installation, maintenance and repair of household, consumer, and commercial products and systems, namely, electronics, household and consumer appliances, HVAC systems, household and commercial electrical systems and plumbing, central vacuums, hot water heaters, humidifiers, dehumidifiers, water softeners, exercise and recreation equipment, lawn and garden equipment, pool and spa equipment, home furnishings, luggage, CDs, computer hardware, jewelry, watches, clocks, musical equipment, photographic equipment, marine equipment, motorized vehicles, and residential home and commercial building security systems; providing self-help information to consumers via an on-line global interactive computer network regarding the repair, installation, and/or maintenance of the aforementioned goods; residential and commercial construction services, namely, planning and laying out and custom construction of residential and commercial buildings, building repair and custom renovation; residential and commercial contracting services, namely, contracting electrical, plumbing, heating, and construction work