Gas Leak Detection Cardiff
Gas leak detection in Cardiff means a licensed gas fitter traces the escape with proper detectors, repairs the faulty section and pressure-tests the line before the supply goes back on. You get a fixed price first, and we are available 24/7 if the smell arrives after hours. It sits under our gas fitting work, run by your plumber in Cardiff.
Licensed plumbers and gas fitters · NSW Lic. 359278C
Last updated September 2026
How Do You Know Gas Is Leaking?
Gas leaves clues, and any one of them is worth a phone call:
- A rotten egg or sulphur smell near the meter, an appliance or along a pipe run
- A hissing sound close to a connection, regulator or buried line
- A neat strip of dying lawn or garden plants over a buried pipe
- A gas bill that keeps climbing while your usage stays the same
- Feeling headachy or light-headed indoors with a gas heater running
Do not wait to see whether a smell clears on its own. A connection that weeps slowly today can let go properly later, and gas never fixes itself.
First Steps When You Smell Gas
People out first, then the phone calls. If it is safe on your way past, open doors and windows, but never flip a light switch, strike a match or touch anything electrical on the way out.
From outside, ring the gas network's emergency line to report the leak, then call us on (02) 4063 3469. We carry gas detectors and can trace, repair and certify the line once it is safe to work on.
How We Find and Fix the Leak
Finding an escape is a process, and you see each step of it:
- 01
Trace the leak
A gas detector sweeps the line, fittings and appliance connections until the escape is pinpointed.
- 02
Isolate and repair
The supply is shut off at the meter, the worn section is replaced or resealed, and anything tired nearby gets flagged before it fails.
- 03
Retest and certify
The line is pressure-tested, every joint is leak-checked, and the supply returns only once the run holds.
If the leak sits in a section that is past saving, replacing that length is quoted on the spot. New appliances are a separate job under gas appliance installation.
What Moves the Price of a Repair?
We provide up-front, honest quotes that will always match the final price, should you decide to go ahead.
It costs nothing to get us out to your door (excluding after-hours).
That means the number you sign off is the number on the invoice, whatever the repair turns out to involve. Four things usually drive it:
- Where the leak sits, since a buried run takes longer to trace than a connection behind an appliance
- The state of the surrounding pipework, because older fittings sometimes need replacing alongside the fault
- Access, particularly under the floor of an older cottage versus a modern slab layout
- The parts the repair needs, from a simple connection to a section of new line
Gas Lines in Cardiff's Older Homes
Old connections on established streets
Winter shows up the weak joints
When We're Not the Right Call
A leak on the street side of the gas meter is repaired by the gas distributor, so you report it on their emergency line and we check your side once they are done. An appliance that fails because of its wiring or power supply needs an electrician.
"We had an urgent gas problem that required immediate attention at our home…on a Friday afternoon. … Identified the issue, fixed and tested" Lee
Gas Leak Questions, Answered
Is a gas leak dangerous to leave overnight?
Yes. A smell of gas is urgent at any hour. Move everyone out, touch nothing electrical, report it to the gas network's emergency line and then ring us.
Can you check an older gas line before winter?
Yes. A pre-winter leak test picks up tired connections before the first cold night puts the heater under load, which is when old fittings are most likely to show a fault.
Do you repair leaks in weatherboard houses with old fittings?
Yes. Much of the older housing stock around here still runs original gas pipework, and we upgrade or replace worn sections as part of the repair, with the whole job priced before we start.
How do I get a gas leak repair booked?
Ring (02) 4063 3469 or send the form. Tell us what you can smell and where, and we bring the detector and repair gear, name a fixed figure before starting and retest the line before we leave.
Need a plumber? Call or send the form
Call (02) 4063 3469 or send the form below. Available 24/7, you see a fixed figure ahead of any work, and every job carries our 365-day warranty on all work.
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