Building of the Inspectorate in Poznań:

1. Insulation of the building envelope (external walls, external floors and ventilated flat roof), insulation of partitions separating heated rooms from those unheated.
2. Replacement of garage gates and external doors.
3. Replacement of radiators with new ones of the panel type with thermostatic valves and installation of riser valves.
4. Installation of a solar system supporting production of hot tap water.
5. Installation of supply and exhaust ventilation with heat recuperation covering the largest possible number of rooms.
6. Replacement of the existing lighting with energy-efficient LED sources and the lighting control in the building.

Building of the Inspectorate Regional Office in Kalisz

1. Insulation of the building envelope and partitions (external walls, ventilated and non-ventilated flat roof, partition walls separating heated rooms from those unheated).
2. Replacement of window frames.
3. Replacement of door frames.
4. Modernization of internal systems (installation of riser valves, elimination of electric heaters, hot tap water tank, hydraulic balancing).
5. Modernization of the ventilation system (installation of window ventilators).
6. Change of the energy source from fuel oil to natural gas (replacement of the burner with one adapted to fuel gas, installation of the connection).
7. Installation of a solar system supporting production of hot tap water.