Blue Line Services Blue Line Services in Ludhiana is one of the leading repair and maintenance service providers for electrical appliances like refrigerators, washing machines, air conditioners, microwaves, water dispensers, water purifiers (R.O.) systems, and water coolers. We make use of advanced technologies to repair your electrical appliances. Since 2001, we are in this market and repairing home appliances, appliances used in service sectors including offices, hospitals, educational institutions, etc.