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Add-on cooling Melbourne

Add-on cooling for gas ducted heating in Melbourne, through the vents you already have

Refrigerated add-on cooling fitted to an existing gas ducted heater across Melbourne, 7 days a week. A cooling coil goes in line with the heater, a condenser goes outside, and the same ducts and vents deliver cold air in summer. We check the heater and the ducts first, tell you plainly if a full changeover is the better spend, and you pay after the job.

Free quoteFree estimate over the phone, firm price from the office before any work, and you pay after the job.
Installed by licensed electricians and ARC-licensed techniciansHeater and ducts checked before anything is orderedAdd-on and changeover quoted side by sidePay after the job7 days a week
Sound familiar?

Signs your ducted heating is only doing half the year

Tick two or more and it is time to book — every one of these gets worse, never better, on its own.

Gas ducted heating that is brilliant in July and useless in January
Fans and portable coolers in three rooms, and a power bill to match
A split system in the lounge while the bedrooms cook all night
You were quoted add-on cooling and told a rebate applies, and it did not sound right
A heater only a few years old, so ripping it out feels like a waste
Ducts you have never seen and no idea whether they can carry cooling
A brick veneer or weatherboard home with a vent in every room and nothing coming out of them in summer
You want the whole house cooled from one controller, not room by room

What actually gets added to your gas ducted heater

Add-on cooling keeps your gas ducted heater and gives it a second job. A refrigerated cooling coil is fitted in the roof space, in line with the heater, so the heater’s own fan pushes air across it. A condenser goes outside on a slab or a wall bracket, and insulated refrigerant pipework links the two. The coil sheds water as it cools the air, so a condensate drain is run to a proper outlet and never left to drip onto the ceiling. The heating-only controller is swapped for one that runs both, and a licensed electrician wires the dedicated circuit the condenser needs.

Not every heater takes an add-on. The coil has to physically fit, the heater’s fan has to move enough air for cooling, and the two have to be able to talk to each other. Heaters sold as dual heating and cooling systems are built for it; many older units, and units already short on airflow to the far rooms, are not. That is why the job starts with a look at the heater model, the fan and the roof space rather than a price off a chart.

The whole thing is installed by licensed electricians and ARC-licensed technicians, with the refrigerant lines pressure-tested and vacuumed before a valve is opened. You get photos of the coil, the condenser and the drain when it is done.

Add-on cooling or a full changeover: which one is your house

Add-on makes sense when the gas heater is in good order with years left in it, the ducts are sound, and what you want is summer cooling through the same vents without touching the heating. It is one coil, one condenser and a controller, and the heater keeps doing the winters it is good at.

A full changeover makes more sense when the heater is getting old, the gas bills are climbing, or you would rather be off gas altogether. A ducted reverse cycle system heats and cools from one electric unit, and because it replaces the gas heater rather than sitting beside it, that changeover is the job the larger Victorian Energy Upgrades discount is built around. Add-on cooling is not: a cooling-only unit does not heat, so it does not qualify at all. We say that up front because a lot of advertising for add-on cooling implies otherwise.

The honest maths is age plus ducts plus gas. A younger heater with tidy ducts is an add-on candidate. A heater near the end of its life with tired ducts is a changeover, and the discount usually settles it. Tell the office the heater’s brand and age and they will talk you through both, with a free estimate for each. Our guide to adding cooling to ducted heating covers the third option too: split systems in the rooms that matter.

Your ducts decide how well the cooling works

Heating ducts were sized and insulated for heating. Cooling asks more of them. The coil adds resistance, so the fan has to push harder through the same runs, and a duct that was already borderline on the far bedroom becomes a duct that barely delivers. And a cold duct lying in a roof space that runs far hotter than the air outside on a January afternoon sweats and warms up unless its insulation is good and its joints are sealed.

So before we recommend an add-on we look at the ducts the way we look at them on a cleaning job: the size of the runs, the state of the insulation, the joints and the outlets, and the size of the return air. Some older homes pass with a clean and a few resealed joints. Some need a bigger return air grille so the fan is not starved. Some have flattened, split or uninsulated flex that should be replaced before anyone spends money on a coil. We photograph all of it and show you.

Sometimes the right answer is not add-on at all. If the ducts are at the end of their life, new ducts plus a ducted reverse cycle unit is a better spend than new cooling through old ducts, and it is the version that comes with the discount. Our duct replacement guide explains what we look for, and our ducted heating cleaning crews are the ones who look.

