Back Common Warning Signs Not to Ignore

Date: 27 February 2025

What's the Cause of Your Plumbing or gas Issue?

Could you be overlooking the classic warning signs that you have an issue with your plumbing or gas? Don't ignore what might be an early warning and get the issue repaired or replaced before it totally fails, and costs you more. 

Banging pipes? Hissing or whistling sounds? You might be surprised by the warning signs indicating you have a problem. We outline what the common signs are if you have a gas leak, water leak, water pressure issue or hot water tempering or hot water cylinder problem.

What are the Warning Signs of a Gas Leak?

Gas Leak Warning Signs


Gas Appliances Include:

Gas hot water

- Gas hot water cylinders
- Continuous flow water heaters
- Instant boiling /chilled water taps
- Boilers
- Solar hot water systems
- Pool / spa heating
- Boilers

Gas cooking

- Gas hobs / stovetops
- Gas ovens
- BBQ’s
- Outdoor kitchens

Gas heating

- Ducted central heating
- Space heaters
- Gas fires
- Underfloor heating

LPG bottles

Signs of a Gas Leak


Gas Leak
Warning Signs 

Call urgently if you smell gas!

- Sulphur or rotten egg smell

Signs you have a leak

- Flame burning yellow, not blue*
- Higher gas bills
- Hissing or whistling sound
- Air bubbles in standing water

- Air contamination / gas poisoning

- Dizzy, fatigue, headache, nausea
- Plants dying - lack of oxygen

We provide reporting, servicing, testing and compliance certification. Book Now >

Regular gas servicing is imperative for health & safety, ensuring your gas appliance is running efficiently may also help prevent issues occurring. It is also required to meet warranty conditions and insurance purposes. 

Get in Touch Now

signs your hot water needs repairing or replacing

Hot Water Cylinder Warning Signs 

Hot Water Cylinder Warning Signs

Is your hot water system adequate?

Signs of HWC Issues:

- Hot water running out
- Variable pressure
- High water bills
- Leaks & Noises

Gas vs Electric Hot Water can vary across key areas:

- Efficiency / Cost
- Flow rates / Speed

Gas vs electric hot water >

We offer expert advice on hot water systems, delivering quality solutions within budget. We recommend energy saving systems to suit demands and budget. Enquire Now >

Read When to Upgrade a Hot Water System.

For Commercial Hot Water Systems, Residential Hot Water Cylinders and Gas Hot Water

Water Tempering Warning Signs 

Water Tempering Warning Signs

Is your water temperature correct and consistent?

Water tempering issues are often caused by a faulty valve.

Signs of Water Tempering Issues:

- Temperature variation
- Fluctuation of hot and cold water
- Scalding hot water
- No hot water
- Low water pressure
- Dripping from hot outlet

We can help install, replace or service water tempering devices. Book in Now >

Regular servicing of tempering devices can help prevent the build up of material causing it to run inefficiently. Read more about:

Commercial Water Tempering >
Residential Water Tempering 

Read about the new Hot Water Temperature Regulations as updated in the NZ Building Code. 

Get in Touch Now

signs you have a water leak or water pressure issue

Water Pressure Warning Signs

Water Pressure Warning Signs

Signs you have issues with water pressure too high or too low.

Warning Pressure Too High:

- Banging pipes
- Water leaks
- Dripping faucets
- High water bills

Warning Pressure Too Low:

- Weak flow
- Delayed hot water
- Inconsistent temp
- Appliance issues

Do you need your water pressure adjusted?

Need water pressure fixed?  Book Now >

We help with both: 
Commercial Water Pressure > 
Residential Water Pressure > 

Read more on our water pressure blog >

Water Leak Warning Signs 

Water Leak Warning Signs

Get onto a water leaks quickly, before it costs you too much!

General Water Leak

- Evidence of water damage
- Mould or mildew on walls
- Discoloured water
- Bad smell
- High water bills

Mains Water Leak 

- Sudden increase in water bill
- Pools of water or puddle coming up from the ground
- Hissing or bubbling sound
- Cracks in concrete

Don't let a minor leak become a major!

Topline can help - Contact Us Now >

Read more about:

Water Leak Repair >
Mains Water Leaks >

If any of those warning signs sound familiar, get in touch - we can help. Give us a call today! Phone 0800 111 818  or enquire online now >

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Call 0800 111 818 for all enquiries.

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call: +64 96306 353

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