Aircon installation covers putting in a new split-unit or multi-split system, replacing an old unit, or adding capacity to a room that never had one. The job includes mounting the indoor and outdoor units, running refrigerant piping and drainage, wiring into your electrical supply, vacuum-testing the line for leaks, and charging the system with refrigerant before handover. In Puchong's mix of terrace houses, apartments, and shoplots, installers also deal with wall thickness, riser access in high-rises, and bracket placement on external ledges, all of which affect price and how long the job takes.
We list 127 aircon installation businesses serving the Puchong area, ranging from one-person outfits to established teams with multiple crews. Quality varies a lot in this trade because so much of the work (pipe insulation, vacuum pressure testing, brazing joints) is hidden once the unit is boxed up, so a bad job can look fine for months before it leaks or underperforms.
What to check before you hire
- Licensing and gas handling: the installer should be competent to handle refrigerant safely and pull a proper vacuum, not just bolt the unit to the wall.
- Written quotes: get the brand, model, BTU rating, pipe length, and what's included (brackets, trunking, disposal of the old unit) in writing before work starts.
- Warranty terms: installation warranty is separate from the manufacturer's compressor warranty, ask how long each runs and what voids them.
- Site-specific experience: a contractor who's done similar unit types (walk-up apartment vs landed house) will move faster and avoid rework.
Our scoring pulls together review volume, rating consistency, and how responsive a business is, so you can compare contractors on more than star rating alone. For a ranked shortlist of the top performers in this category, see our best air conditioning contractors in Puchong guide. Full detail on how we calculate scores is on the methodology page.