Non-Working Reefers: the Insulated Container Bargain

Scan the second-hand container listings and you will keep meeting the same puzzling phrase: non working reefer for sale. It sounds like a defect — and in a sense it is — yet for the right use these are among the smartest buys in the whole container market. A non-operational reefer is an ex-refrigerated container whose cooling unit has been removed or has stopped working. The insulation is still there, the sealed interior is still there, and the price is typically 30-50% below a comparable working machine. This page explains what you are actually getting, what the box can and cannot do, and how UK pricing works.

What a non-operational reefer actually is

Every refrigerated container is two things bolted together: a heavily insulated box, and a refrigeration unit set into one end. When the unit dies or is stripped out for parts, the box that remains is sold as a non-operational (or “non-working”) reefer — in plain terms, an insulated shipping container.

What survives is most of what made the container expensive to build. The walls, roof and floor carry thick insulation, which is why the interior of a reefer is always smaller than that of a dry container of the same nominal size: a 20ft unit measures 6.06 m outside but roughly 5.44 × 2.29 × 2.27 m inside, and a 40ft high cube keeps an internal height of about 2.55 m. The door seals are designed to be airtight, and the lining wipes clean easily. Depending on how the unit was removed, the machinery end is either blanked off with a steel plate or still carries the dead unit in place — worth confirming before you buy, as a properly plated end is tidier and more weathertight.

What it does well

The value of the intact insulation is temperature stability without any running cost. An ordinary steel container follows the weather: baking under summer sun, freezing on winter nights. An insulated shipping container flattens those swings dramatically, which is exactly what many stored goods need.

Typical uses:

• Dry storage of temperature-sensitive goods — paints, adhesives, sealants, electronics, packaged food ingredients.
• Insulated site store on construction sites and remote plots where no power is available.
• Conversion shell for buyers who plan to fit their own cooling or climate equipment and want a sealed, insulated starting point.

There is also a running-cost argument. A working reefer draws roughly 70-170 kWh per day depending on size and set point, and needs a three-phase 380/400 V supply to draw it from. A non-operational reefer needs nothing at all: no supply, no consumption, no electrician.

What it will not do

This is the part listings rarely spell out. A non-operational reefer is not a cold store and cannot be treated as one.

• It does not create cold. Insulation only slows heat transfer; it cannot hold a set temperature.
• Goods loaded cold will warm up over time — across hours and days, the interior drifts towards the outside temperature.
• It is not suitable for chilled or frozen goods that require controlled temperatures. If that is your requirement, you need a working cold storage container, bought or hired.

If your goods can tolerate a slow drift but not daily extremes, the insulated box is ideal. If they need an actual temperature, it is the wrong product.

UK prices: working vs non-operational

All prices here are indicative market ranges quoted ex VAT, with UK VAT at 20%. For context at the top of the market, a new “one-trip” reefer runs £18,995-22,500 ex VAT — which shows just how far down the ladder the non-operational box sits.

One buying note: the usual reassurance on a working reefer is a recent PTI (Pre-Trip Inspection) test, but on a non-operational unit there is no machinery to test. Your inspection shifts entirely to the shell — door seals, floor condition, and above all any punctures or crush damage to the insulated panels, since compromised insulation undermines the whole purchase. The shell checks in our used buying guide apply unchanged.

Can you refit a cooling unit?

Technically, yes. The machinery aperture is standardised, and both new and second-hand units can be sourced. In practice it is rarely worth doing: once you have bought a compatible unit and paid a refrigeration engineer to fit, gas and commission it, the total tends to approach what a working used reefer would have cost in the first place — without the reassurance of a unit tested in its own box. A refit can make sense when a sound unit is already in hand; as a money-saving plan, it usually is not. Buyers who need mechanical cold are almost always better off buying working from the start.

If you actually need cold

Two honest alternatives. To own, a working used reefer at £4,500-7,500 ex VAT is the standard route. For temporary needs, reefer hire starts from around £12 per day on long-term contracts — though be aware that 90-day minimum hire periods are common in the UK; shorter hire does exist, but not with every supplier, so it pays to ask.

And if the insulated box is exactly what you need, tell us the size and condition you are after via a quote request — we pass your request to specialist suppliers, who come back to you directly if they can meet your need.