The question of when a glazing certificate is required has no single answer — it depends on the project, the safety glazing involved and who is asking.
“Do I need a glazing certificate?” comes up on projects of every size. The honest answer is: it depends on the project and who is asking. This guide sets out the common scenarios in which a certificate is typically requested, so homeowners, builders, architects, contractors, developers, project managers and inspectors know when to raise it — without overstating any legal position. For what a certificate is, see glazing certificates explained.
Scenarios where a certificate is commonly requested
Certain situations reliably bring certification into the conversation:
- Safety glazing is involved — doors, sidelights, low-level and shower glazing, where confirming the correct safety glass matters most.
- Commercial and public buildings — offices, retail, shopfronts and public-access spaces, where duty of care and inspection are higher.
- A client, contract or specification requires it — many building contracts simply list a glazing certificate as a deliverable.
- Insurance or a property transfer — insurers or a sale process may ask for confirmation that glazing complies.
- An authority or inspector asks — where a building inspector requests confirmation as part of sign-off.
Who tends to ask, and why
Different parties raise it for different reasons. Homeowners may want peace of mind or need it for a sale; builders and contractors to close out a contract deliverable; architects and specifiers to confirm the design intent was met; developers and project managers to manage risk across a project; and building inspectors as part of confirming compliance. In each case the certificate answers the same question: was the glazing done to the applicable requirements?
How to handle it on your project
The practical approach is to raise it early. If a certificate might be needed, agree at the outset who will issue it and under what framework — for example a SAGGA Certificate of Conformance through an accredited installer for safety glazing. Keep clear records of the glass specification and marking, and confirm the installation was carried out correctly. Where it is unclear whether a certificate is required, confirm against the applicable requirements and any contractual or municipal conditions rather than guessing.
When a glazing certificate is required, in short
In short, a glazing certificate is commonly required where safety glazing is involved, on commercial and public projects, and where a contract, insurer or authority asks for it. Whether one is strictly required for your project should be confirmed against the applicable requirements and any contractual conditions.
Glazing certificate required: the short answer
So when is a glazing certificate required? In South African practice a glazing certificate is most often required for commercial, public and larger glazed installations, and wherever a building plan or client specifically calls for one. It confirms that the glazing was carried out to the applicable standards by a competent installer. For a straightforward domestic window replacement a certificate is not usually demanded, but if you are unsure whether a glazing certificate required for your project applies, ask before work starts — issuing one after the fact is harder.
Who is responsible, and when to settle it
Most of the difficulty around when is a glazing certificate required is not technical. It is that nobody agreed early who was responsible for it, and the question surfaces at handover when the people who could have answered it have demobilised.
- The client or owner ultimately holds the building and its records, and is usually the party a future buyer, insurer or authority asks.
- The architect or designer sets the specification, and is the right person to confirm what a particular opening requires.
- The main contractor usually carries the obligation to deliver the completed work and its documentation.
- The installer or glazier is the party who actually fitted the glass and knows how it was fixed.
- The supplier — Coetz™ in this case — can confirm in writing what was supplied against a given order. That is a supply record, not a compliance opinion on the installed work.
Establish that allocation in writing before the glass is ordered, ideally at the same meeting where you ask when is a glazing certificate required. It is a five-minute conversation at the start of a project and a genuinely expensive one at the end, which is why it sits at the centre of any sensible discussion of glazing certificate required.
What a supplier can and cannot confirm
This distinction is worth being precise about, because it is where expectations most often diverge once somebody asks when is a glazing certificate required.
- What we can confirm: what was supplied on a given order — the product, the sizes, the glass specification and the date. That is a factual record of the supply.
- What we cannot confirm: whether the installed work is compliant. We are supply-only on aluminium windows and doors, so we do not inspect, fit or sign off the installation, and compliance depends heavily on how and where glass is installed.
