Tuffnell Plumbing Drainage & Gas provides fast, expert repairs, servicing, and replacements for gas hot water systems—backed by a large team of certified plumbers and quick turnaround times. We sort issues properly and get your hot water running again without delays.
Gas hot water systems offer fast heat-up times and lower running costs—but when faults occur, they can impact comfort, increase gas use, or create safety concerns. You might notice fluctuating water temperatures, rising gas bills, or complete system shutdowns. These problems are often linked to blocked burners, ignition faults, or worn-out valves.
In homes and commercial properties, a failed gas water heater can mean no hot showers, disrupted cleaning routines, or health and safety risks. Left unchecked, small issues can lead to dangerous gas leaks or carbon monoxide build-up.
Tuffnell Plumbing Drainage & Gas repairs and installs all types of gas hot water systems, including continuous flow, storage units, mains gas, and LPG. Our certified plumbers carry out thorough checks and safe repairs using trusted parts. Here’s what’s included in a typical service:
Need urgent gas hot water repairs? Contact Tuffnell Plumbing Drainage & Gas for fast, licensed service across the Nelson and Tasman.
Gas hot water problems aren’t always obvious at first, but they can quickly affect your comfort, daily routines, and safety. Small issues like fluctuating temperatures or unusual pilot light behavior can point to bigger faults in the system. Knowing the early warning signs helps you avoid breakdowns and costly repairs.
Inconsistent Water Temperature
If your water goes hot and cold while showering or washing, your gas hot water unit may be struggling to maintain stable output. This can result from worn valves, thermostat issues, or scale build-up in older systems. In continuous flow systems, fluctuating water flow or gas supply can also trigger temperature swings.
Pilot Light Keeps Going Out
For systems with a pilot flame, frequent shutdowns may point to a blocked thermocouple, dirty burner, or gas supply issue. In some cases, it’s a sign the unit has reached the end of its service life. If your system uses electronic ignition instead, error codes may show on the control panel—these should be checked by a licensed gasfitter.
High Gas Bills Without Extra Use
A sudden increase in gas usage without a change in habits often suggests your unit is running inefficiently. Common causes include heat loss from an ageing cylinder, a malfunctioning thermostat, or a constantly re-firing burner. Over time, inefficiency adds up in running costs.
No Hot Water or Delayed Heating
If you’re waiting too long for hot water—or not getting any at all—the burner may not be igniting, or the system may have a blockage. In rural setups using LPG bottles, it could also point to supply or regulator issues. Either way, a full check is needed to find and fix the fault quickly.
If you’re seeing any of these issues, don’t wait for it to get worse. Tuffnell Plumbing Drainage & Gas provides fast, licensed gas repairs to keep your system safe and running right.
Gas hot water faults can quickly become dangerous or costly if left alone. Fixing the problem early helps keep your system safe, efficient, and reliable. At Tuffnell Plumbing Drainage & Gas, we carry out professional repairs and servicing to ensure everything is working as it should.
Gas hot water issues are best dealt with early—before small faults turn into bigger, more expensive problems. From restoring efficiency to preventing safety risks, timely repairs keep your system working safely and reliably. At Tuffnell Plumbing Drainage & Gas, we carry out licensed repairs and servicing to get your hot water back on quickly and properly—no delays, no shortcuts.
Homes, rentals, and businesses rely on gas hot water for consistent heating and lower energy costs. But without regular servicing, these systems can develop faults that reduce efficiency or pose safety risks. Common issues include ignition failure, worn sensors, blocked burners, or leaks in LPG and mains setups. These problems can impact performance and safety if not addressed early.
Tuffnell Plumbing Drainage & Gas provides licensed gas hot water system servicing, repairs, and replacements for all major brands. Our experienced team is available across a wide range of areas—see the full list of locations we service below.
At Tuffnell Plumbing Drainage & Gas, we follow a clear, proven process to get your gas hot water system sorted quickly and safely. Whether it’s a simple repair or a full system change, here’s how we handle it:
We’re trusted by homeowners, farmers, and commercial clients across Nelson and Tasman for safe, reliable gas hot water repairs. When your system plays up, you need qualified gasfitters who turn up on time, get it sorted properly, and don’t cut corners.
If your gas hot water system isn’t heating properly, keeps cutting out, or takes too long to start, it’s time to get it looked at. Tuffnell Plumbing Drainage & Gas will inspect the system, find the fault, and get your hot water running the way it should—quickly, safely, and without the guesswork.
If your gas hot water unit is under 10 years old and the issue is minor—like a faulty valve or blocked burner— gas appliance repair is usually the better option. But if the system is older, breaking down often, or no longer heating efficiently, replacement can save you more in the long run and help reduce your energy bills.
New continuous flow systems offer an endless supply of hot water while using less gas. At Tuffnell Plumbing Drainage & Gas, we assess your setup and recommend the best option for saving money and keeping your hot water running reliably.
Fixing a gas hot water system in New Zealand usually costs between $150 and $300, depending on the fault and parts needed. Minor repairs like replacing a valve or fixing ignition issues are on the lower end of the range.
The system in your house may be designed differently, so costs can vary based on access, age, and setup. At Tuffnell Plumbing Drainage & Gas, we make sure your water heating is working properly and priced fairly, so your system is repaired right the first time.
Yes, we repair continuous flow gas water heaters, including all major brands. These systems are built to deliver endless hot water, but they can still fail due to wear, blockages, or sensor faults. If your gas water heater isn’t keeping up with demand, it likely needs servicing or part replacement. At Tuffnell Plumbing Drainage & Gas, we get it sorted quickly so your hot water stays reliable and efficient.
If you smell gas near your hot water unit, turn off the gas supply immediately and avoid using any electrical switches or open flames nearby. Open doors and windows to ventilate the area. Do not try to fix the issue yourself—it could be dangerous and may relate to a faulty connection or past installation. Call Tuffnell Plumbing Drainage & Gas right away; our licensed gasfitters will inspect the gas water heater, find the leak, and make it safe again.
If the pilot light is on but there’s no hot water, the burner may not be igniting to heat water properly. This could be caused by a faulty thermostat, blocked burner, or gas supply issue within the unit. It means the system is partially working but not heating water as it should. At Tuffnell Plumbing Drainage & Gas, we’ll inspect the gas water heater, find the fault, and get it heating water reliably again.
Providing trusted plumbing, drainage, and gasfitting solutions across the Nelson and Tasman regions for over 110 years.
Our team of licensed professionals is committed to fast, reliable service backed by industry expertise and local knowledge. Whether you need emergency plumbing, hot water repairs, or expert drainage solutions, we’re here to help — whenever you need us.
