Commercial and industrial aircon work covers a different scale of job than a home split unit. Think VRV/VRF systems running through a factory or office block, chiller plants, packaged rooftop units for warehouses and retail units, ducted systems for shop lots, and cold room or process cooling tied to production lines. In Rawang's industrial parks around Bandar Baru Rawang, Taman Sri Rawang, and the factory clusters off the Guthrie Corridor, this also means contractors who can handle three-phase power, higher static pressure ductwork, and equipment that can't be down for more than a few hours without hitting production or tenants. We list 12 contractors in Rawang who take on this category of work, from installation and retrofit to scheduled maintenance and breakdown callouts.
What the work actually involves
A commercial or industrial aircon job usually falls into one of these buckets:
- New installation or retrofit: sizing and fitting VRV/VRF multi-split systems, chillers, or packaged units for a new factory, office, or renovated shop lot.
- Scheduled maintenance contracts: quarterly or monthly servicing of chemical wash, coil cleaning, refrigerant checks, and filter changes to keep warranty terms valid and stop breakdowns.
- Breakdown and repair: compressor faults, refrigerant leaks, control board issues, usually under a callout arrangement with a response-time commitment.
- Ducting and ventilation work: fabrication and installation of ductwork, exhaust systems, and air balancing for larger floor plates.
What to check before you sign a contract
Because the equipment and downtime costs are bigger than residential work, a few things matter more here:
- Experience with your equipment brand and capacity: a contractor comfortable with 5-ton split units may not have handled a 50-ton chiller or a VRF system with dozens of indoor units.
- Licensing and manpower: ask whether the team includes certified electricians for three-phase wiring and enough technicians to finish large jobs without dragging on for weeks.
- Maintenance contract terms: get clarity on visit frequency, response time for breakdowns, what's included (parts, labour, chemical wash) versus billed separately, and whether after-hours callouts cost extra.
- References from similar-scale sites: a factory or warehouse client reference tells you more than a residential job list.
- Written quotations: for commercial jobs, get an itemised quote covering equipment, ducting, wiring, and any civil works, not just a lump sum.
How we score contractors
Our ranking weighs review volume and rating trends, how consistently a business responds to enquiries, how long it has operated in the Rawang area, and signals of commercial-scale capability where available. It's not a paid placement list. The full breakdown of factors and weightings is on our methodology page. For the ranked list of all 12 contractors with scores, see our best air conditioning contractors in Rawang guide.