
Nationcool Airconditioning & Engineering Pte. Ltd.
Strong spots and serious gaps mix here. A long-term customer praised their ability to fix old units and diagnose complex wiring faults, while another reported Ah Wei quickly found and corrected a cross-wiring installation error. Yet installation defects dominate complaints: one household endured repeated water flooding for months after a new install with no fix; another paid over $500 for outdoor cleaning and refrigerant top-up without proper pressure measurement, leaving units still inadequately cold; a third saw an undiagnosed gas leak cost over $100 with no real resolution.

