37 building construction services, namely, installing architectural metalwork; installation of architectural metalwork, cladding, louvers, railings and grilles on buildings; construction services, namely, installing architectural metalwork, cladding, louvers, railings and grilles on buildings; installation of doors and windows; window installation; installation, maintenance and repair of automatic window opening and closing apparatus; installation, maintenance, and repair of mechanical apparatus for opening and closing windows; rental of construction and building equipment; rental of construction machines; construction consultancy; construction advice; construction of buildings; construction of residential buildings