About Us

Find out more about our history and work

We personalise each work plan, as within this area, the cleaning and sanitation services have a special relevance in our organisation, with the purpose of offering the best framework for the organisers and participants.

Detailed services
  • Maintenance of green spaces.
  • Event coverage.
  • Rubbish collection.
  • Floor treatment in large areas.
  • Cleaning of changing rooms.

There are places where our service capacity is challenged, which is the case of large healthcare centres. In places where the combination of highly specialised personnel, technology innovation and chemical products that guarantee correct environmental management and adequate sanitary barriers are required, we apply different cleaning systems for high, medium and low risk areas.

Detailed services
  • Shock treatments after building works or renovations.
  • Cleaning and disinfection of ventilation systems.
  • Cleaning of operating theatres.
  • Design and implementation of the internal hospital waste management system.
  • Vector Control (disinfection, pest and rodent control).
  • Supply and replacement of essential material for the lavatories and changing rooms.

For high pedestrian traffic areas, we have developed customised methods and quality control systems that are appropriate to the particular needs of each client.

In this area we offer differentiated actions, both in form and frequency in order to ensure the best cleaning aspect.

Detailed services
  • Floor treatments using quality products and machinery technologies.
  • Comprehensive management of food court areas, including assembly, cleaning and waste treatment.
  • Waiters in food courts.
  • Separation and waste management.
  • Toilet Maintenance.
  • Maintenance of loading and unloading areas.
  • Maintenance programs for parking areas and surface treatments including those with hydrocarbon residues.
  • Applied technologies in the administration of work orders and personnel administration.
  • Tasks scheduling and constant communication with the client.
  • Maintenance of escalators.
  • Complete cleaning of cookers and extractor hoods.
  • Cleaning of domes and windows in heights.
  • Vector Control (disinfection, pest and rodent control).

This activity represents an important development within our organisation, which allows us to offer everything from aircraft cleaning to the most complete airport maintenance.

We offer you our solid and committed nation-wide experience in commercial, cargo or private aircraft and in halls, offices, warehouses, hangars, warehouses and workshops.

Detailed services
  • Work order system for task scheduling.
  • Surface treatment.
  • Carpet cleaning.
  • Vector control.
  • Platform cleaning.
  • Aircraft cleaning and disinfection.
  • Collection and treatment of F.O.D
  • Cleaning of toilets.
  • Cleaning of high surfaces.

We have developed extensive experience in the cleaning of industrial estates by establishing specific processes and developing tasks in a safe and sustainable manner, with respect for the standards and procedures requested by our clients.

Detailed services
  • Comprehensive industrial cleaning.
  • Comprehensive cleaning of factories.
  • Cleaning plan: initial deep cleaning.
  • Cleaning of machinery and processing facilities.
  • Projects and design of cleaning services.
  • Industrial waste management.
  • Public cleaning of roads.
  • Cleaning of sewage networks.
  • Technical cleaning.
  • Surfaces.
  • Circuit and distribution pipes.
  • Tanks, containers and reactors.
  • Vacuuming of solids and powdery or bulk materials.
  • Vacuuming of silos, ashes, cements, etc.
  • Sanitation of air conditioning systems.
  • Surface treatment.

Based on the importance of security, we offer a highly experienced and low turnover staff that makes your facilities a place complying with the demands of the competitive financial market and public sector.

Our operators assume the responsibility of creating a clean work environment that promotes and stimulates work activities.

Detailed services
  • Comprehensive cleaning of offices and meeting rooms.
  • Floor treatment.
  • Carpet cleaning.
  • Cleaning of glass, domes and corporate billboards in height.
  • Cleaning of elevators and metallic staircases.
  • After-building cleaning or maintenance of offices.
  • Maintenance of green spaces.
  • Treatment of facades of government and commercial buildings.
  • Anti-graffiti cleaning.
  • Vector control.
  • Cleaning of water tanks with issuing of bacteriological and physico-chemical certificates.
  • Integral waste management.

Rex Argentina S.A.

We are a company founded in 1997 that specializes in cleaning and maintenance. Over the years we have become the market leading company in this sector. We are convinced that the main key to our success is our employees’ commitment to work and their ongoing training.


We provide a service aimed at satisfying the needs of our clients with a focus on continuous improvement as well as human and new technologies development.

Companies from multiple sectors trust Serza because we are specialists in providing cleaning and maintenance services. We seek to achieve the highest standards possible by understanding the particular needs of each client.


Our mission is to provide our customers with a service based on efficiency and trust. We seek to satisfy and exceed expectations based on professional work that is consistent with our values.


We listen to understand needs and adapt our experience to what each company requires. We maintain a constant dialogue because we believe that this is the best way to build strong and lasting relationships.


  • Ethical conduct: integrity, honesty, commitment and responsibility
  • Effective communication: attending to the client’s needs and providing answers.
  • Teamwork: to achieve efficiency in the service.
  • Sustainability: taking care of the environment as a priority.

Integrated Management System

SERZA has an Integrated Management System to comply with ISO standards
9001: 2015 ISO 14001: 2015 OHSAS 18001: 2007 and ISO 39001: 2012. We guarantee quality standards and excellence in the provision of cleaning services.

They trust us