Gas work is not plumbing: the legal line
Anyone can legally change a tap or fit a radiator. The moment the job touches gas, a boiler, a hob, a gas fire, the flue, the law draws a hard line: only an engineer on the Gas Safe Register may legally do the work. Gas Safe replaced CORGI as the official register, and working on gas without registration is a criminal offence, not a paperwork technicality.
So the first check is non-negotiable and takes under a minute: look the business up on the register before anyone visits. A firm that is cagey about its registration has answered your question already.
Check the back of the ID card
Every registered engineer carries a Gas Safe ID card, and the back of the card is the part most people never read. It lists the specific categories of gas work the engineer is qualified to do, because being registered for boilers does not automatically mean being registered for fires or cookers. The card also shows the photo, the licence number and the expiry date, since registration renews annually.
Asking to see the card is normal, and a genuine engineer hands it over without a flicker. Lloyd Bargery, who runs LMB, is Gas Safe registered, City & Guilds qualified and a Baxi Approved Installer, and he will show you the card on the doorstep like anyone legitimate should.
The paper trail that protects you
Before the job: an itemised fixed quote in writing, so the price is agreed before work starts and extras cannot materialise on the day. After the job, the paperwork depends on the work. A boiler installation should end with your Gas Safe certification, the Building Regulations notification and a registered manufacturer warranty. A landlord CP12 should be in your hands within the legal timescales. A service should be recorded, because manufacturer warranties depend on that record.
An engineer who is vague about certificates before the work will be unreachable after it. The paperwork is not bureaucracy, it is your protection, and with gas it is also the law working as designed.
"Best gas engineer in Bridgend" is a claim nobody can prove
Search results are full of firms claiming the title, and none of them can substantiate it, because "best" is not a checkable fact. What is checkable: registration for the specific work, insurance, a written fixed price, and a public review record that holds up under scrutiny. The fake-review patterns are the same ones covered in the plumber-hiring guide: bursts of generic five-star reviews from accounts with no history, against the real thing, which builds steadily and mentions specifics.
So judge LMB by the checkable record. 197 public Google reviews, rated 5.0, not one below five stars, naming the engineer and the jobs. Oliver, March 2026: "Hired Lloyd to carry out a boiler service and outdoor tap replacement. Very punctual, polite. Even giving our dog buddy a fuss. No mess or delays." Leigh, March 2026: "Thank you Lloyd for helping, advising and completing work on a problematic boiler. All work was done as quickly as possible." Read them yourself, then run Lloyd through the same checks as anyone else: the register, the card, the written quote. That is how he would tell you to choose, because it is how he would choose.
