The checklist in this guide is compiled from Industrial Registry Law No. 6948, Turkish Commercial Code No. 6102, ISO 9001/14001 quality and environmental management standards, and CE conformity assessment procedures.
Manufacturer verification should rely not only on documents but also on a facility visit, on-site review of past projects and a technical office meeting.
Does it own a production facility? The first and most critical question
For a prefab company to be considered a real manufacturer, it must own its own production facility. The industrial registry certificate, the production address and the actual presence of the machinery line at this address are the strongest evidence that the company is a manufacturer rather than an intermediary.
When questioning the production facility, a website alone is not enough. The location, production line, quality control station and storage area must be observed on site. Most intermediary companies cannot pass this step.
- The industrial registry certificate is the manufacturer's formal record.
- The production address and machinery line must be at the same site.
- Intermediary companies cannot disclose a facility address.
- Verification is incomplete without an on-site visit.
Is a factory visit possible? Is the door open?
A real manufacturer is open to factory visits. Customers wishing to see the production line, panel and steel frame production, the quality control station and the warehouse on site are given an appointment. This openness is also an indicator of production discipline.
Intermediary companies postpone factory visits, repeatedly extending appointments with reasons such as "we are very busy in production right now". This signals that the product is made elsewhere and the company is in an intermediary role.
- A factory visit appointment must be confirmed clearly.
- The production line and quality control should be visible.
- Continuously postponed visits signal an intermediary firm.
- Questions to floor staff should be possible during the visit.
Contract scope: the manufacturer-intermediary difference shows in writing
A manufacturer contract covers production, transport, assembly, warranty and delivery terms together. In intermediary contracts, production responsibility is often handed to a third party; when issues arise, the responsible party becomes unclear.
When reading a contract, the scope, late delivery penalty, warranty term, after-sales support and termination conditions must be evaluated together. AYD Prefabrik's technical office reviews the contract step by step with the customer.
- A manufacturer contract concentrates responsibility in one party.
- In intermediaries, production responsibility shifts to a third party.
- Late delivery penalty must be written into the contract.
- After-sales support scope must be clearly defined.
Deposit and payment method: transparent or opaque?
Manufacturers run their payment plan through a corporate bank account and corporate invoicing. The deposit ratio, milestone payments and final payment terms are all in the contract. This transparency provides legal assurance for both customer and manufacturer.
Intermediaries may use cash payments, personal accounts, missing or delayed invoicing. These practices create both legal risk and serious problems during warranty claims.
- Payment must be made through a corporate account and invoice.
- Deposit ratio must be defined in the contract.
- Milestone payments must align with production flow.
- Personal account payments carry legal risk.
Commercial, tax and industrial registry certificates
A quick way to verify whether a firm is a real manufacturer is through official records. The Trade Registry Gazette, tax registration plate, industrial registry certificate and TOBB membership are the manufacturer's identity card.
The dates, activity descriptions and addresses in these records must be consistent. Older records suggest a continuous production track record; newly established intermediaries are either absent from these records or show a very short history.
- The Trade Registry Gazette record should be checked.
- The tax plate must show the production activity.
- The industrial registry certificate is mandatory for production activity.
- Older records indicate continuity.
Past projects and ISO/CE certificates
Field references reflect the manufacturer's production discipline in practice. Completed projects presented with location, model, delivery date and customer feedback raise reliability.
ISO 9001 quality management, ISO 14001 environmental management and CE conformity certificates show that the production process is audited and meets standards. AYD Prefabrik's project archive and certificates are also shared in writing with the customer.
- Past projects should be presented with location, model and date.
- ISO 9001 documents production discipline.
- ISO 14001 documents environmental management.
- CE certifies construction product conformity.
- Customer feedback provides field-level verification.
Related pages
Frequently Asked Questions
How do I confirm a prefab company is a real manufacturer?
The industrial registry certificate, production address, an on-site visit to the production line and past project references should be evaluated together. If these four are not all in place, the firm is likely an intermediary.
Is a factory visit mandatory?
It is. Seeing the production line, quality control and warehouse on site is the strongest verification distinguishing a manufacturer from an intermediary.
Is buying from an intermediary legally problematic?
It is not illegal, but it carries risk on warranty, after-sales support and contract responsibility. When issues arise, the responsible party often becomes unclear.
Which ISO certificates should a prefab manufacturer have?
The most common are ISO 9001 quality management and ISO 14001 environmental management. CE conformity assessment is also expected for construction products.
What should I watch for in deposit payments?
Payment to a corporate bank account, a deposit ratio defined in the contract and proper invoicing are the core safeguards. Avoid firms requesting payments to personal accounts.
How do I verify past project references?
Calling the customer with their consent, using location, model and delivery date data is the healthiest verification. AYD Prefabrik shares its project archive transparently.
Visit the AYD Prefabrik production facility
Visit our facility, see the production line on site and build your contract with our technical office. Experience the real manufacturer assurance directly.