That boundary is not evasion; it is the honest position of any supplier who did not carry out the installation. Where a project needs a determination on a glazing certificate, that belongs with the project’s own professional team.
Records worth keeping
Whatever the answer to when is a glazing certificate required turns out to be for your project, the same small set of records answers most later questions. Assemble them while the job is running rather than reconstructing them afterwards.
- The order confirmation showing what was supplied, in what specification and what sizes.
- The delivery documentation, showing what actually arrived on site and when.
- Photographs of the glass markings before the beading covers the edge. Once the beading is on, the marking is no longer visible.
- Photographs of the installation as it proceeds, particularly at junctions and fixings.
- Correspondence recording who was responsible for the specification and for any sign-off.
Those five items are usually what an inspector, insurer or incoming owner is actually asking for when they raise the glazing certificate required question. Keeping them costs nothing during the build.
Questions to put to your professional team
If you are a homeowner or a client rather than a specifier, these are the questions that get you a usable answer on glazing certificate required without needing technical knowledge yourself.
- “Which openings on this project have a specific glass requirement, and who determined that?”
- “Who is responsible for producing any documentation, and is it in their scope?”
- “When in the programme will that be produced, and what do you need from me?”
- “What records should I be keeping as the work proceeds?”
- “If a requirement is unclear, who makes the call — and is that written down?”
Asked at the start, these are routine. Asked at handover, when is a glazing certificate required becomes a dispute rather than a question.
If the requirement is unclear
Uncertainty about when is a glazing certificate required is common and is not in itself a problem — proceeding while pretending to certainty is. Where a requirement is genuinely unclear:
- Ask the specifier before the glass is ordered, not after it is installed.
- Get the answer in writing. A verbal instruction is worth very little a year later.
- Where nobody on the team can answer it, that is the point to bring in a suitably qualified professional rather than to guess.
- Do not rely on a supplier, a web page or a forum — including this one — as the determination. General guidance cannot account for your specific building.
This page is general guidance to help you ask better questions about when a glazing certificate is required. It is not a compliance opinion, not a substitute for professional advice, and not a determination for any particular project.
Timing: why this surfaces late
The pattern is consistent enough to be predictable. Nobody asks whether a glazing certificate required applies at design stage, because at that point the building is drawings and the question feels premature. It surfaces at handover, at a sale, at an insurance renewal or during a compliance inspection — and by then the contractor has demobilised, the glazier has moved on, and the beading is covering the glass markings.
Anyone who has been through it once raises the glazing certificate required question at the start of the next project, before anybody has to ask when is a glazing certificate required under pressure. It costs nothing then and a great deal later.
A practical sequence to follow
If you take nothing else from this page, take the sequence. It applies whether or not a glazing certificate required turns out to apply to your project.
- At design stage, ask the specifier which openings carry specific requirements and record the answer.
- Before ordering, confirm in writing who is responsible for any documentation and whether it sits in their scope and fee.
- On delivery, keep the order confirmation and delivery documentation together in one place.
- Before beading, photograph the glass markings on every pane. This step takes minutes and cannot be repeated later.
- At handover, collect the documentation while the contract is still open and people are still contactable.
Followed in that order, the glazing certificate required question becomes administrative rather than adversarial. Skipped, it becomes the thing holding up a sale two years later.
The short answer, and its limits
So when is a glazing certificate required? The honest answer is that it depends on the building, the openings and who is asking — and that the determination belongs to your project’s design team rather than to a supplier or a web page. Anyone who tells you confidently when a glazing certificate is required without seeing your drawings is guessing.
What we can say usefully is procedural. Ask early when a glazing certificate is required for your particular openings. Get the answer in writing. Record who gave it. Keep the order confirmation, the delivery documentation and photographs of the glass markings. Those steps apply whether or not a glazing certificate required turns out to be relevant to you.
