Your engineer will carry out a complete assessment of all gas appliances, pipework and ventilation. Instead of listing everything as bullet points, here is how the process unfolds in a natural flow.
The inspection begins with a visual check of all gas appliances in the property, including the boiler, gas hob, oven, and any gas fires. The engineer looks for signs of damage, incorrect installation or potential hazards. They then assess the ventilation around each appliance to ensure that combustion gases can safely escape. This step is essential for preventing carbon monoxide build-up.
Next, the engineer tests the functionality of each appliance. They check flame stability, pressure levels, burner performance and safety devices. They also examine the flue or chimney system attached to the boiler or gas fire, ensuring that harmful gases are expelled correctly. Finally, the engineer performs a tightness test on the internal gas pipework to confirm there are no leaks.
Once all inspections and tests are complete, the engineer records their findings and issues the CP12 certificate. If any issues are identified, they will explain them clearly and outline the steps needed to bring your property back into full legal compliance.