Sourcing vacuum insulating glass from China
Vacuum insulating glass units from China carry 0% UK duty across the relevant heading 7008 lines, with no listed trade remedies. CE marking under construction-product rules requires a covering standard or technical assessment. Check evidence for the exact vacuum design. Cambridge China Bridge sources vacuum insulating glass units.
Zero duty on vacuum insulating glass units
Read from the UK Trade Tariff on 2 October 2026, heading 7008 covers multiple-walled insulating units of glass. Its description expressly includes airtight units with glass panels separated by a vacuum. The table separates tinted and coated variants sharing a commodity code. For the wider product family, see our double-glazed units guide.
The supplied tariff records 0% duty for goods from China on every listed line, with no anti-dumping or countervailing duty, suspensions or attached import controls. Import VAT is separate from duty. The import duty and VAT guide explains the calculation.
Confirm the commodity code using the pane construction, coatings and complete assembly description. Do not select the vacuum line solely because the supplier calls the product vacuum glass: tinted or coated units have a separate description, and complete framed windows need separate classification.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Body-tinted vacuum insulating glass units | 7008 00 20 00 | 0% | None |
| Other airtight units with two glass panels separated by a vacuum | 7008 00 81 00 | 0% | None |
| Other multiple-walled units incorporating vacuum glazing, subject to classification | 7008 00 89 00 | 0% | None |
Specify the vacuum design and performance evidence
Send a cutting list and drawings showing dimensions, overall thickness, pane make-up, coating position, edge-seal width, support-pillar layout and any evacuation-port position. Agree the visible appearance of pillars and seals on an approved sample. Ask for handling, storage and installation instructions, including restrictions on edge processing.
Specify the centre-pane thermal performance and ask separately for evidence covering the finished window assembly. Obtain durability and vacuum-retention evidence for the seal design actually ordered. Match reports to the factory, product construction and supplied sizes rather than accepting a brochure value.
For construction use in Great Britain, legitimately CE-marked products can continue to be supplied without additional UK marking. Construction-product CE marking needs coverage by a harmonised standard or a European Technical Assessment; covered manufacturers must draw up a declaration of performance. Ask the supplier to identify the route covering this vacuum design and provide the declaration and supporting reports.
Worked duty example
Illustrative example, not a quote: Illustrative crate of made-to-measure uncoated vacuum insulating glass units under 7008 00 81 00, invoiced at £6,000 free on board, with £2,400 of freight and insurance to the UK. The customs value is £8,400. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £8,400, so it is £1,680. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Dimensions and fit: measure sampled units against the cutting list, including thickness and the space needed for the edge seal and any evacuation port.
Vacuum and seals: inspect for edge damage, seal discontinuities and damaged ports. Review batch vacuum-retention records and agree a performance test for sampled units; appearance alone cannot establish an intact vacuum.
Glass and appearance: check pane make-up, coating orientation, scratches, chips and support-pillar appearance against the approved sample.
Packing and arrival: check upright restraint, separators and edge protection before loading. On arrival, photograph crate damage and inspect affected units before moving them into usable stock. Arrange checks through our quality inspection guide.
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What goes wrong
An edge-seal leak can reduce thermal performance even when the unit still looks clear. Chipped edges, damaged evacuation ports and poorly restrained packing can leave apparently acceptable glass unsuitable for installation. Wrong sizes or unexpected seal and pillar visibility can also prevent acceptance.
A report for ordinary gas-filled insulating glass does not demonstrate the performance of the vacuum design ordered. Agree the exact construction, supporting reports, acceptance checks and replacement process before production. Keep the product identification on each crate traceable to the cutting list.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For own-brand ranges, see sourcing for brands.
Frequently asked questions
What is the UK import duty on vacuum insulating glass from China?
The supplied tariff, read on 2 October 2026, records 0% duty across heading 7008, with no listed anti-dumping or countervailing duty. Import VAT is separate.
Does vacuum insulating glass need CE marking?
For the construction-product CE route, the exact design must be covered by a harmonised standard or a European Technical Assessment. Ask for the declaration of performance and supporting evidence.
Can vacuum insulating glass be cut after delivery?
Order to the finished cutting list. Obtain written processing instructions from the manufacturer before any cutting or edge work that could disturb the vacuum seal.
How do I check whether a vacuum glass unit has leaked?
Check seals and ports for damage, review batch records and use an agreed performance test on samples. Clear-looking glass alone does not prove that the vacuum remains intact.