Gas pipes do not follow one standard route through every home, so meter and appliance positions cannot prove a concealed line’s exact path.
Pause drilling, cutting, demolition or excavation until the route is resolved. Start with current records and accessible endpoints, then use an appropriately licensed gasfitter or skilled locator.
Which part of the gas system are you locating?
Reticulated natural gas has a network service leading towards the meter. The property gas system continues from the meter to appliances.
An LPG installation instead begins at its cylinders or tank. In either system, downstream pipework may take a property-specific path before reaching a cooktop, heater or hot-water unit.
Network assets and private gas pipework have different owners, records and locating processes. This boundary matters because one plan rarely describes both systems completely.
Where can private gas pipes run?
Depending on the building and installation, pipework may pass under floors, inside walls, through roof spaces, underground or along an external surface. It may change direction between visible points.
Extensions, appliance changes and meter relocations can create indirect or partly undocumented routes. General guidance on pipes in walls and floors cannot clear a specific area for work.
Apartment systems add shared supply, access and approval issues. Check how gas works in an apartment before assuming a visible connection belongs only to one unit.
How should you check the route?
- Define the work area: Mark the exact wall, floor, ceiling or ground that will be drilled, cut, opened or excavated.
- Gather records: Find the gas compliance certificate, building plans, renovation records and previous trade reports available for the property.
- Observe accessible points: Note the meter or LPG source, exposed pipework and appliance connections without opening cavities or disturbing fittings.
- Check network information: Lodge a current Before You Dig Australia enquiry before excavation and read every affected asset owner's response.
- Resolve the gaps: Give the plans and observations to an appropriately licensed gasfitter or skilled locator before the surface is disturbed.
A compliance certificate can help identify completed gas work, but public Queensland guidance does not promise a complete concealed-route drawing. Old records may also pre-date later alterations.
What can Before You Dig Australia confirm?
Before You Dig Australia provides information from participating underground asset owners. Its plans indicate an asset's presence rather than proving exact depth or alignment.
BYDA also says private domestic services do not typically appear on its plans. A clear-looking response therefore cannot rule out private gas pipework beyond the meter.
Use BYDA within the excavation process, not as a wall-scanning tool. Contact the asset owner and arrange skilled locating where a response is missing, unclear or inconsistent with the site.
Can a scanner prove an area is clear?
No single consumer scanner, stud finder, magnet, thermal camera or phone application can prove every gas line is absent. Pipe material, surface construction, depth and access affect what methods can detect.
Do not make exploratory holes or loosen a fitting to trace the route. Locating evidence must suit the site, and any gas testing or alteration must stay within the relevant licence scope.
Business Queensland defines gas work to include installing, altering, repairing, servicing, testing and certifying a gas system. The licence or authorisation must cover the work performed.
What if you smell gas or strike a line?
Stop work immediately if gas is smelt or a suspected line is struck, pierced, cut or exposed. Warn others and move away from the area.
Do not use flames, powered tools, electrical switches or a phone near suspected escaping gas. Queensland guidance requires evacuation and a Triple Zero (000) call for an uncontrolled leak, fire or explosion.
Contact the relevant gas distributor or supplier from safety. The guide to gas-leak responsibility at the meter and property explains the next ownership check.
What is the safest next step?
Treat visible endpoints and plans as clues, not clearance. Confirm the unresolved route before any penetration, excavation or demolition begins.
If damage or deterioration is suspected, read when a gas line needs repair or replacement. Do not choose a repair method until the route and condition are established.
For private gas-system assessment and any required testing or authorised gas work, contact the gas fitting team before disturbing the surface.