Construction activities and supervision of buildings, swimming pools and earthworks. Insulation and renovation of the house, replacement of elevators, reconstruction and roof insulation, replacement of NE and DHW distributions, reconstruction of balconies and repairs of railings, replacement of windows and entrance doors, interior and exterior plaster, paintings, coatings, complete replacement of paving, replacement of electrical installations, gas boiler rooms, heat pumps, consultancy in drawing various sources of commercial financing, professional assistance in handling current subsidies, solar DHW heating technology, photovoltaic power plants.