Ducted vs Cassette vs Wall-Mounted: Picking the Right AC Type

Commercial clients often start by asking which AC system is "best," but the honest answer is that it depends entirely on the space.

Wall-mounted split units are the simplest and cheapest to install, and they work well for small offices and single rooms with a wall available for the outdoor unit's line set. Their downside is limited air throw and a visible indoor unit that not every space wants.

Cassette units mount flush into a false ceiling and distribute air in four directions, making them a strong choice for open-plan offices, retail floors, or restaurants where a clean ceiling look matters and coverage needs to be even across a square-ish room.

Ducted systems hide everything above the ceiling and deliver air through diffusers, giving architects full control over aesthetics and letting a single unit condition multiple rooms or zones. They cost more to install and need proper duct design, but for larger commercial fit-outs they're usually the most flexible long-term option.

Our recommendation is always the same: tell us your ceiling height, room shape, and how the space will actually be used, and we'll size and specify the format that fits — not just the one with the lowest sticker price.