RS ALVARADO CONTRACTOR CORPORATION is a duly registered corporation with SEC REG. NO. CS201803348. It was formally launched this May 28, 2019 after ALVARADO ENGINEERING SERVICES reach its Five (5) years.

Its previous name was ALRHEA AIRCON MAINTENANCE & SERVICES which was established since 2007. The company decided to grow not only in the field of aircon maintenance but also into other Engineering Services and renewed in 2013 as ALVARADO ENGINEERING SERVICES. It is basically engaged in servicing and maintenance of buildings, particularly in the field of air-conditioning, refrigeration, descaling, swabbing and installation of water treatment controller and chemical pot feeder, preventive maintenance, flushing and passivation, ducting works, electrical works, mechanical works, sprinkler works, installation of  PV solar panels, combiner box and inverters and installation of LPG and Fire Suppression.