If the question has reached you late — at a sale, an insurance renewal or an inspection — start by establishing what was actually supplied and installed, because that is the factual base any later determination rests on. Coetz™ can confirm what was supplied against an order, which is often the piece a client cannot otherwise reconstruct.
This page exists to help you ask the right questions about when a glazing certificate is required. It is general guidance, not a compliance opinion, and not a substitute for professional advice on your specific project.
Situations that commonly raise the question
- Buying or selling a property. This is where the glazing certificate required question most often lands on a homeowner who was not involved in the original build. If you are selling, gather the records early; if you are buying, ask before transfer rather than after.
- Insurance and claims. Insurers occasionally ask what glass was installed and when. Having the supply record to hand is what turns that from a problem into a form.
- Alterations and additions. Changing an opening can reopen the glazing certificate required question for that opening even where the rest of the building is untouched.
So: when is a glazing certificate required in your case? Ask your specifier, ask early, and get the answer in writing. That is the only reliable route, and it is why every practical section on this page returns to the same point — the glazing certificate required determination belongs to the people who designed and built your building, not to a supplier or to a general guide.
a glazing certificate: frequently asked questions
Who decides whether a glazing certificate is required?
The project’s design team — typically the architect or the specifier — determines what a particular opening requires. A supplier cannot make that determination, because it depends on the building and on how the glass is installed.
Can Coetz issue a glazing certificate?
Coetz™ is supply-only on aluminium windows and doors, so we do not inspect or sign off installed work. We can confirm in writing what was supplied against a given order — product, sizes, glass specification and date. That is a supply record rather than a compliance certificate.
When should I raise this on a project?
Before the glass is ordered. Establishing in writing who is responsible takes minutes at the start and becomes difficult once the contractor has demobilised, which is usually when a glazing certificate required question first surfaces.
What records should I keep?
The order confirmation, the delivery documentation, photographs of the glass markings before the beading covers the edges, photographs of the installation, and correspondence recording who was responsible. Those five items answer most later questions.
What if nobody on my project can answer the question?
That is the point to bring in a suitably qualified professional rather than to proceed on assumption. Do not rely on a supplier, a web page or a forum as the determination for your building.
Sources
- SAGGA glazing certification procedure
- SANS 10400-N & the building regulations (sans10400.co.za)
- AAAMSA
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What this means in practice on a real project
Reading about glazing certificate required is one thing; evidencing it on a live project is another. In our experience the difficulties almost never come from the requirement itself — they come from nobody having decided, early enough, who is responsible for the decision and who will produce the paperwork at the end. That question is worth settling at specification stage rather than at handover.
Decide who is responsible before the glass is ordered
On a supply-only order the responsibilities split. The supplier is accountable for manufacturing what was specified and for describing accurately what has been supplied. The party doing the installing is accountable for how the unit is fitted, packed and sealed. Whoever signs off the completed work is accountable for confirming that the installed result is appropriate for the application. Those are three different roles, and on smaller projects they are often three different companies, which is exactly how gaps appear.
Ask for the documentation while the job is still open
Whatever record your project needs is far easier to obtain during the contract than a year later. Keep the order confirmation showing what was supplied, keep the delivery documentation, and photograph the glass markings before the units are installed and the edges are covered by beading. Those three items answer most later questions about what was actually fitted, and they cost nothing to collect at the time.
Where Coetz™ fits in
Coetz™ supplies aluminium windows and doors glazed as standard with 6.38 mm clear laminated safety glass, and states on the order what has been supplied. Aluminium windows and doors are supplied only; automatic door systems are installed and serviced by our team. We are glad to confirm in writing what a given order contains, which is usually what a contractor or building inspector actually needs from the supplier.
An important limit on this page. The summary above is general guidance, not a compliance opinion, and it is not a substitute for the published standard or for professional advice. Requirements vary with the application, the building and the specifics of the installation. Where a decision about glazing certificate required carries safety or regulatory consequences, work from the current published text and engage a suitably qualified competent person for your project.