Ducted Gas Heating Replacement

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Get Ready for Winter
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Gas Central Heater
Installation

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gas heater supply and installation*

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System

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Air Conditioning
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Reverse Cycle Electric AC Heating

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Sydney’s Gas Heating
Replacement Experts

Central gas heating is a super-efficient way to heat your Sydney home. However, old and worn-out heating systems could be adding hundreds of dollars to your energy bills each year. 

If your ducted gas heater has been installed in your home for more than 15 years, it is time to consider a replacement! Replacing or upgrading your ducted gas heater will ensure it’s safe and efficient, keeping running costs down.  

When it comes to upgrading your ducted gas heater, the Alliance Climate Control team is ready to help. Our experienced technicians will inspect your current heating system to find out if it’s more cost-effective to repair or replace. 

With Alliance Climate Control, you’ll benefit from: 

 Wondering how much you could save by replacing your gas heating this year? Book your obligation-Upfront Quote with Alliance Climate Control today. 

Why Choose Us?

Reliability

Air Conditioning service that is dependable, consistent, and responsive every time

5 Star Rated

Over 10,000 happy customers and positive reviews

Relationship

Alliance cares about our customers and build long-term relations

Locally Owned

Family owned and operated business

Reputation

Trustworthy, accountable & quality workmanship

Schedule an appointment with
one of our specialists today.

Be quick, get $1200 cash Back with a NEW Natural Gas heater installation*

For a limited time get a cash back when you replace or install a new gas heating appliance

Alliance, cash back on
Gas Central Heating

Up to

$700 Off

When you replace your old
heater or install a new central gas heater*

*Offer to be presented at point of booking or sale.

Jemena, get $500 Cash back on your Natural Gas

Up to

$500 Off

Purchase and install your new gas appliance between 1 March 2023 and 31 May 2023, with claims made by 12 June 2023

*Offer to be presented at point of booking or sale.

To claim your Natural Gas $500 Cash Back, you will need to:

For the Cash Back application, we will need to see a copy of the following:

How Long Does a Gas
Ducted Heater Last?

The lifespan of your ducted gas heater depends on how well you maintain and service it. A ducted gas heating system can last anywhere between 10 and 20 years, with the average life expectancy being 15 years. 

There are three key factors that will impact the lifespan of your ducted gas heater:

Quality – Ducted gas heating systems across the market will vary in quality. Opting for a lower-end heating unit may reduce upfront installation costs, but cheaper systems will need replacing sooner. 

Model – The type and model of ducted gas system you choose will impact its lifespan. An undersized heating unit will have to work harder to heat your home efficiently, meaning it will wear out more quickly.  

Maintenance – Proper maintenance is key to the longevity of your gas ducted heater. Annual gas heating servicing and proactive maintenance gives it the best chance at a long lifespan. 

It’s also important to have any issues with your heating system inspected and repaired as quickly as possible to avoid deterioration. Most parts of a ducted gas system can be repaired or replaced easily, which can help prolong the system’s lifespan. 

Depending on your heating unit’s condition, though, it can be more cost-effective to replace the system altogether. The latest gas heating units on the market are far more energy-efficient than older models – meaning the energy savings can quickly balance out the cost of a replacement. 

Wondering if it’s time to replace your ducted system? Give Alliance Climate Control a call to book your assessment and quote. 

Schedule an appointment with
one of our specialists today.

Why Replace My
Ducted Gas Heater?

If your old gas heater is starting to struggle, you may be considering the benefits of replacing it. Up-to-date heating units from Brivis, Braemar and Lennox offer superior performance and energy-efficiency. 

 

Some of the great reasons to replace your gas heating system include:

Modern Efficiency Rating

Old gas heating units have a lower efficiency rating compared to newer models. By continuing to run an old heater, you’ll be missing out on the energy savings up-to-date heating systems offer.

Avoid Repair Costs

If your heating unit is more than 10 years old, key components will be wearing out - and even if parts don’t need replacing yet, they’ll inevitably need fixing over the next 5 to 10 years. It can be far more cost-effective to install a new energy-efficient heater than to keep an old one ticking along.

More Effective & Reliable

Up-to-date gas heating units offer much greater performance, heating your home more quickly and evenly. Especially if your existing unit isn’t sized correctly, you’ll see a drastic difference when you replace it with a modern gas heater.

Environmentally Friendly

In addition to using up to 30% less energy, a modern 6 Star gas heating system emits up to 75% fewer greenhouse gases than electric heating. Upgrading to a new gas heating unit remains far better for the environment than electric heaters.

