Sourcing heated insulating glass units from China
Heated insulating glass units classified under heading 7008 pay 0% UK duty from China across the listed lines. For building use, obtain the declaration of performance and marking evidence, and assess electrical compliance for the supplied heating system. Cambridge China Bridge sources heated insulating glass units.
Zero duty under heading 7008
Read from the UK Trade Tariff on 2 October 2026, heading 7008 covers multiple-walled insulating units of glass. Every supplied commodity line carries 0% duty for goods from China. The supplied records list no anti-dumping or countervailing duty, suspensions or attached import controls.
The table separates coated and body-tinted configurations sharing a code. Other sealed double-pane units can contain air, other gases or a vacuum. Confirm the commodity code from the glass construction and everything shipped with it, including controllers and power supplies. See the double-glazed units guide for the wider heading.
For building use, obtain the declaration of performance and marking evidence for the insulating unit. Legitimately CE-marked construction products can continue to be supplied in Great Britain without an additional UK marking. Match safety glazing and energy performance to the installation. Electrical safety rules cover equipment within their stated voltage scope; assess the heating unit and supplied electrical equipment accordingly.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Heated insulating units with an absorbent or reflecting glass layer | 7008 00 20 00 | 0% | None |
| Other heated units with two sealed panes and air, gas or vacuum between | 7008 00 81 00 | 0% | None |
| Other heated insulating glass units | 7008 00 89 00 | 0% | None |
Specify the heated pane and electrical interface
Specify each pane, coating face, cavity fill, spacer, edge seal, dimensions and overall thickness. Identify which pane heats, its rated supply, power consumption, heating area, contact-strip position, cable exit and connector. Agree the controller, sensor position, temperature protection, wiring diagram and installation instructions. Request heating results for the actual glass size and make-up ordered.
For equipment within electrical safety scope, importers must check the manufacturer's conformity assessment, provide importer identification and ensure understandable English instructions accompany it. Request matching technical documentation and a declaration of conformity. Assess electromagnetic compatibility for supplied electronic controls and hazardous-substance restrictions for electrical equipment, taking account of applicable exclusions. Arrange testing and certification around the complete supplied configuration.
Worked duty example
Illustrative example, not a quote: Illustrative order: 50 coated heated insulating glass units under 7008 00 20 00, invoiced at £11,000 free on board, with £2,400 of freight and insurance to the UK. The customs value is £13,400. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £13,400, so it is £2,680. 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
Glass and seals: compare delivered units with the cutting list, coating orientation and approved sample. Check edge chips, scratches, spacer alignment, seal continuity and misting between panes.
Heating: have a competent electrical tester compare resistance, power consumption, heating distribution and temperature protection with the agreed test method. Check for cold areas and local hot spots.
Connections and records: inspect contact strips, cable strain relief, insulation and connector identification. Match unit labels, controller models, test reports and installation instructions to the goods received.
Packing and arrival: check upright support, separation and corner protection. Photograph broken glass, damaged cable exits and wet crates before unpacking further. Use the inspection guide to agree recording and acceptance checks.
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What goes wrong
Wrong heating-pane orientation or misplaced cable exits can make units unsuitable for the intended frames. Damaged contacts can cause uneven heating, while an incompatible controller can defeat the agreed temperature control. Weak edge seals allow misting; poor support in transit causes glass breakage or damaged connections.
Approve a working sample with the intended controller and frame arrangement before production. Agree heating acceptance criteria, connection drawings and replacement responsibilities. Keep failed units identified and retain photographs and test records before discussing repair or replacement.
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 heated insulating glass from China?
The supplied tariff records dated 2 October 2026 show 0% on every heading 7008 line, with no anti-dumping or countervailing duty. Confirm that the supplied product belongs in this heading.
Is the glass declaration of performance enough?
Obtain it for the building glass, then assess the electrical equipment supplied. Where electrical safety rules apply, check conformity assessment, importer identification and English instructions.
What should I specify for heated glazing?
Specify the heated pane, coating face, supply, power consumption, heating area, contacts, cable exit, controller, sensor and temperature protection, alongside the glass and seal construction.
How do I check that heated glass works on arrival?
Use an agreed test method with a competent electrical tester. Compare resistance, power consumption, heating distribution and temperature protection, then inspect seals, cables and transit damage.