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New Gas Hot Water Systems & Installations by Licensed Plumbers in Lake Macquarie & Newcastle

Expert Newcastle Plumbing Services
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Hot water Gas

If you are looking for a new gas hot water and heating system installed in the Newcastle or Lake Macquarie area then you should be talking to the experts at CDL. We are fully qualified gas plumbers who have over 15 years of experience installing new gas hot water systems throughout the area. Our reputation is second to none and when it comes to gas plumbers, this is everything.

Gas hot water systems are more expensive at the onset than electric ones but they are far more fuel efficient once installed, especially bearing in mind that a gas hot water boiler can last 12 years.

With rapidly rising energy costs gas is cheaper to run than electric, but electric is more efficient whereas gas heats the water quicker. If you already had a gas hot water system then installing a new one rather than switching makes sense. If you need any advice then give us a call as we can meet your hot water needs in any way whether it be electric or solar) and will advise on what is best for you.

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Gas Hot Water Experts

CDL are not only Level 2 qualified plumbers but we also supplier of Australia’s most tried and trusted gas hot water system manufacturers:

  • Rheem
  • Rinnai
  • Aquamax
  • Vulcan
  • Dux
  • Bosch
  • Servgas
  • Wilson

Gas Hot Water Experts

CDL Plumbing and Drainage are fully licensed and experienced gas fitters that can repair and service all gas hot water and heating systems. Gas hot water systems have more moving parts and so sometimes are more prone to develop a fault or require a service that must be carried out by licensed gas fitters and engineers. In these days of rapidly rising gas prices, it’s even more paramount to keep your gas hot water system running efficiently as an inefficient one can add hundreds of dollars onto your bill so give CDL a call in Newcastle and Lake Macquarie for any gas repair or servicing needs.

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Gas Hot Water Not Working?

If your whole gas hot water system isn’t working then you’ll need a qualified gas plumber to see if it can be repaired. Depending on its age and what the cause is, we can most likely have it up and running the same day, or if we need to get specific parts then usually only a matter of days.

Gas hot water and heating systems have many more moving and complex mechanical parts that can break down or require calibration and cleaning compared to electric so they will usually require some attention during their lifespan.

Signs That Your Gas Hot Water Heater is Going Bad and Needs Repairing

  • Strange Noises - Gas hot water heaters usually make some noise, but if you have excess and loud strange noises then this is usually a sign that you need a service or repair. Bad sounds include knocking, banging, popping and rumbling.
  • Hot Water Running Out - Over time with storage tank based hot water systems they will just lose their ability to heat, so the maximum temperature will go down meaning less hot water available overall.
  • Discoloured or Rusty Water - Sediment and rust can build up inside the storage tank and this is very difficult to fix. Sediment can be drained but rust isn’t fixable. The cost of this repair work is usually outweighed by a replacement storage tank.
  • Varying Temperatures - Inconsistent temperatures is a common sign that your electric hot water system is slowly dying. If it isn’t very old it can likely be repaired or may just require a simple service, but if it’s old, again, it might be time for a new one
  • Low Water Pressure - Low or just trickling hot water from the hot taps is a sign that there is sediment in the tank causing blockages and reduced pressure. If this is from a storage tank it’s hard to fix but from tankless instantaneous systems, this can often be repaired.
  • Leaks - A leaking system will generally automatically need some servicing from a certified gas plumber. If you find water leaking anywhere near your system this is a bad sign.
  • Age - Any system over 8 years old and especially 12 or more should really be replaced. Their performance will have dropped (costing you money) and newer systems are far more energy efficient so cheaper to run. Average lifespans nowadays are 8 - 12 years but this is with regular servicing. They can last longer but any system over 8 years really should be serviced and repaired yearly.
  • Higher Gas Bills - If your gas bills have increased greatly (factoring in the rising costs of course) then there is a good chance your gas hot water heater is running very inefficiently. A repair or service can often remedy this.
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CDL Plumbing Services


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Hot Water

We work with Solar, Electric & Gas heated systems - we make system repairs, installations, replacements and offer expert general servicing.

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Plumbing maintenance will ensure your plumbing continues to operate smoothly. We've got your water pressure and dripping taps sorted.

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New home & Renovations

Pre slab drainage, external drainage, stormwater drainage, water rough-in, gas rough-in, down piping, fit off, and final sign off on renos.

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Drainage & Excavation

We can safely inspect, diagnose and service all drainage, excavation, stormwater, sewer and downpipe flooding problems.

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Why Choose CDL Plumbing & Drainage?

There are a good many reasons why people choose CDL as gas plumbers. We are full-service plumbers with a no job too big or too small mentality. We also cover industrial, commercial and residential plumbing and drainage. But most of all it’s the quality of our work and our affordability.

  • 15 Years Experience
  • High-Quality Workmanship
  • Reliable and Punctual
  • Local Expertise of Newcastle & Lake Macquarie
  • Fully Insured ($20M Public Liability)
  • Fully Qualified Level 4 Plumbers
  • Customer Friendly
  • Free No Obligation Quotes
  • Fantastic Reputation

Most of our work comes from referrals which can only happen if we are good at what we do. Our reputation is important to us and our reputation speaks for itself, so for any plumbing, gas or drainage, call CDL.

