cool rays (cr) is general maintenance and service firm. which provide 14 years full range of high quality maintenance service including installation, refrigeration, air conditioning, heating, ventilation, plumbing and electrical services. (sales /purchase on demand of customer) in all pakistan and all types of business organization and institution, cool rays provide equal level maintenance services. in cool rays, thoroughness creativity, speed, and correct to produce a good response with their client. about the maintenance services. cool rays develop long term relationship; cool rays mostly conduct client feedback exercises to ensure that the services are provided according the client requirements. the key of service maintenance area include, government and non government, private organization, the representative client of cool rays include pakistani business group banks, textile mills, garments factory, insurance company, hotel, mobile company franchise, bakery hospital. college, school and individual clients. cool rays provide high standard quality to their customer for facilitate to their customer. and take the information / feedback their customer about the maintenance service.