What is a reefer container?
A reefer is an ex-shipping refrigerated container repurposed for stationary cold storage. It arrives on a truck, gets placed on a level surface, and plugs into a power supply. The refrigeration unit is integrated — there is no separate compressor room or ductwork to install.
Most reefer containers in South Africa are Carrier or Daikin units originally built for international shipping. They are engineered to maintain temperature across oceans, which means they handle inland conditions comfortably. AquaCat refurbishes and services these units specifically for on-site cold storage use.
What is a built cold room?
A built cold room is a permanent structure constructed on your premises. It involves insulated panel installation, a separate compressor and evaporator system, flooring, drainage, electrical work, and usually building approval from the local authority.
Built cold rooms make sense for large, permanent facilities where layout customisation matters — think an L-shaped room that wraps around existing infrastructure, or a multi-zone facility with different temperature chambers under one roof. The trade-off is capital cost, construction time, and the fact that it stays with the building.
Side-by-side comparison
| Factor | Reefer Container | Built Cold Room |
|---|---|---|
| Upfront cost | Low (rental) or moderate (purchase) | Significant capital outlay |
| Monthly cost | Predictable, size-dependent — request a quote | Electricity + maintenance contracts |
| Installation time | 24–72 hours | 6–12 weeks |
| Mobility | Fully relocatable | Permanent fixture |
| Maintenance | Included in rental (SLV2/SLV3) | Owner’s responsibility |
| Compliance | R638 / SAHPRA capable | R638 / SAHPRA capable |
| Scalability | Add or remove units as needed | Requires construction to expand |
When to choose a reefer container
A reefer makes sense when speed, flexibility, or budget constraints are the deciding factors. Specific scenarios include:
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You need cold storage this week — a reefer arrives in 24–72 hours. No building permits, no contractor delays.
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You are renting your premises — a cold room stays with the landlord when you leave. A reefer comes with you.
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Your needs are seasonal — scale up for peak months, return the extra unit in the quiet season.
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You cannot afford R200k+ upfront — rental keeps cash in the business where it is needed most.
When to choose a built cold room
A built cold room is the right call in specific circumstances:
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You own the property and plan to stay for 10+ years — the capital investment amortises over time.
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You need a non-standard layout — multiple temperature zones, custom shapes, or integration into an existing building.
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Your operation is very large-scale and permanent — a purpose-built facility for high throughput that will not change for years.
Why most South African businesses start with a reefer
The reality is that most businesses — from start-up butcheries to established restaurants — choose a reefer container first. The reasons are straightforward:
- No capital outlay on a rental model
- Operational in days, not months
- Maintenance is someone else’s problem
- If the business grows, add another unit. If it shrinks, return one.
- If you move premises, the cold storage moves with you
Many businesses that planned to “start with a reefer and build later” never build — because the reefer keeps working and the numbers keep making sense.