Heating equipment installation, maintenance and repair;
air conditioning apparatus installation, maintenance and repair;
generator installation, maintenance and repair;
electrical apparatus installation, maintenance and repair;
maintenance and repair of building contents;
maintenance and repair of construction apparatus;
maintenance and repair of construction machines;
repair, maintenance and installation consultancy services;
advisory services for the installation, maintenance and repair of electrical apparatus, heating equipment, air conditioning apparatus, generators and insulations thereof;
welding (construction, repair and installation services);
electrical wiring services;
electricity connecting services;
electricity disconnecting services;
including by electronic means and via a global computer network, about all of the aforesaid services