37 [ Installation and repair of water distribution, water treatment and irrigation device systems; disinfecting; construction of permanent buildings, bridges and roads, supervision of construction works, of demolition of buildings; building sealing services; ] installation and repair of heating equipment, of air conditioning apparatus, of electrical appliances, of furnaces, of freezing equipment; [ building insulating services; building construction and renovating; installation, maintenance and repair of air conditioning apparatus, of elevators; ] installation, maintenance and repair of boilers and electric systems; [ alarms and fire extinguishing systems and of burglar alarms; installation, maintenance and repair of office machine and equipment, and computers; vermin exterminating other than in agriculture; rat exterminating, disinfection, janitorial services in the nature of cleaning and disinfecting of the interior and exterior of buildings; furniture maintenance, window cleaning; laundry services, namely, linen laundering, linen ironing; plumbing and exterior and interior painting; installation and repair of telephone and telecommunication apparatus; ] operating, repair and maintenance of all heating, steam generating, electricity, air conditioning and refrigerating installations for others; [ collecting industrial waste and trash ]