What to Expect During a Gas Safety Check

Scroll Down to view project 

by | Jan 28, 2026

A Gas Safety Check is one of the simplest ways to keep your home safe, efficient, and running exactly as it should. Whether you’re a homeowner or a landlord, knowing what happens during the visit can give you real peace of mind. A qualified Gas Safe engineer will carry out a series of checks to make sure your appliances are working safely and performing properly. 

Here’s a clear breakdown of what to expect. 

1. A full visual inspection of your gas appliances 

The engineer starts by checking the overall condition of your boiler, hob, fire, or any other gas appliance. They’ll look for signs of wear, damage, or incorrect installation. 

2. Checking ventilation and airflow 

Gas appliances need the right amount of ventilation to burn safely. The engineer will make sure nothing is blocked or restricted, and that your home has the correct airflow. 

3. Testing for gas leaks 

Specialist equipment is used to detect even the smallest leaks around pipework and appliances. This is one of the most important parts of the check and helps keep your home safe. 

4. Ensuring appliances are burning gas correctly 

The engineer will check flame colour, burner pressure, and combustion levels. This confirms that your appliances are burning efficiently and safely. 

5. Inspecting flues and chimneys 

Flues and chimneys must remove harmful gases from your home. The engineer will check they’re clear, secure, and working as they should. 

6. Checking safety devices 

Modern appliances have built‑in safety features such as thermostats, pressure relief valves, and automatic shut‑off systems. These are tested to make sure they’re functioning properly. 

7. Reviewing boiler performance 

Your boiler will be checked for stability, efficiency, and correct operation. This helps identify any early signs of wear before they turn into bigger issues. 

8. Clear feedback and recommendations 

At the end of the visit, you’ll receive a clear explanation of the engineer’s findings. If anything needs repairing or adjusting, you’ll know exactly what the next steps are. 

Why Gas Safety Checks Matter 

Regular checks help prevent carbon monoxide risks, improve efficiency, and extend the life of your appliances. For landlords, they’re a legal requirement – but for every homeowner, they’re simply good practice. 

L G Bullen’s Gas Safe engineers carry out thorough, friendly checks across Merseyside, giving you confidence that your home is safe and your appliances are running exactly as they should. 

Related Projects