Gas Leak Detection, Fault Finding & Appliance Servicing Auckland
Gas leak detection, appliance repairs and safety inspections by experienced Certifying Gasfitters across the wider Auckland region.
If you've noticed the smell of gas, your appliance isn't performing properly, your gas bill has increased unexpectedly, or your hot water system has stopped working, it's important to have the problem investigated by a qualified Gasfitter.
We specialise in fault finding across all types of gas installations throughout Auckland. From residential homes and commercial kitchens to central heating systems, boilers and LPG installations, we use specialist testing equipment to locate faults, confirm appliance safety and restore your system to safe operation.
Whether it's a small gas leak or a complex combustion issue, we provide professional diagnosis, repairs and Certification where required.

Complete gas safety inspections and repairs
No matter what type of gas appliance you own, we can diagnose and repair the fault.
Gas leaks should never be ignored
We use calibrated electronic gas detectors together with pressure testing equipment to accurately locate even very small gas leaks. Where necessary we isolate sections of the installation to identify exactly where the leak is occurring before repairs begin.
Signs of a possible gas leak
- Smell of gas
- Hissing sounds
- Higher than normal gas bills
- Pilot lights going out
- Appliances failing to ignite
- Headaches or nausea when appliances are operating
- Dying vegetation around underground gas pipes
- Gas detector alarms activating




Appliance Safety Inspections
Gas appliances should be serviced regularly to ensure they remain safe and efficient. A comprehensive inspection can identify issues long before they become expensive repairs.
Flue Gas Analysis
One of the most important tests we perform. Modern combustion analysers let us measure exactly how efficiently an appliance is burning gas, cleaner combustion means less gas used and significantly lower carbon monoxide.
What we measure
- Oxygen (O₂)
- Carbon dioxide (CO₂)
- Carbon monoxide (CO)
- Flue temperature
- Combustion efficiency
- Excess air
- Draft performance
Poor combustion can indicate
- Incorrect gas pressure
- Dirty burners
- Blocked heat exchangers
- Damaged injectors
- Blocked flues
- Ventilation problems
- Incorrect appliance settings
These tests allow us to accurately tune appliances for both safety and efficiency.
Stable blue flame, every time
Gas appliances should produce a stable blue flame. The warning signs below often indicate incomplete combustion and should be investigated immediately.
Correct pressure = reliable performance
Many appliance faults are caused by incorrect gas pressure rather than the appliance itself. We perform the full suite of pressure tests to isolate and confirm the cause.
Pressure tests we perform
- Installation pressure testing
- Operating pressure testing
- Standing pressure tests
- Regulator testing
- Pipe sizing assessment
- Gas meter testing
- LPG regulator checks
Common Faults We Repair
Continuous flow water heaters
- •Ignition faults
- •Temperature fluctuations
- •Error codes
- •Low hot water flow
- •Fan faults
- •Blocked heat exchangers
- •Water leaks
- •Gas valve faults
- •PCB faults
Gas hot water cylinders
- •Rheem Stellar service
- •Vulcan Freeloader replacements
- •Burner assemblies
- •Thermostats
- •Gas control valves
- •Pilot assemblies
- •Thermocouples
- •Expansion issues
- •Flue faults
Gas hobs & cookers
- •Burners not lighting
- •Uneven flames
- •Clicking igniters
- •Faulty ignition modules
- •Gas valves
- •Thermocouples
- •Flame failure devices
- •Low flame performance
Central heating boilers
- •Hydronic heating boilers
- •Radiator systems
- •Underfloor heating
- •Pumps
- •Expansion vessels
- •Pressure loss
- •Heating controls
- •Combustion faults
Commercial kitchens
- •Commercial cookers
- •Deep fryers
- •Wok burners
- •Chargrills
- •Combination ovens
- •Salamanders
- •Commercial water heaters
- •Commercial boilers
- •Commercial catering equipment
LPG & natural gas systems
- •LPG bottle installations
- •Regulators
- •Automatic changeover valves
- •Pigtails
- •First-stage regulators
- •Second-stage regulators
- •Gas meters
- •Pipework
- •Underground gas lines
We hold spares and service manuals for the major continuous flow brands.
Fault finding & servicing across Auckland










Routine servicing prevents most failures
Many appliance failures can be prevented through regular maintenance. Routine servicing improves:
- Safety
- Efficiency
- Reliability
- Appliance lifespan
- Fuel consumption
- Manufacturer performance
Verification Certificates
Following repairs, servicing or safety inspections, we can issue a Gas Verification Certificate where applicable, confirming the installation or appliance has been inspected, tested and verified as safe and compliant in accordance with the Plumbers, Gasfitters and Drainlayers Board (PGDB).
- Gas Verification Certificates
- Gas Safety Records
- Pressure Test Results
- Appliance Commissioning Documentation
- Compliance Documentation
- Service Reports
Contact us immediately if…
Diagnosis first, replacement last
Unlike many companies that simply replace appliances, we specialise in diagnosing the actual cause of the fault. Accurate fault finding saves our customers money while ensuring every gas appliance operates safely and efficiently.
Safety inspections, leak detection & fault diagnosis.
Specialist testing equipment, professional repairs and Certification, right across Auckland.
Frequently Asked Questions
How often should gas appliances be serviced?
Most residential gas appliances should be serviced every 2, 3 years, while commercial appliances often require annual servicing due to heavier use. Always follow the manufacturer's recommendations.
What is a flue gas analysis?
A flue gas analysis measures combustion gases such as oxygen, carbon dioxide and carbon monoxide. It confirms that an appliance is burning efficiently and safely and helps identify problems before they become dangerous.
Can you repair older gas appliances?
Yes. We regularly repair older gas appliances where parts are available. If replacement is a better long-term option, we'll explain why and recommend suitable alternatives.
Can you issue a Gas Verification Certificate?
Yes. Where the work meets the applicable regulatory requirements, we can carry out the necessary testing and issue a Gas Verification Certificate after the installation or repair has been verified as safe.
Need a Certifying Gasfitter today?
Free quotes across Auckland. Same-day callouts available.
