Certificate of Gas Safety – Certifies your gas installation is safe
Certificate of Gas Safety
The legal document that certifies your gas installation is safe — witnessed by you, not just declared by us.
What is the Certificate of Gas Safety?
The Certificate of Gas Safety is the legal document issued after a gas water heater installation has been tested and found safe. Under Gas Supply Regulation 21, no person shall use any gas appliance that has not been certified safe for use. This certificate is that certification.
It is the output of the final pressure test (S/N 10). Without a successful test, no certificate is issued. Without a certificate, the gas appliance cannot legally be used.
Did You Get a Certificate of Gas Safety?
💬 Licensed Gas Service Worker advice under Regulation 21.
What the certificate contains
Homeone’s Certificate of Gas Safety records the complete chain of accountability for the installation:
Technician name and date — the person who physically carried out the installation
Supervising LGSW name and licence number — the EMA Licensed Gas Service Worker who supervised the gas works and endorsed the test result
Customer acknowledgement and signature — the owner or owner’s representative who witnessed the test and confirmed the installation was tested in their presence
Appliance details — brand, model, and serial number of the gas water heater installed
Gas Supply Regulation 21 — the full text of the regulation is printed on the certificate itself, so the customer has the legal reference in hand
Witnessed, not declared
This is the most important distinction between Homeone’s certificate and what other installers provide.
Homeone does not declare the installation safe and hand you a piece of paper. Homeone invites you to witness the final pressure test with your own eyes. The manometer gauge board is mounted where you can see it. The water level is visible. If it holds steady for 5 minutes, the installation is gas-tight. You see this happen. You are not asked to take anyone’s word for it.
After the pressure test, the technician confirms gas delivery by turning on the cooking hob and the water heater to verify that gas flows normally to all appliances. This concludes the commissioning.
The certificate you sign is your acknowledgement that you witnessed the test and that the installation was tested in your presence. Homeone invites every customer to take a photo of the test result for their own peace of mind.
Customer witnessing the final pressure test — manometer gauge board clearly visible
Gas delivery confirmation — cooking hob lit after the pressure test
The commissioning sequence
The certificate is issued at the end of a four-step commissioning process. Each step must pass before the next begins:
Step 1: Final pressure test. The gas line is pressurised to 450mm water gauge and held for 5 minutes. The customer witnesses the result.
Step 2: Gas delivery confirmation. The gas supply is restored and the technician turns on the cooking hob and the water heater to confirm gas flows normally to all appliances.
Step 3: Certificate issued. The Certificate of Gas Safety is completed with the technician name, LGSW name and licence number, and the test date and time. The customer signs the acknowledgement.
Step 4: Handover. The original certificate is given to the customer. Homeone retains a copy. The installation is complete.
SS608:2024, Section 9.4 — Report requirements
The report must confirm: (i) the installation has been checked and tested for gas tightness, (ii) the appliances are properly connected and tested for leak-free condition, (iii) the appliances are safe for use and working properly, and (iv) the customer has been shown the safe and proper way to operate the appliance. The original copy goes to the customer. The competent person retains a copy.
Why the charge is $0.00
The certificate is a legal requirement under Gas Supply Regulation 21. It is not a service. It is the mandatory output of a compliant installation. Homeone does not charge separately for complying with the law.
Gas Supply Regulation 21(3)
No person shall use any gas appliance that has not been certified safe for use. Any person who contravenes this is liable to a fine not exceeding $5,000.
The bottom line
The Certificate of Gas Safety is not paperwork. It is proof that your gas installation was tested, passed, and witnessed by you personally. It carries the name of the technician who did the work, the LGSW who supervised it, and your own signature confirming you saw the result.
If your installer does not issue this certificate, your gas appliance has not been legally certified safe for use. That is not Homeone’s opinion. That is Regulation 21.
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