Safe For Your Family

A more serious concern is whether an old heater is affecting you or your family's health. Carbon monoxide leaks can occur as your heating unit deteriorates, and older ducted heating can also impact indoor air quality. Symptoms of carbon monoxide poisoning include headaches, dizziness, shortness of breath or nausea. In some cases, CO leaks can even be deadly. Many of our Sydney customers choose to replace older heating systems to ensure the family home is a safe environment.

Silent operation

Ducted gas heating systems are some of the quietest on the market. You won’t be disturbed by any noise coming from the system, even if it’s running all day. It’s a comfortable and discreet way to keep your home heated.

If your gas heating system is wearing out, it may pose a safety hazard. Replacing your old gas heating unit with a new, energy-efficient model ensures it’s both safe and cost-effective to heat your home. 

For an obligation-free replacement quote, book an appointment with Alliance Climate Control today. 

Schedule an appointment with
one of our specialists today.

How Do I Know If My
Gas Heating System Needs Replacing?

There comes a time when your run-down heater is beyond repair, or it isn’t cost-effective to fix. But how do you know if it’s time for a replacement? Signs your ducted gas heating may need replacement include: 
  • Repairs are too frequent or too expensive 
  • Energy bills are increasing 
  • Visible damage or wear 
  • Heats slowly or unevenly 
  • Strange noises coming from heater 
  • Gas or carbon monoxide leaks 
  • Temperature needs adjusting constantly
If your heater is experiencing one or more of these symptoms, book an assessment with Alliance Climate Control. Our expert technicians across Sydney can advise whether your system can be repaired, or if it’s better value to replace the heating unit. When your heater is requiring regular repairs, or heating performance has gone downhill, it may be time to bite the bullet and replace your gas heating unit. Upgrading to a new model ensures you’ll be heating your home cheaply, efficiently and safely this winter.  If it’s time to replace your ducted gas heater, the experts at Alliance Climate Control can help. Call us today to book your assessment and quote. 

Why Our Community
Trusts Alliance?

Licensed, insured techs for your protection​

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Inhouse trained techs, we don't use contractor​

Upfront & honest
installation quotes

After care, Lifetime workmanship warranty*

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We go the extra mile & focus
on the small details

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100% satisfaction, or we'll be back to make it right!

Schedule an appointment with
one of our specialists today.

How Much Does It Cost
to Replace a Ducted Gas Heater?

The replacement price of a ducted gas heating unit varies depending on several factors. Luckily, a replacement or upgrade is significantly cheaper than installing a brand new heating system from scratch. 

If you are just replacing a broken gas heating unit, you should already have the ducting, vents and controls in place which will cut back a lot of costs. However, if there are internal parts that are outdated or inefficient, it may be better to replace these. 

Damaged ductwork can undermine the performance of your heating system and increase running costs. However, the lifespan of ductwork is often longer than the gas heater itself, and they can also be patched or repaired. 

The model, manufacturer, and kilowatt output of your new and existing ducted heating system will be the major factor when it comes to cost. 

However, all homes are different, and you’ll want to ensure the heating unit is appropriately sized. This means the best way to determine the cost of replacing your gas heating is to get a personalised quote from a Sydney gas heating professional. 

Our expert team can calculate exactly which gas heating unit is best for your property’s layout. To book your obligation-Upfront Quote, call Alliance Climate Control today.

We Are cm3
Qualified Contractors

Cm3 certification is a Work Health & Safety (WHS) prequalification system. Being Cm3 certified, means our business has demonstrated the highest-level health and safety capabilities as well as having the right insurances and licences to protect our customers. Using a Cm3 certified technician is crucial to ensuring you and your project are in safe and protected hands.

How Much Could You Save By Upgrading
Your Gas Heater?

Ducted gas heating systems are much more efficient, and they’re designed to comply with modern environmental standards. A 6-star rated Brivis gas heater saves Aussie households an average of $567 a year, when compared to old 3-star models. 

If you’re upgrading your gas heater, a higher star rating means it’s more energy efficient – meaning you’ll save more on your annual running costs. While upgrading to a newer model does come at an upfront cost, this is quickly offset by reduced running costs within years.  

The more energy-efficient your new heating unit is, the more savings you’ll keep in your pocket this winter. 

Brivis research shows that on average:

  • A 4 star system uses 13% less energy – annual savings of $236 
  • A 5 star system uses 22% less energy – annual savings of $420 
  • A 6 star system uses 30% less energy – annual savings of $567
     

*compared to a 3-star gas heating unit. 

Don’t pay more than you need to on this year’s energy bills – instead, get a quote on replacing your old gas heating system today. 

Book your appointment with Alliance Climate Control for a personalised quote.

Why Choose Alliance For
Gas Ducted Heater Replacement?

