Please Note: This Article is 6 years old. This increases the likelihood that some or all of it's content is now outdated.

A Which? investigation has discovered that only two out of ten gas engineers, tested from firms selected at random, carried out their checks correctly.

Their conclusion was that poor work carried out by the majority of gas boiler engineers was putting people’s lives at risk.

Only two of the companies tested, British Gas and Corgi, carried out the minimum legal checks during an engineer call-out, but none of those tested followed the boiler manufacturers’ servicing instructions properly.

The consumer group, which found that boilers set at extremely high pressure went uncorrected by six of the engineers, has now shared its information with Gas Safe Register.

- Advertisement -

Other defects which did not receive attention included not checking the boiler’s cases for leaks, allowing unburned gas to leak out into the room, and in two cases, telling downright lies about safety checks.

Which? had called out five major companies and five independent heating engineers chosen completely at random.

Richard Lloyd, Which? Executive director said:

“The results are shocking, with most engineers we put to the test failing to do what is legally required.

“Faulty boilers could have serious or even fatal consequences for consumers so more must be done to check up on and crack down on incompetent engineers.”

Gas Safe Register is the official gas registration body for the United Kingdom, Isle of Man and Guernsey, appointed by the relevant Health and Safety Authority for each area. By law all gas engineers must be on the Gas Safe Register.

Gas Safe Register replaced CORGI as the gas registration body in Great Britain and Isle of Man on 1 April 2009 and Northern Ireland and Guernsey on 1 April 2010.

The main focus of the Register is on improving and maintaining gas safety to the highest standards. We make sure all gas engineers on the Register, over 120,000, are qualified to work with gas.

We work to protect the public from unsafe gas work through; a dedicated national investigations team tracking down individuals working illegally regular inspections of Gas Safe registered engineers educating consumers and raising awareness of gas safety investigating reports of unsafe gas work

Gas Safe Register is run by Capita Gas Registration and Ancillary Services Limited, a division of Capita Plc.

Please Note: This Article is 6 years old. This increases the likelihood that some or all of it's content is now outdated.


  1. Great article as just had a gas safety inspection done and next day tenant moves in and says no hot water. Then after 1 hours of checks and reading the manual had to go around the tenants property 4 hours later at night only to find the gas engineer did not switch the gas back on and therefore importantly did not test the boiler water and heating after he had signed off the work. Very poor standard and going to log a complaint with the large company and the gas safe register and get someone else to come back and retest the boiler again.

    • To be fair turning off the gas to the boiler is generally the final safety check to make sure the boiler shuts down correctly, an easy and common mistake to make !


Please enter your comment!
Please enter your name here