Concrete Slabs and Stairs. Econocom spesialize in the Slabs and Starcases within the Building and Construction industry servicing the greater Gauteng Region with everything construction related. just email us your drawings and we will supply you with a Free quotation within 24hours.Our Products and ServicesEngeneerConcrete slabsStaircasesBuilding and ConstructionWe have the manpower and experience to start a project from the beginning to the end. Property Developments by Econocom- Menlo Farm Villages- Amberfield Village- Villa Belucci- Villa Frontino