A father and son were prosecuted for carrying out illegal gas work on a domestic property. No qualifications. No registration. No idea what they were leaving behind in a family's home.
That case is not unusual. It is, in fact, depressingly common. What makes it worth examining is what the prosecution revealed about the timeline of risk. The work was done. The family moved on. The danger stayed.
What "Illegal Gas Work" Actually Means
In Ireland, anyone working on gas installations must be registered with Registered Gas Installers of Ireland (RGII). That registration exists because gas work done wrong does not announce itself. There is no warning smell from a slow carbon monoxide leak. A flue installed at the wrong angle does not rattle. A gas valve seated incorrectly looks exactly like one seated correctly, unless you know what you are looking at.
Illegal gas work means an unregistered person carried out installation, repair, or commissioning of a gas appliance or pipework. It does not matter if they have twenty years of experience in plumbing. Without RGII registration and the specific competency assessments that go with it, they are not qualified to touch a boiler. That is not a technicality. It is the line between work that has been independently verified and work that has not.
The Father and Son Case: What It Tells Us
The prosecution centred on gas work carried out on a residential property. The pair were not registered. The work was not inspected. The family living in the house had no way of knowing any of this. They had hired tradespeople, work was done, a bill was paid.
The hazard that prosecution uncovered had been sitting in that home, unseen. That gap between work completed and danger discovered is the part that rarely makes headlines. Fines and convictions get reported. The years of exposure that precede them do not.
Carbon monoxide poisoning from faulty gas appliances kills people in their sleep. It does not wait for the paperwork to catch up.
Why Homeowners Are the Last Line of Defence
Regulators cannot inspect every home. Gas Networks Ireland can flag unsafe installations when they encounter them, but they are not visiting every property annually. The burden falls on homeowners to ask the right questions before any work starts.
There are three questions every homeowner should ask before a tradesperson touches a boiler or gas fitting.
Are you RGII registered? Ask for the registration number. Check it on the RGII website. This takes two minutes and costs nothing.
Will you issue a certificate of conformity? Every piece of gas work completed by a registered installer must come with a Completion Certificate. No certificate means no proof the work meets the standard. No proof means you cannot verify it when you sell the house, when an insurer asks, or when something goes wrong.
Can I see your public liability insurance? An unregistered operative is almost certainly uninsured for gas work specifically. If your house burns down or someone is hospitalised, you are not just dealing with a tragedy. You are dealing with a legal and financial situation with no clear route to compensation.
If any of those questions produces hesitation, take that as your answer.
The Hidden Cost Nobody Quotes
People focus on the fine. The father and son were prosecuted. That matters. But the homeowner's cost runs longer and quieter.
A property with illegal gas work on record is a problem at the point of sale. Solicitors will flag it. Buyers will walk. If they do not walk, they will renegotiate. An undisclosed illegal installation that causes injury after a sale can expose the seller to civil liability. The cost of fixing the original work properly, paying for a retrospective inspection, and dealing with any remedial work ordered by RGII inspectors will always exceed the cost of hiring a registered installer in the first place.
Falsified certificates and skipped verification checks follow the same pattern across every regulated trade. The shortcut is cheap once. The consequences compound for years.
Then there is the insurance angle. Most home insurance policies have clauses about work carried out by unqualified tradespeople. If a claim arises from an installation that was never certified, the insurer will investigate. They will find what they find.
What to Do If You Suspect Illegal Work Has Already Been Done
If you bought a house and cannot locate a Completion Certificate for boiler installation or any gas appliance work, treat that as a gap, not a minor admin issue.
Contact RGII and arrange an inspection. A registered inspector will assess the installation and issue a certificate if the work meets the standard, or identify what needs to be remediated. Gas Networks Ireland also has a 24-hour emergency line if you have any concern about the safety of an appliance right now: 1800 20 50 50.
Do not light that appliance again until you know.
Unqualified gas engineers are still working across Ireland. The prosecution of one father and son pair does not change that. Awareness does.
The Registration Check Is the Job
Hiring a tradesperson for gas work is not a moment to go on gut instinct or a recommendation from a neighbour who had a good experience. Gut instinct does not inspect a flue. A neighbour's recommendation does not check a gas valve.
The RGII register is public and searchable. It takes less time than reading this article. The fine for illegal gas work sits at up to €5,000 per offence at the lower end, and criminal prosecution at the higher end. The cost to a family who spent two winters sleeping above a faulty installation is not calculable.
Hire registered. Get the certificate. Keep it with the deeds.
