Heating contractor services; installation, repair and maintenance of heating equipment; air conditioning contractor services; installation, maintenance, and repair of air conditioning apparatus; electrical contractor services; installation, maintenance, and repair of electrical systems; plumbing contractor services; plumbing installation, maintenance and repair; general contractor services, namely, heating, air conditioning, ventilation, plumbing, electrical systems for others; installation, maintenance and repair of attic insulation, radiant heat barriers, radiant heat resistant films, and attic ventilation systems; installation and maintenance of solar thermal panels and systems and alternative energy products; installation, maintenance and repair of home automation systems, namely, door locks, cameras, smoke alarms, fire alarms, wireless local area network thermostats, image sensors, access controls, alarm monitors, and water shutoff controls; installation and maintenance of windows and doors