Sourcing fire-rated glazing units from China
Fire-resistant insulating glass units from China carry 0% UK duty across the relevant codes, with no listed anti-dumping or countervailing duty. Confirm the applicable construction product declaration and marking requirements with the relevant authority; check fire test evidence for the proposed glazed system. Cambridge China Bridge sources fire-resistant insulating glass units.
Duty on fire-resistant insulating units
Read from the UK Trade Tariff on 2 October 2026, heading 7008 covers multiple-walled insulating units of glass. This guide concerns sealed fire-resistant insulating units supplied without frames. Single laminated panes and complete framed windows need separate classification. See the wider insulating glass guide.
All relevant lines carry 0% duty for goods from China. The supplied tariff record lists no anti-dumping or countervailing duty, suspensions or attached import controls. The table separates coated and body-tinted variants sharing the same code; other sealed units are distinguished by their construction.
Confirm the commodity code using the pane construction, coating and cavity description. For other units, the sealed two-pane line includes air, other gases or a vacuum. A fire-resistance claim alone does not identify the tariff line.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Fire-resistant insulating units with an absorbent or reflecting layer | 7008 00 20 00 | 0% | None |
| Other fire-resistant units with two sealed panes and air, gas or vacuum | 7008 00 81 00 | 0% | None |
| Other fire-resistant insulating units, including triple glazing | 7008 00 89 00 | 0% | None |
Specify the fire-resistant glazed system
Specify the intended opening, required fire performance and duration, pane composition, cavity, overall thickness and cutting list. Ask the supplier to identify the frame, glazing beads, seals, setting blocks and installation details covered by its evidence. Have the project designer check the proposed unit sizes and arrangement against that evidence before ordering.
Confirm with the relevant authority which declaration of performance and marking requirements apply to the supplied insulating glass units. Obtain the declaration, initial type test reports and factory production control certificate for the supplied product. CE marking remains available for construction products placed on the Great Britain market.
Government fire-safety guidance recommends test evidence for the fire resistance and external fire exposure performance of glazed systems wherever possible. Request evidence for the proposed assembly, alongside the unit's thermal performance and edge-seal evidence. Use testing and certification support to resolve gaps before production.
Worked duty example
Illustrative example, not a quote: A project batch of fire-resistant insulating glass units for a glazing contractor, illustrative under 7008 00 81 00, invoiced at £36,000 free on board, with £6,000 of freight and insurance to the UK. The customs value is £42,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £42,000, so it is £8,400. 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
Identity: match unit labels, batch references and pane composition to the order, declaration and supporting reports. Record any unexplained material substitution.
Dimensions: measure sampled widths, heights and overall thickness against the cutting list. Check pane orientation, coating face and the specified edge details.
Seals and condition: inspect edge-seal continuity, damaged edges, cracks, scratches, visible delamination and moisture between panes. Compare spacers and sealants with the agreed specification.
Packing and arrival: check upright support, separators, corner protection and crate bracing before loading. On arrival, photograph packing damage and isolate damaged units. See our inspection guide.
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What goes wrong
A supplier may provide a fire test report for a different pane composition or assembly. The ordered size, frame or glazing seals may fall outside the report's stated scope. Compare the proposed construction with the evidence before accepting the order, and record agreed changes rather than relying on a generic fire-resistant description.
Poor edge seals cause misting, incorrect sizes prevent fitting, and inadequate bracing leads to transport breakage. Agree the edge-seal system, dimensions and packing drawings before production. Visual inspection checks condition and workmanship; ask separately for the evidence supporting the claimed fire performance.
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 fire-resistant insulating glass units from China?
The relevant heading 7008 lines carry 0% duty in the tariff record read on 2 October 2026, with no listed anti-dumping or countervailing duty.
What documents should I request before ordering?
Request the declaration of performance, marking details, initial type test reports and factory production control certificate, plus fire-performance evidence covering the proposed glazed assembly.
Does CE marking mean the unit suits my fire-resistant window?
Check the declared performance and assembly evidence against your project specification. Compare the unit size, pane composition, frame and glazing details with the evidence supplied.
Can I use the same report after changing the frame or seals?
Ask the supplier to show that the proposed changes fall within the report's stated scope. Have the project designer review any mismatch before ordering.