STRABAG modernises wastewater infrastructure in Serbia for EUR 45 million

29 Sep 2026
With the official project launch, implementation of one of the Serbia’s most significant water infrastructure projects has begun. 
Multi-tiered water cascade at a treatment facility, with foaming water flowing over steps beneath a metal railing structure under a clear blue sky. © STRABAG
© STRABAG

As part of the project, wastewater collection and treatment systems in Čačak will be expanded and upgraded to comply with the requirements of the EU Urban Wastewater Treatment Directive. STRABAG will be responsible for key design, construction, and supply services.

This contract further strengthens STRABAG’s position in the field of water and environmental infrastructure in Southeast Europe. Following the award of the Krnjača Wastewater Treatment Plant project in Belgrade last year, STRABAG has now secured another major water infrastructure project in Serbia. Together, these landmark projects demonstrate the Group’s strong capabilities in delivering complex environmental infrastructure and support the long-term modernisation of municipal public services across the country.

The project is co-financed by the European Union and the Republic of Serbia. Its objective is to progressively align the existing wastewater infrastructure with European environmental standards and sustainably improve water quality throughout the region.

Key Project Components

  • This project marks an important milestone in the further development of water and environmental infrastructure in Serbia. With our expertise across the entire value chain, we can make a significant contribution to sustainably improving quality of life and implementing European environmental standards in the region.

    Christian Sadleder
    Technical Division Manager & Member of the board STRABAG AG – Energy & Infrastructure
  • With this project, we are creating the foundation for a modern and efficient wastewater treatment system in Čačak. At the same time, we can contribute our extensive experience in complex water infrastructure projects and make a sustainable contribution to improving environmental standards across the region.

    Reinhard Bodner
    Technical Subdivision Manager – STRABAG Water

Upon completion, the new infrastructure will make a substantial contribution to safe and sustainable wastewater treatment in Čačak. At the same time, the project will improve water protection and establish the foundation for long-term urban and regional development.

Implementation will commence in September 2026 and is scheduled for completion within three years. Through this project, STRABAG is helping to future-proof Serbia’s municipal infrastructure and improve quality of life for local communities over the long term.

Factbox

STRABAG company STRABAG AG
Contract volume EUR 45.1 million
Segment International + Special divisions
Construction period 09/2026 – 09/2029
Client Ministry of Finance, Department for Contracting and Financing of EU Funded Programmes (CFCU)
Open field in Čačak, Serbia, designated as the future location of a wastewater treatment plant. The image shows dry grassland with scattered vegetation and a line of trees in the background under a clear sky. © Marko Stojšin / STRABAG

About STRABAG AG

STRABAG AG is Austria’s leading construction company and part of STRABAG SE, acting as the parent company of the Austrian STRABAG subsidiaries. As a technology group for construction services, our activities span all areas of the construction industry and cover the entire construction value chain. We create added value for our clients by taking an end-to-end view of construction over the entire life cycle – from planning and design to construction, operation and facility management to redevelopment or demolition. In all of our work, we accept responsibility for people and the environment: We are shaping the the future of construction. As Austria’s largest construction company, we generate an annual output of around € 2.9 billion with approximately 12,835 employees.

We pursue a clear sustainability strategy designed to make planning, construction and operation fit for the future. More information is available strabag.at