How Much Does It Cost to Detect and Fix a Gas Leak in Australia (2026)?
Quick Answer
Gas leak detection and repair: $200–$800. Detection only (pressure test + soap test): $150–$300. Simple joint/fitting repair: $200–$400. Section of pipe replacement: $400–$1,200. Emergency call-out adds $100–$200.
Gas Leak Repair Costs
| Service | Cost | Time |
|---|---|---|
| Gas leak detection (pressure test) | $150–$300 | 30–60 min |
| Tighten/reseal fitting | $200–$350 | 30–45 min |
| Replace gas valve/fitting | $250–$500 | 45–90 min |
| Replace section of gas pipe | $400–$1,200 | 1–3 hours |
| Full system pressure test + cert | $200–$400 | 30–60 min |
Gas Leak Detection Process
- Step 1: Isolate gas supply at the meter
- Step 2: Pressure test the system (typically 5 kPa for 3 minutes per AS/NZS 5601.1)
- Step 3: If pressure drops, use leak detection fluid (soapy water) on all joints and fittings
- Step 4: For hard-to-find leaks, use an electronic gas detector
- Step 5: Repair, re-test, and issue compliance certificate
Emergency Gas Leaks
If a customer reports a strong gas smell, advise them to: turn off gas at the meter, open windows, don't use electrical switches, evacuate, and call you or the gas emergency line. Charge emergency rates — this is life-safety work.
Compliance
All gas leak repairs must comply with AS/NZS 5601.1 and require a gas compliance certificate after repair. A successful pressure test (no drop over 3 minutes) must be documented.
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