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Replacement Gas Hot Water Systems

Eventually, your whole gas hot water system may need replacing. This is usually due to age and performance. Modern units will also be much more energy efficient plus if you are sticking with the same type (gas) then a replacement or upgrade isn’t as expensive as switching.

Gas systems aren’t as cheap to install as electric, but they are more energy efficient and so pay for themselves in the long run. Their average lifespans aren’t as long as an electric system but one from a reputable brand that is well maintained can last upwards of 10 years. CDL is able to supply all leading brands and can help you to find the best system for your home or business based on your needs. As certified gas engineers, we can help you choose the perfect system for your needs as well as install it to the highest Australian standards.

We can take away the old one and usually have a new one installed in one working day (sometimes two if the installation is complex) but this is often quicker if an existing gas system has already been in place.

Gas Hot Water System Upgrades

Sometimes your existing system is working fine but just can’t cope with increased demands by a growing family, more staff or a home extension placing greater needs that outstrip the power and performance of your existing system. Most gas hot water systems are continuous flow but gas hot water systems can also utilise storage tanks too.

Upgrading your existing gas system to a more powerful one or even adding an additional electric unit, but to know what the best solution is just give CDL a call and one of their expert hot water plumbers will give help you choose the right system and give you a free no obligation quote.

Upgrade Gas Storage to Continuous Flow (Instant) Hot Water

Often, gas users with storage tanks find that there simply isn’t enough water and want to upgrade to a continuous flow unit. This is a fairly straightforward upgrade as there will be less installation work to do. The same is true for upgrading to a more powerful continuous flow gas hot water unit as well.

Signs your Existing Gas Hot Water System Needs Upgrading Or Replacing

  • Age - Any system over 7 or 8 years old and especially 10 or more may need to be replaced. Their performance will have dropped (costing you money) and newer systems are far more energy efficient so cheaper to run.
  • Loss Of High Temperatures - If your unit is struggling to reach the temperatures it once was, especially after 5 - 7 years then this may be a sign it needs replacing. Alternatively, it may just require a service or a repair so give CDL a call to find out.
  • Leaks - Gas hot water systems (continuous flow) actually have a small water tank, this can often leak over time, although repairable, depending on the severity and how many leaks there are it can be more cost-effective to replace the unit.
  • Noises - Strange or loud noises coming from your hot water system are a bad sign, whilst there should definitely be some operational noise with gas units (more than with electric because there are more moving parts), loud, irregular noises are usually a bad sign, also that the system hasn’t been properly maintained
  • Constant Repairs - Gas units have many moving and high precision parts (such as thermostat, gas control valve and temperature & pressure (T&P) valves and these parts may fail. Multiple repairs can sometimes mean that the whole system has come to its end and it's more cost-effective to replace it with a new one. This is especially true of much older, badly maintained or poor-quality units.

CDL will help you choose the perfect replacement gas hot water system based on your needs, budget and property, just give us a call to schedule a free no obligation consultation.


Do you do gas hot water repairs?

Yes, of course, you can read about that more right here

What is the most reliable hot water manufacturer?

According to reviews on performance and reliability against cost is usually (depending where you look) Rinnai or Rheem, but in our experience there is usually very little difference between the top manufacturers and it’s better to get the right type of systems for your needs than to pick purely by manufacturer

How long do gas hot water boilers last?

The current averages are now 8 - 12 years, but a good model that’s well installed and maintained can last a lot longer than that making them very good value for money

What kinds of gas hot water system are there?

Storage systems or continuous flow. Most modern homes have continuous flow boilers that heat the water on the spot and deliver it to taps or radiators. Storage systems have a tank that is heated but can lose heat over time so energy is lost.

How do I know what size of system to buy?

This is where things can get complicated with tables and terminology, but with a quick discussion with CDL and we will narrow down your choices of what type and power size you need

How long does it take to install a gas hot water system?

If we are installing to a location where there was previously a system usually a full day. If we are creating a new space for installation then up to two days. This doesn’t include heating though, which obviously takes another day or so

Do gas hot water systems need repairing?

Yes. All gas hot water systems will require regular maintenance and servicing to keep them running not only efficiently, but to keep them running reliably and reach their lifespans or beyond. Regularly maintained gas hot water and heating systems will last potentially years longer than systems that have never been repaired or serviced.

How much is a gas hot water service?

We don’t have a fixed price service fee for gas hot water systems as they vary greatly from brand to brand but a simple service on a gas heating system can start from as little as $XXXX

0477 76 2937

CDL Plumbing & Drainage are expert plumbers and gas fitters servicing Newcastle & Lake Macquarie from our Gateshead HQ. We have over 15 years of experience and specialise in all domestic and commercial plumbing, able to take on large-scale drainage projects. Fully qualified (Level 4), licensed & insured with free quotes. We have 2 teams of friendly and reliable plumbers with fully equipped vans.

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