HATJR MCS CORP. is already established engineering design construction maintenance and consultancy firm and has expanded its services and operations in LUZON, VISAYAS, and MINDANAO areas. Its services now includes: Engineering Design Construction Maintenance and Consultancy in Water treatment and Wastewater Works - Water Supply and Distribution Systems, Building Sanitary Systems-Plumbing, Environmental-Sewerage, and Civil Works Engineering, Fire Protection Works – Fire and Life Safety, Automatic Fire Sprinkler Systems, Fire Suppression Systems, and Special Extinguishing Systems, Mechanical Works - Heating, Ventilating and Air-conditioning Systems, Electrical Works and Auxiliary Works. The company aims to be the leading engineering design construction maintenance and consultancy firm recognized for quality, efficient and cost-effective designs, and on-time delivery on commitments.