Aluminium windows and doors
MSC audits aluminium window and door factories in Foshan and the rest of the Pearl River Delta, and inspects orders before shipment, at $240 per inspector-day, all inclusive. Our partner inspector is based in Dongguan. He works through your checklist item by item; if you do not have one, we draft it from your drawings and specification and you approve it before the visit. For a new client, we check up to three candidate suppliers' official records free of charge before the audit.
Foshan is one of China's main centres for aluminium profiles, windows and doors. Many companies selling to export buyers there are trading companies or showrooms, and the same window can be quoted by several of them. Before a deposit, you want to know who actually makes your windows, where the profiles, glass and hardware come from, and whether the test reports you were sent cover the product you are buying. How to check a Chinese supplier before paying a deposit.
| Area | What the inspector records |
|---|---|
| Company and site | The factory is at the stated address and operated by the company on your contract; records checked beforehand. |
| Aluminium profiles | Own extrusion or bought profiles; profile supplier name; mill certificates on file; profile series in stock against your specification. |
| Fabrication | Cutting, machining, corner joining, glazing and assembly done on site or subcontracted; equipment in use. |
| Surface treatment | Own powder coating or anodising line, or outsourced, and to whom. |
| Glass | Own insulating glass line or bought glass; glass supplier; labels and markings on glass in stock. |
| Hardware and seals | Brands and models in stock against your specification: handles, hinges, locks, rollers, gaskets. |
| Quality control | Incoming checks, in-process checks and final inspection actually done, with records. |
| Capacity | Staff, equipment and current workload against your order size and delivery date. |
| Documents | Test reports and certificates held by the factory, and which product series they cover. |
Samples are drawn under ISO 2859-1 AQL or the plan you set. You receive photos and measured values within 24 hours, and you decide whether the goods ship. We do not carry out laboratory tests such as air infiltration, water penetration or structural load: these need an accredited laboratory.
Australia: windows and doors must meet AS 2047. Ask for the full test report from a NATA-accredited laboratory, and check that the product series, configuration and maximum size tested match your order. In July 2026, Building Connection reported that seven of eight imported Chinese window and door products sent for independent testing failed, including one advertised as compliant.
Europe: windows and external doors fall under EN 14351-1 and need CE marking with a Declaration of Performance. Check that the declared performance and the product match.
During an audit or inspection we check that the documents exist and match the products we see. We do not certify compliance.
$240 per inspector-day, all inclusive, travel included. Supplier check and factory audit package: for a new client, we check up to three candidate suppliers free of charge, then audit the one you shortlist. For a first job, you pay after you receive the report, by PayPal or bank transfer.
Tell us what you need. We typically reply within one business day.
