Sourcing prefab walk-in cold rooms from China
The relevant prefabricated building lines carry 2% UK duty from China, with no listed trade remedies. Confirm that the shipment is a building under heading 9406 and check the refrigerant and insulation against Great Britain's F-gas product bans. Cambridge China Bridge sources prefabricated walk-in cold-room buildings.
Building classification and UK duty
Heading 9406 covers prefabricated buildings. This guide concerns walk-in cold-room buildings, rather than assuming every insulated enclosure or refrigeration package belongs here. The table gives candidate building lines by construction material and modular form. Confirm the classification of the complete shipment through finding your commodity code. For the wider heading, see prefabricated site office cabins.
Read from the UK Trade Tariff on 4 October 2026, all the selected lines carry 2% duty for goods from China. The supplied records list no anti-dumping or countervailing duty, suspension or steel measure. They attach fluorinated greenhouse gas import controls. Imported F-gas equipment must be labelled, including correctly labelled empty equipment. Ask your customs broker to confirm applicable quota, declaration and customs-document requirements for the actual refrigerant charge.
The steel modular, other steel and other-material lines also attach a torture-and-repression import prohibition; confirm its applicability with your customs broker. The wooden line attaches a Quarantine Release Certificate control; confirm its requirements for the Chinese goods with your broker. The records also contain a cultural-goods export licence and torture-and-repression export restrictions. Have the broker distinguish these export measures from import requirements.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Steel modular building units configured as walk-in cold rooms | 9406 20 00 00 | 2% | None |
| Other iron or steel prefabricated cold-room buildings | 9406 90 38 00 | 2% | None |
| Prefabricated cold-room buildings of other materials | 9406 90 90 00 | 2% | None |
| Wooden prefabricated buildings configured as cold rooms | 9406 10 00 00 | 2% | None |
Specify the envelope and refrigeration together
Agree internal clear dimensions, the stored product, operating temperature, incoming product temperature, door traffic and installation environment. Specify panel core and thickness, facing material, joint seals, floor loading, door opening, internal emergency release and drainage. State whether the factory supplies an insulated building shell, a refrigeration package or an assembled combination, and identify who supplies foundations, wiring and commissioning.
Obtain the refrigerant identity and charge, insulation blowing-agent details, equipment model list, wiring drawings and installation instructions before approval. Products or equipment containing banned F gases must not be placed on the market in Great Britain. Check both the cooling package and panel foam against the product bans. Arrange refrigeration servicing through a contractor with the correct F-gas certification when it handles those gases.
Worked duty example
Illustrative example, not a quote: Illustrative order of prefabricated walk-in cold-room building kits under 9406 90 38 00, invoiced at £40,000 free on board, with £8,000 of freight and insurance to the UK. The customs value is £48,000. Duty at 2% is £960. Import VAT at 20% is charged on the customs value plus duty, £48,960, so it is £9,792. Import taxes total £10,752; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £960 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Panels: measure against the approved drawings, inspect cut edges and facing adhesion, and trial-fit joints, corners and roof connections. Check the delivered core and facing match the approved sample.
Doors and floor: check gasket contact, hinges, threshold alignment and internal emergency release. Inspect floor joints and confirm the supplied floor construction matches the agreed loading and installation method.
Cooling package: match compressor, evaporator and controller models to the approved schedule. Check refrigerant labels, pipe protection, defrost arrangements and condensate routing; agree an operating test with the installer.
Packing and arrival: reconcile panel identifiers, fixings and drawings, photograph crushed corners or damaged pipes, and record shortages before assembly. Use quality inspection to agree checks before shipment.
What goes wrong
Panel joints that fail to close, damaged vapour seals and poorly seated door gaskets let moisture enter and cause condensation or icing. Missing corner pieces or fixings delay assembly. A cooling package selected without the product load, door traffic and ambient conditions may fail to maintain the agreed temperature.
A shell quote can leave out the floor, refrigeration, wiring or commissioning. Put the supply boundaries in writing and have the installer review drawings before production. Do not accept a refrigerant description or panel-foam description that cannot be matched to the delivered materials.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification.
Frequently asked questions
What is UK import duty on a prefabricated cold-room building from China?
The selected heading 9406 building lines carry 2% duty from China, with no listed anti-dumping or countervailing duty. Confirm the code for the actual construction and shipment.
Does every walk-in cold room fall under heading 9406?
Do not assume it does. Give your customs broker the construction drawings, materials and packing list, showing whether the shipment is a building, an enclosure or separate refrigeration equipment.
Can I import a cold room with refrigeration already fitted?
Check the refrigerant, charge and panel foam before ordering. Great Britain prohibits placing products containing banned F gases on the market. Ask your broker to confirm import paperwork for the fitted equipment.
What should I check when the cold-room kit arrives?
Check panel identifiers and damage, joint fit, door seals and internal release, floor construction, cooling equipment models, refrigerant labels and the completeness of fixings and drawings.