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How Long is a Certificate of Compliance Valid For? Expiry Rules Explained

Updated October 2026 · 7-minute read · COC Certificate

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Electrical installation whose Certificate of Compliance validity period applies
How long each Certificate of Compliance stays valid.

One of the most overlooked risks in property transactions is a CoC that expires between the signing of the offer to purchase and the actual registration of transfer at the Deeds Office — a process that typically takes 6–12 weeks. This guide explains the exact validity period for each CoC type, what triggers early expiry, and what to do if a certificate has lapsed.

In short: An electrical CoC (including one covering a solar PV system) or an electric-fence CoC is valid for 2 years from issue; a gas CoC and a Cape Town plumbing (water) CoC have no fixed expiry, but each property sale needs a new one; and a beetle certificate has no fixed period but is issued fresh for each sale. Any alteration to the installation voids the certificate immediately, and an expired CoC cannot be renewed — a new inspection is required.

Validity Periods by Certificate Type

⚡ Electrical CoC

2 years

From date of issue — OR until any alteration to the electrical installation, whichever is sooner. SANS 10142-1 / GNR1593 of 2009.

🔵 Plumbing CoC

Per transfer

No fixed expiry — the City’s form names the seller and the buyer, so it covers one sale. A new certificate is needed for every transfer, or after any change to the water installation. City of Cape Town Water By-law 2010, Section 14(1).

🔥 Gas CoC

Per sale

No fixed expiry. Any later work on the gas installation (pipework, appliances, regulator, or cylinder position) needs a CoC for that work, and a property sale needs a new CoC for the whole system. Source: SAQCC Gas; installations to SANS 10087-1.

⚠️ Electric Fence CoC

2 years

From date of issue — OR until any modification to the electric fence system (energizer, earth, fence wires, warning signs). SANS 10222-3.

☀️ Solar / SSEG CoC

2 years

A solar PV system is part of the electrical installation, so its CoC follows the electrical 2-year rule — OR until any modification to the solar PV, inverter, battery, or AC integration. SSEG Registration itself does not expire but must be transferred to the new owner.

🐛 Beetle Certificate

Per transfer (≈3–6 months)

A beetle certificate (wood-borer / WDO clearance) carries no fixed statutory validity, but banks and conveyancers typically require one issued within 3–6 months of transfer — so it is usually done fresh for each sale.

What Automatically Voids a Certificate Before Expiry

The calendar expiry date is only one way a CoC becomes invalid. Any of the following automatically voids a certificate even if it is within its validity period:

Electrical CoC — voided by:

  • Adding new circuits or electrical points (sockets, light fittings)
  • Changing or upgrading the distribution board
  • Installing a new geyser, pool pump, EV charger, or oven
  • Wiring an outbuilding, garage, or garden cottage
  • Installing solar panels or a battery inverter
  • Any DIY electrical work — even replacing a single socket

Gas CoC — voided by:

  • Adding, removing, or replacing any gas appliance
  • Changing the gas regulator or cylinder size
  • Extending or modifying the gas pipe run
  • Moving the cylinder location

Electric Fence CoC — voided by:

  • Replacing or upgrading the energizer
  • Adding or removing fence zones
  • Adding, removing, or relocating warning signs
  • Any modification to the earth stake or earth connection

The Transfer Expiry Trap — A Common Cape Town Problem

Consider this scenario: a seller obtains an Electrical CoC in January 2024. The property goes on the market, an offer is accepted in September 2025, and the transfer is registered in November 2025. At transfer the certificate is 22 months old, so it is still valid — but it expires in January 2026, so it came close.

Now consider: the seller obtained the CoC in August 2023 (issued for a previous attempted sale that fell through). The new sale is signed in October 2025, and the transfer is registered in January 2026. The certificate is now 29 months old — it expired in August 2025, which is before the transfer registration. The Deeds Office and the buyer’s bank will not accept an expired certificate.

Rule of thumb: If your Electrical CoC is more than 18 months old when you sign the offer to purchase, commission a fresh inspection immediately — do not risk the certificate expiring before transfer registration. For a 2-year certificate to be safe through an average 8-week transfer, it should be issued no earlier than 22 months before transfer. A plumbing CoC works differently: it covers one transfer, so if a sale falls through and the property is sold to a new buyer, a new plumbing CoC is needed.

What to Do If Your CoC Has Expired

  1. Book a new inspection immediately — an expired CoC cannot be renewed; a fresh inspection and new certificate is required.
  2. Contact your conveyancer — inform them that a replacement certificate is being arranged and provide an ETA. Do not simply send the expired certificate hoping it won’t be noticed.
  3. Budget for re-inspection costs — typically R950–R2,800 for electrical alone, plus any remediation costs if defects are found. Note that remediation work done since the last CoC may have introduced new issues — or resolved old ones.
  4. Allow 2–10 business days — for a straightforward re-inspection with no defects, 2 business days (same-day inspection + 24-hour certificate). For properties with defects, allow 8–15 business days.

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Frequently Asked Questions

How long is an electrical CoC valid for?
An electrical CoC is valid for two years from the date of issue, provided no new or altered electrical work has been done since.
Do I need a new CoC if I have done electrical work?
Yes. Any new or altered electrical installation requires a new or supplementary CoC, regardless of whether the two-year period has passed.
Is a CoC still valid when I sell the property?
Yes — the certificate remains valid for its period, but a transfer generally requires a current CoC, so check the issue date before listing.
How long is a gas CoC valid for?
A gas CoC has no fixed expiry. SAQCC Gas, the body that registers gas practitioners, states that it stays valid unless work is done on the gas installation — but a property sale needs a new CoC, issued after a registered practitioner checks the whole system.
How long is a plumbing (water) CoC valid for?
A Cape Town plumbing (water) CoC has no fixed expiry, but it is tied to one transfer. The City’s form names the seller and the buyer, so a new certificate is needed each time the property is sold, and most conveyancers want one issued shortly before registration. Any change to the water installation after issue also needs a fresh inspection.
How long is a solar / SSEG CoC valid for?
A solar PV system is part of the electrical installation, so its electrical CoC follows the same 2-year rule as any electrical CoC. The SSEG registration itself does not expire, but it must be transferred to the new owner when the property is sold.
Does a beetle certificate expire?
A beetle (wood-borer / WDO) certificate has no fixed statutory validity, but banks and conveyancers usually require one issued within three to six months of transfer, so it is done fresh for each sale.
Can you renew an expired CoC?
No. An expired certificate of compliance cannot be renewed or extended — a fresh inspection and a new certificate are required. Book the re-inspection as early as possible before transfer registration.

Validity periods differ by certificate type, which is why most sellers order the ones they need together. All six are available through our Certificate of Compliance Cape Town service.

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