Proficiency in external and internal plumbing should be taken considered since it is the basis on which the cleanliness of the house or place is based. From this base, the work of Sabbagh for Maintenance and Construction begins, so that it is keen to take considered – the sizes and diameters – with the correct connections and correct provisions for pipes and considering the necessary tendencies in external networks. Raising the technical and design level Building blueprints for plumbing work.

Plumbing is established with the Tie Beams system so that the plumbing is hidden inside the walls. The necessary installations for plumbing and electricity must be made before pouring the slab concrete, where all the drainpipes for each toilet or kitchen are placed inside the Tie Beams. Also, electric drummer pipes are established for each floor. The location of the drums for each floor must be chosen from now, unlike if the plumbing is external, it will be established later.