Choosing the Right Ducted Air

When it’s time to replace your home heating system, it’s critical to choose the right contractor. Gas heating systems are complex, and poor installation is one of the leading causes of premature wear and tear. 

 

Poorly installed gas heaters can cause house fires or emit harmful pollutants into your home. The consequences of dodgy installation jobs can even include deadly carbon monoxide leaks. 

 

For complete peace of mind, have your gas heating system replaced by Sydney’s trusted technicians: Alliance Climate Control. With thousands of five-star reviews behind us, you know you’ll be receiving the highest standard of service every time you call us. 

 

Our expert technicians take the time to recommend the best replacement gas heater for your home. You can count on Alliance Climate Control for transparent, accurate quoting, keeping you in the loop about your repair and replacement options.

 

With a 5-year aftercare service and 100% satisfaction guarantee, there’s no time like the present to upgrade your home heating. 

 

Book your appointment with Alliance Climate Control now. 

Schedule an appointment with
one of our specialists today.

Get Ready for Winter
With Our Exclusive Online Promotions

Gas Central Heater
Installation

Up to

$500 Off

With any new central
gas heater supply and installation*

Limited time only, offer ends .
*Offer to be presented at point of booking or sale. Not to be combined with any other offer.

Trade in your old
System

Up to

$700 Off

With any Air Con or Gas heater replacement installation trade in*

Limited time only, offer ends .
*Offer to be presented at point of booking or sale. Not to be combined with any other offer.

Air Conditioning
Installation

Reverse Cycle Electric AC Heating

Up to

$500 Off

With any new Air conditioning
supply and installation*

Limited time only, offer ends .
*Offer to be presented at point of booking or sale. Not to be combined with any other offer.

Schedule an appointment with
one of our specialists today.

