The construction and renovation works of the buildings located at 137 Wołoska street in Warsaw, including the replacement of windows, have been supported by the actions of EPPA - the European Association of PVC Window System Suppliers. Raising awareness of the importance of creating a closed-loop for window disposal has resulted in collaboration with the general contractor and the recycling company Dekos.

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The entire initiative, which involves replacing the window joinery with new energy-efficient joinery, had to proceed smoothly and without disruptions. For this reason, specialized containers were placed on the construction site during the dismantling process, into which the installers deposited the dismantled windows, and Dekos flexibly exchanged the filled containers for empty ones. Thanks to these efforts, nearly 3,000 windows will be recovered by the end of the year. Instead of ending up in landfills, they will be recycled and used in the production of new windows.

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The grant for the implementation of this thermomodernization project will be provided by the National Fund for Environmental Protection and Water Management from the funds of Priority Axis I of the Operational Program Infrastructure and Environment 2014-2020 - within the scope of Action 1.3 Supporting Energy Efficiency in Buildings, which is being implemented by the National Fund for Environmental Protection and Water Management in agreement with the Ministry. The total cost of the investment titled "Improving Energy Efficiency in the Buildings of the MSWiA Central Clinical Hospital in Warsaw" will amount to 52.2 million PLN. In addition to the grant from the POIiŚ, the investment will also be supported by the state budget with an amount of approximately 3.7 million PLN.