engineers and technicians, and operations that include plumbing work showed clear results in their impact on profit and reducing fixed costs.