What Our Community
Is Saying About Alliance

Alliance Climate Control - Heating, Cooling, Electrical
4.9
Based on 1839 reviews
Will M.
Will M.
Awesome Job. Great work by BJ, Cristam, Peter, Blade, JJ, Liam, Will and all the team.
Omer E.
Omer E.
Impressed from first minute to last. Not the cheapest but they do not claim to be.
Ian B.
Ian B.
We were delighted with our experience with the Alliance team of Tommy, Nick and Luan. They went about the job professionally, expertly and with no fuss. They left the job site as they found it, perfectly clean. What a wonderful example of hard working young men and a credit to your organisation. All contacts with these young men were courteous and polite. Well done Alliance.
kaye P.
kaye P.
I'm very pleased with the service. 100% we'll be returning clients. Thanks Kody for being very professional. Appreciate the recommendations.
Ian H.
Ian H.
Kevin, Dragan and Peter were excrr were excellent All arrived on time and were accomodating in meeting my requests re certain aspects of the installation I would recommend Alluance
Daniella S.
Daniella S.
Tommy, Nick and Tom were incredibly professional throughout the whole installation experience. They continued to communicate on the work that they were doing. They did an excellent job and finished the work quickly and efficiently. Thank you!
Jan M.
Jan M.
Andre and Miguel were extremely efficient workers. Thank you!
Michael M.
Michael M.
Great job Miguel and Andre thanks
Louise M.
Louise M.
A big thank you to Andres Iván T Yunus James and Harry. It ended up being a difficult job and they were helpful polite and did everything they could to ensure the job went smoothly. A lovely team .
Andrew S.
Andrew S.
ACC were fantastic - Had a broken mainboard in my dankin unit. Need parts which would take up to a week. They offered me a portable aircon to help with my sick kids temp issues and it kept us happy until the part arrived. The work was done quickly and easily and the aircon after a service and new mainboard is better then ever.... Insanely good service and will be 100% keeping these guys on speed dial for all my aircon needs at my investment and home property ongoing .
George T.
George T.
Very impressed with the quality of service and professionalism from Alliance Climate Control. The initial consultation was thorough and considered, the installation was very clean and respectful, and the back-end admin and communications were easy, straightforward and transparent. I'm very pleased with final product (ducted Ac). I've no hesitation in recommending Alliance. Thank you James, Ken, Shadi, Trung, Harry and Jason! You did a great job!
Josef B.
Josef B.
Very professional and prompt. Couldn’t have asked for a better service.
Angela M.
Angela M.
Dealing with Alliance was a smooth experience. With my ducted air conditioning system failing and summer approaching, I anticipated getting quotes and scheduling installation would take a long time.However, just a couple of days after my initial quote request, a representative came over and explained my options, following up the lot clearly via email.Once we decided on the best option for our needs and made the call, the installers arrived within a week.Installers were friendly and professional, double-checking everything before starting the installation and cleaning up thoroughly afterward.We are delighted with the service provided, and our home is now ready for summer! I strongly recommend their services! 👌Thank you Alliance!
Jack A.
Jack A.
Andre and James were excellent in installing our new air con unit. They really went the extra mile in something which wasn’t necessarily a straightforward job and were extremely polite and helpful throughout. Would definitely recommend.
Albena R.
Albena R.
Great job! Huge thanks to Kevin, Dragan and Miguel for a smooth and efficient process. The install was a hassle free!
Matthew W.
Matthew W.
A really thorough and professional installation.
Kate C.
Kate C.
Tommy, Nick, Julian and Luan were fantastic. We moved into our new house, enquired about air con with Chris (who was also awesome!), and within 10 days we were fully installed with ducted throughout and split cycle in one room. We are so happy with their service, communication and professionalism. Thank you
john W.
john W.
Raj our technician was on time and very thorough in his assessment of our problem
David K.
David K.
Shazim, the technician who performed the service, was excellent. Extremely competent, polite, turned up on time. Clearly a very skilled individual.
Jane C.
Jane C.
Yiannis from Alliance Climate Control came to my house to fix the damage that happened during installation. Not only did he do an excellent job. He also helped me with a stubborn bayonet connection. This in extremely hot conditions. All the staff are friendly and take pride in doing a good job.Thanks Jane
Gail J.
Gail J.
Needed to have 2split a/cond serviced & the technician Gabriel explained all that needed to be done and the importance of it.Thank you Gabriel
Thomas M.
Thomas M.
Tommy and Nick were great, super easy process and quick install
Toni C.
Toni C.
Thank you Alliance.Had a great experience from the moment I called to book in a service to the end result.Special thanks to Andres R/ Ivan T - they were very thorough and had great patience setting up the new AC with WiFi. Would definitely recommend your company. Thank you!!
Dean
Dean
Initial consultation was with Raj and he provided a price for supply and install of air conditioning unit in my attic that i was happy with. BJ, James and Christian did the instal and were highly professional with finished work being neat, tidy and looking great. Really appreciate the teams assistance and highly recommend. Dean Alger
d b
d b
Andre and Miguel did our aircon installation and both were very professional and courteous. They explained the installation process, consulted with us on any details that needed clarification and cleaned up when the job was completed. Very happy with the service.
Kevin de S.
Kevin de S.
Great product and service. Friendly & helpful staff. Would recommend Alliance unreservedly.
Nadya C.
Nadya C.
I was impressed by the excellent communication and efficient installation. I would highly recommend them.
Joel Y.
Joel Y.
Alliance client control team installed new split air conditioner in my house today and it is great experience. B.J., Christian, Ivan are the best and awesome engineers ever and friendly guys, they did excellent and quality job and good customer service (they cleaned up everything even the outdoor gutter after work), so I very appreciate their service today. Also thanks very much to Alex, Chris and Keely! They are the customer service team members who did quotation, job booking and payment. Overall, definitely I will rate 200% satisfaction of my journey with ‘Alliance’ team. Regard, Joel Yang
Tony T.
Tony T.
Very professional and punctual. Great job overall
Eric N.
Eric N.
Thank you once again to the team at Alliance Climate Control. This was one of the smoothest home renovation projects I've experienced.My previous air conditioner was a complete nightmare after installation—I bought it from a certain large electronics store that handed off the job to unreliable third-party contractors. Within months, it started leaking from the base and couldn’t drain properly, it was angled weirdly. It became one of the most stressful events for me, especially during summer when we relied on the air conditioning. The constant repairs and cleaning added up quickly in both time and costs.When I finally surrendered and started to do my research i came across Alliance Climate Control. They not only promised to fix the issue but also ensure me they will install a new air conditioner the right way (they even stated this on their website - where they will make sure you are satisfied will their work before they finish). So when the team arrive, Kevin and Dragan took on a challenging job—my old unit was installed in an awkward position, with improper drainage and poorly done piping within the walls. But they were undeterred. They assessed the setup carefully, discussing how to best resolve the issues rather than just doing a quick install and leaving.Their attention to detail was impressive, and they left my place spotless after the job, ensuring I wouldn’t have to clean up after them. safe to say - my room is now cool and ready for the summer heat!The takeaway here: don't go with just any third-party installer. Air conditioning installations are complex, and cutting corners can cost you more in the long run. Alliance Climate Control's high ratings speak for themselves—they know what they’re doing.Thanks again, Kevin and Dragan—I truly appreciate all your help!
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Offer Save up to

$700

With any Air conditioning or Gas heater replacement installation trade in*

Limited time only, offer ends .
Not to be combined with any other offer

*Offer to be presented at point of booking or sale.

Request a
Upfront Quote