Gas Safety Certificate Cost
from £59 only in selected areas
- Discounts on bulk properties
- Special Discounts for Estate Agent
- London Wide & M25 Coverage
- Gas Safe Registered Engineers
Special Offer: Gas Safety Certifiacate & Boiler Service £149
RESIDENTIAL AND COMMERCIAL GAS SAFETY CERTIFICATES & MORE
We provide the best Gas Safety services across London and the M25 Areas. All of our engineers are fully qualified and Gas Safe registered, ensuring professional and reliable service every time. As one of the largest and most trusted companies in the region, we deliver high-quality compliance at competitive prices. We also offer special bulk discounts for estate agents and landlords with multiple properties, making us the most cost-effective and dependable choice for your gas safety needs.
Our Services
Discount prices for bulk orders available
Residential Services
Commercial Services
How Gas Safety Inspection Is Performed
A Gas Safety Inspection (CP12) is a structured process carried out by a qualified Gas Safe registered engineer to ensure all gas appliances and installations in a property are safe to use. Here’s how it’s typically performed step by step:
Initial Visual Inspection
The engineer begins with a visual check of:
- Boiler, gas hob, and other appliances
- Pipework condition and connections
- Signs of corrosion, leaks, or damage
- Proper installation and positioning
This step ensures everything looks safe before testing begins.
Appliance Safety Checks
Each gas appliance is tested individually:
- Flame color and stability (should be blue and steady)
- Burner pressure and heat input
- Safety devices (flame failure device, thermostats)
Ensures appliances are burning gas efficiently and safely.
Flue & Ventilation Inspection
The engineer checks:
- Flue system (removes harmful gases like CO)
- Proper ventilation (air supply for combustion)
- No blockages or leaks
Critical to prevent carbon monoxide poisoning.
Gas Tightness Test
A pressure test is done at the gas meter:
- Checks for any gas leaks in the system
- Uses specialist equipment (manometer)
Even small leaks can be dangerous, so this is essential.
Safety Device & Pipework Check
The engineer verifies:
- Emergency control valve accessibility
- Pipework is properly secured and protected
- (Where applicable) bonding/earthing
Ensures safe operation and emergency shutdown capability.
Issuing the Gas Safety Certificate (CP12)
After inspection:
- A Gas Safety Certificate (CP12) is issued
- Lists all appliances checked
- Shows pass/fail status and any defects
Required annually for landlords under UK law.
