Most visitors praise the owner's honesty, reasonable pricing, and quick repairs on car air conditioners, with fixes often completed in hours. Concerns surface occasionally: unclear upfront diagnostics, past complaints about expensive parts charged, and one account of deliberate refrigerant discharge.
Based on limited recent reviews, so treat this as low-confidence.
Five-star reviews praise fast, punctual service and fair basic pricing. Negative reviews centre on no-shows, unexpected charges for diagnostics that led elsewhere for repair, messy installation work especially on upper-storey jobs with hidden copper-line costs, and bathroom mess left after cleaning. Technicians Umer and Osman were named for quality work in separate reviews.
Zen Engineering installs and services air conditioners across Penang with strong follow-through: staff answer queries patiently, technicians work fast, and pricing stays fair. The founder brings 30 years of industry experience, and most recent jobs run without hiccup.
Strong track record across aircon work and electrical services. Reviewers consistently praise speed, tidiness, and willingness to finish jobs thoroughly; Hafiz and Mohamad are named favourably for their punctuality and approachability.
Last updated 2026-08-02