Real estate building construction; cleaning of real estate property; renovation of buildings; advisory services relating to rebuilding of real estate buildings; servicing, maintenance, and repair of building technology installations and devices, namely, air conditioning systems, heating systems, sanitary installations, electrical devices, HVAC systems, smoke and heat extraction systems, burglar alarm systems, elevator systems, door installations, and gate installations; building cleaning, bui...

Real estate building construction; cleaning of real estate property; renovation of buildings; advisory services relating to rebuilding of real estate buildings; servicing, maintenance, and repair of building technology installations and devices, namely, air conditioning systems, heating systems, sanitary installations, electrical devices, HVAC systems, smoke and heat extraction systems, burglar alarm systems, elevator systems, door installations, and gate installations; building cleaning, bui...