Material and size come first. A standard latex balloon is inexpensive, a chrome or confetti one costs more to produce, a licensed foil character carries a licence fee, and a giant 36-inch latex or a large supershape sits well above both. Size compounds this, because a larger balloon costs more to buy and consumes far more gas.
Helium is the factor people underestimate. It is a finite imported resource, and consumption scales with volume rather than with the number of balloons, so one giant balloon can use as much gas as a whole cluster of small ones. This is also why air-filled garlands are noticeably cheaper than helium sets of the same visual size.
The rest is what we do to the balloon. HiFloat treatment, custom printing, vinyl lettering and gift wrapping all add cost, and above all so does labour. An organic garland or an arch is hours of hand assembly, and an installation adds travel, setup and often dismantling on site. Seasonal peaks around National Day, Valentine and graduation season also tighten availability and lead times.
- Material and finish: plain latex, chrome, confetti, foil, licensed designs
- Size, since larger balloons cost more and consume far more helium
- Air-filled construction is cheaper than the same look in helium
- Extras: HiFloat, printing, vinyl lettering, packaging and accessories
- Assembly and installation labour, which dominates the price of large decor