Certificates come up at two moments: when something has been installed or replaced, and when a property is sold. They are easy to get wrong because there is more than one, they cover different trades, and only registered people may issue them.
Nothing on this page is legal advice, and municipal requirements change. Use it to ask better questions of your plumber and your conveyancer.
Which certificate covers what
| Certificate | Covers | Who may issue it |
|---|---|---|
| Plumbing / water installation CoC | The water installation on the property: no leaks, correct pipework, no cross-connection, compliant geyser installation, correct terminal water fittings. | A plumber registered with the Plumbing Industry Registration Board (PIRB), or a member of the Institute of Plumbing South Africa (IOPSA) where the municipality accepts it. |
| Electrical CoC | Fixed electrical installation work under SANS 10142-1 — including a geyser isolator, wiring or a pump circuit. | A registered person under the Electrical Installation Regulations. This is not the plumber. |
| Gas CoC | Gas installations, including gas water heaters and gas hobs. | A registered gas practitioner. Again, a separate registration from plumbing. |
When a municipality asks for one on transfer
Some South African municipalities require a water installation certificate of compliance when a property is transferred. The City of Cape Town is the best-known example: its water by-law requires a certificate confirming, among other things, that the installation does not leak and is not cross-connected with an alternative water source.
Requirements differ between municipalities and they change, so the reliable route is to ask your conveyancer which certificates apply to your transfer, and then to book the inspection early. Inspections routinely find small items that must be corrected before a certificate can be issued, and finding that out in the week of registration is how transfers get delayed.
What a plumbing inspection typically looks at
Scope varies by municipality and by the plumber's own checklist, but these items come up consistently.
- Whether the water installation leaks — usually established with a meter test.
- Whether the geyser installation complies: drip tray with a visible overflow, working safety valve, vacuum breakers, isolating valve, pressure control and insulated pipework.
- Whether there is any cross-connection between the municipal supply and an alternative source such as a borehole, wellpoint, rainwater tank or greywater system.
- Whether stormwater is discharged to the sewer, which is generally not permitted.
- Whether terminal water fittings and the plumbing installation are in a serviceable condition.
Questions worth asking before work starts
- Are you PIRB registered, or an IOPSA member? What is your number?
- Which certificate will I receive when this job is finished, and does the quote include issuing it?
- Does any part of this job need an electrician or a gas practitioner, and is that in the quote or separate?
- If the inspection turns up items that must be fixed before you can certify, will I get those quoted separately before you do them?
- Will the certificate and the invoice be issued in the name of the registered business?
Why this matters even when nobody is asking
Insurers ask for compliance documentation after a claim more often than homeowners expect, particularly on a geyser. Conveyancers ask for it years later. And a certificate issued by someone who is not registered to issue it is not a certificate at all — it is a piece of paper that fails at the exact moment you need it.
Keep certificates and invoices together with the rest of your property documents. It costs nothing and it is the cheapest way to protect the money you have already spent.
Common questions
Is a plumbing CoC required everywhere in South Africa?
No. Requirements on property transfer are set by municipalities and differ between them — the City of Cape Town's water by-law is the best-known requirement. Confirm with your conveyancer and your municipality which certificates apply to your property.
How long is a certificate valid?
Validity is set by the applicable regulation or by-law and by what has changed since the inspection. Any subsequent work on the installation can affect it. Ask the issuing plumber what applies to your certificate and keep it with your property documents.
Can the plumber who did the work also certify it?
Yes, provided they are registered to issue that certificate. The important question is registration, not who held the spanner.