What Should Sit Behind a Third-Party Certificate?
- 10 hours ago
- 5 min read
Ask most people what third-party certification gives them, and they'll describe a document: a logo, a certificate number, maybe a PDF they can download and file away. That's understandable. It's the part everyone sees but it's the least useful part of the story.
A certificate is a summary. The value sits behind it, in the evidence, controls and ongoing assessment that justify the claim being made. The real question isn't "does this product have third-party certification?" It's "what evidence, controls and ongoing assessment sit behind that certification?"
That question is about to get a lot more attention. The Government's 2026 Construction Products Reform White Paper proposes minimum transparency requirements for third-party certification schemes, stating that certificates should contain sufficient information to evidence product performance claims, including test results.
The White Paper sets out the Government's proposed direction, providing a clear indication of how construction product certification is expected to develop. In this blog, we take a look at what should sit behind a third-party certification scheme that meets the proposals of the Construction Products Reform White Paper.
What is third-party certification?
Third-party certification, sometimes referred to as construction product certification, is independent verification that a product meets defined requirements. For construction products, this can combine assessment of test evidence with factory production control, surveillance and periodic review to provide continuing assurance of performance.
The certificate is the end result, not the evidence
A certificate exists because a wider process has taken place: testing, assessment, factory checks, ongoing surveillance. The certificate is the conclusion of that process, not a substitute for it.
That distinction matters because certification can easily slide into a "certificate equals compliant" mentality. It's a convenient shorthand, but it isn't the same as understanding what has actually been demonstrated. Anyone specifying, purchasing or approving a certified product should be able to see the reasoning behind the claim, not just take the outcome on trust.
The fire testing evidence behind the certificate
Fire resistance or reaction to fire test reports, classification reports, Direct Field of Application rules and Extended Field of Application reports can form part of the evidence base that certification draws on and interprets. Certification draws on suitable technical evidence alongside assessment of the manufacturer's production controls and management systems. Together, these provide the basis on which certification can be awarded and maintained.
Certification isn't a replacement for suitable test evidence; it's a framework for applying that evidence correctly and consistently. Anyone relying on a certificate should be able to trace it back to the reports that support it.
Factory production control
Testing a carefully prepared specimen tells you what's possible under controlled conditions. It doesn't tell you what leaves the factory every day.
That's where factory production control comes in: the manufacturer's own quality systems, documented processes and material or component controls that keep everyday production in line with the certified specification. Certification bodies assess these controls because consistency, not just a one-off test result, is what makes a certificate meaningful over time. It's a distinction the White Paper itself draws: it defines product certification as a broader process than testing alone, describing it as ongoing assurance of compliance built on testing, factory production control and evaluation together - not any one of those in isolation.
Ongoing surveillance
Ongoing surveillance supported by periodic audits and reassessment is what keeps certification current. A certificate issued several years ago and never revisited isn't much of an assurance.
This is one of the clearest differences between certification and a one-off test report: certification is meant to provide continuing assurance, not a snapshot frozen at the point of issue. This is why so many specifiers and contractors demand third-party certification from their supply chains.
What happens when the product changes?
Manufacturing rarely stands still. A new hardware supplier, a different core material, a changed adhesive, an altered manufacturing process, larger dimensions, a new glazing system - any of these can affect whether the original evidence still applies.
Product changes need to be controlled because even relatively small variations can affect whether existing evidence and certification remain applicable.
Depending on the change, it may already be covered by the product's Direct Field of Application or an existing EXAP. Where it falls outside that scope, additional testing or assessment may be required. This is why manufacturers need a clear process for notifying their certification body whenever a certified product changes.
The certification body can then determine whether the existing evidence remains suitable or whether further testing or assessment is required. Without this process, certification can gradually move outside the scope of the evidence that originally supported it.
What exactly has been certified?
A meaningful certificate should let someone identify, at minimum:
The product and how it's identified
The manufacturer
The product's construction or specification
The performance characteristics covered
The standards and scheme requirements applied
The scope and limitations of the certification
Its current validity status
This matters more for some products than others. Let’s look at fire doors as an example; relatively small changes to construction, hardware or dimensions can undermine the evidence that originally supported a claimed performance. A certificate that doesn't make the specifics clear leaves too much for assumption.
Another crucial element when verifying a certificated product is that when a certificate lookup returns a single word - valid - it tells you very little. Specifiers need to understand the scope of what's covered, the performance claims being made, and the limitations attached to them, not just whether a certificate is currently active.
The 2026 White Paper's proposed minimum transparency requirements are aimed squarely at this gap, so that users can more easily understand what different certification schemes actually do and don't provide.
UKTC ensure schemes provide publicly accessible certification information, with certificates linked to the scheme rules under which they were issued. This information is held digitally in the UKTC ensure vault, providing stakeholders with a single source of truth.
Through the product label or certificate, stakeholders can access the UKTC ensure vault to check the current certification status and view the information supporting it.
Certification and the golden thread
Certification information connects to product identification and traceability, and increasingly to the golden thread. The White Paper's direction of travel points toward greater use of digital product information, identifiers and records to support accountability over a building's lifecycle.
This is the direction UKTC ensure was built around:
Accessible certification information with publicly available scheme rules and clear revision numbers to allow stakeholders to align certification with the applicable rules.
Traceable product certification through labelling that features a QR code to access a single source of truth that holds the certificate and relevant evidence.
Clear labelling that identifies the manufacturer, expected product performance and year of manufacture.
Annual surveillance and factory production control audits that provide ongoing assurance that applicable management and production requirements continue to be met.
These key features all link back to the golden thread of building safety information. These features support the wider move towards accessible, traceable product information and help manufacturers contribute to the golden thread of building safety information.
So, next time you’re looking at your own third-party certification, or if you’re reviewing your supply chain, can you answer these questions…
Are you confident that the third-party certification will hold up to public scrutiny?
Is the third-party certification scheme ready for regulatory reform?
Because in today’s market, the question that matters isn't whether a product carries third-party certification. It's what stands behind it.
See what sits behind UKTC ensure
Explore UKTC ensure's approach to transparent, traceable third-party certification and see how certification information can be accessed by manufacturers, specifiers and contractors.
