Plumbing; Air-conditioning apparatus washing services; Air-conditioning system installation and repair; Air conditioning apparatus cleaning services; Air conditioning apparatus installation and repair; Air conditioning contractor services; Air conditioning vent sealing services; Electrical contracting; Electrical contractor services; Electrical repairs and installation of boxes, outlets, fixtures, breakers; Electrical repairs, maintenance, and installation of electrical wiring, outlets, light fixtures, and electrical panels; Heating contractor services; Heating equipment installation; Heating equipment installation and repair; Plumbing and gas and water installation; Plumbing contractor services; Plumbing installation advisory services; Plumbing maintenance advisory services; Plumbing repair advisory services; Plumbing services; Advisory services relating to the installation of heating and cooling apparatus; Advisory services relating to the installation of plumbing; Advisory services relating to the maintenance of plumbing; Advisory services relating to the repair of plumbing; Comprehensive preventative maintenance service for electrical systems; Contractor services, namely, review of and remedial recommendations for building plumbing, electrical and mechanical systems for others; Descaling services for water systems like boilers; General contractor services, namely, plumbing, heating and air conditioning, carpentry, drywall, painting, electrical, building and framing contractor services; Installation and maintenance of heating systems; Installation and maintenance of service box, fixtures, wiring, outlets; Installation and repair of air-conditioning apparatus; Installation and repair of air-conditioning systems; Installation and repair of air conditioning apparatus; Installation and repair of electrical appliances; Installation and repair of heaters for baths; Installation and repair of heating equipment; Installation and repair of floor heating apparatus; Installation and repair of heating, ventilating and air-conditioning systems; Installation and repair of heating, ventilating and air conditioning equipment; Installation and replacement service for heating, ventilating and air conditioning systems; Installation and replacement service for water heaters; Installation of air-conditioning apparatus; Installation of air-conditioning apparatus for use in clean rooms; Installation of air-conditioning systems; Installation of electrical and generating machinery; Installation of electrical wiring; Installation of heating and cooling apparatus; Installation of heating apparatus; Installation of heating equipment; Installation of heating systems; Installation of heating, lighting and cooking apparatus; Installation of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; Installation of heating, ventilation and air-conditioning systems; Installation of plumbing; Installation of plumbing systems; Installation of environmentally compliant cooling and heating equipment; Installation of solar heating systems; Installation of service box, fixtures, wiring, outlets; Installation, maintenance and repair of air-conditioning apparatus; Installation, maintenance and repair of air-conditioning systems; Installation, maintenance and repair of electrical lighting apparatus; Installation, maintenance and repair of heating apparatus; Installation, maintenance and repair of heating systems; Installation, maintenance and repair of cooling and air-conditioning systems for temperature-controlled environments; Installation, maintenance and repair of fire, smoke and heat alarms; Installation, maintenance and repair of fire, smoke and heat detectors; Installation, maintenance and repair of service box, fixtures, wiring, outlets; Installation, repair and maintenance of heating equipment; Interference suppression services for electrical apparatus; Maintenance and repair of air-conditioning apparatus; Maintenance and repair of heating apparatus; Maintenance and repair of heating installations; Maintenance and repair of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; Maintenance of plumbing; Maintenance of consumer electrical appliances; Providing information related to the installation, maintenance and repair of residential and commercial properties; Providing information relating to the repair or maintenance of air-conditioning apparatus; Providing information relating to the repair or maintenance of consumer electrical appliances; Providing information relating to the repair or maintenance of gas water heaters; Provision of information relating to the repair or maintenance of air-conditioning apparatus; Provision of information relating to the repair or maintenance of gas water heaters; Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources and rainwater; Repair and maintenance of air-conditioning apparatus; Repair and maintenance of heating apparatus; Repair and maintenance of heating, refrigerating, air-conditioning, drying, ventilating and dust extraction apparatus; Repair of air-conditioning apparatus; Repair of heating apparatus; Repair of consumer electrical appliances; Repair of household appliances and of residential heating, plumbing, air conditioning, and electrical systems; Repair or maintenance of air-conditioning apparatus; Repair or maintenance of gas water heaters