The VEU discount and add-on cooling: the straight answer

No VEU discount applies to add-on cooling. The Victorian Energy Upgrades heating and cooling discount is for installing a high-efficiency reverse cycle air conditioner that both heats and cools, and the larger ducted discounts are tied to a gas heater being decommissioned as part of the job. An add-on coil and condenser only cool, so the product rule is not met, and the gas heater stays connected, so there is no decommissioning to claim either. Any advertising that attaches a rebate figure to add-on cooling is describing a different job, and you should ask which one.

If the discount matters to your decision, the path that carries it is the full changeover on our replace gas ducted heating page, where FreshDuct arranges your VEU discount through our accredited installation partners and it comes off the quote up front. The office will put both figures in front of you on the same call, so you are choosing between two real quotes rather than a headline. Our VEU heating and cooling discount page explains how the discount works and who it is for.

Made simple

What gets added, in one picture

gas line staysGAS HEATERCOILcondenser added outsideSTAYSADDEDHeating stays gas. Cooling is added.The coil sits in the supply air after the heater, and the condenser outside does the cooling work in summer.No energy-upgrade discount applies to add-on cooling.
The gas heater, its gas line and its ducts all stay. A cooling coil is added inline after the heater and a condenser goes outside, so the same ducts blow cold air in summer. Because the gas heating is kept, no energy-upgrade discount applies to add-on cooling.
On the job

Roof spaces, ducts and crews, from our own jobs

Inside a Melbourne roof space, the kind of cavity an add-on coil is fitted in
Inside a Melbourne roof space, the kind of cavity an add-on coil is fitted in
Our crew working a Melbourne roof space
Our crew working a Melbourne roof space
Our vans and height equipment on a duct service job
Our vans and height equipment on a duct service job
The FreshDuct team, one call for the ducts and the cooling
The FreshDuct team, one call for the ducts and the cooling

Trusted by thousands of clients — homes, councils, universities & agencies

RMIT UniversityNDISDeakin UniversityBarry Plant Real EstateHarcourts Real EstateLJ HookerHobsons Bay City CouncilMaroondah City CouncilBelle PropertyRMIT UniversityNDISDeakin UniversityBarry Plant Real EstateHarcourts Real EstateLJ HookerHobsons Bay City CouncilMaroondah City CouncilBelle Property

Brands we service — heating, cooling & fireplaces

What you actually get

What an add-on cooling job actually involves

Every item below is part of the job, not an extra line on the invoice.

Included as standard

  • A licensed electrician for the condenser circuit, isolator and connection
  • An ARC-licensed technician for the coil, refrigerant pipework and commissioning
  • A compatibility check on your heater’s model, fan and airflow before anything is ordered
  • A duct inspection with photos: runs, insulation, joints, outlets and return air
  • Condenser on a level slab or bracket, condensate drained to a proper outlet
  • A controller that runs heating and cooling, set up and explained
  • Refrigerant lines pressure-tested and vacuumed before the valves are opened
  • Photos of the coil, the condenser and the drain, and you pay after the job

And the things we will not do

  • Fit a coil to a heater whose fan cannot move the air for it
  • Promise a VEU discount on a cooling-only unit
  • Push cooling through flattened, split or uninsulated ducts and call it done
  • Let the condensate drain onto the ceiling or into the roof space
  • Change the price on the day — the office confirms it before any work
How it works

From a phone call to cold air from the same vents

1. Tell us the heater

Brand, rough age, how many outlets and where the heater sits. The office gives you a free estimate over the phone for add-on and for a changeover.

2. We check the fit

Heater model, fan, roof space and ducts are checked and photographed. The office confirms the firm price before any work.

3. Coil, condenser, controller

The coil goes in line with the heater, the condenser outside, the pipework and circuit are run, and the system is commissioned in both modes.

4. Photos, then you pay

You see the coil, the condenser and the drain, run it yourself, and pay after the job.

Client Love

Clients love our service because nobody does it better

Real reviews from verified FreshDuct customers — find hundreds more on our Google profile.

Rated 5 out of 5 stars

“Cannot say enough about Gabriel and his team. They were very professional with their job. He taught me what I am supposed to know about vents and how to take care of them. They did an amazing job.”

TTimothy
Verified feedback
Duct Cleaning

Rated 5 out of 5 stars

“Our ducts had not been cleaned in 9 years. I was really happy with their professionalism and speed. They respected our house rules and the air in my home is really fresh and clean.”

AAmy Lee
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Air Duct Cleaning

Rated 5 out of 5 stars

“Outstanding service! Manny was very professional and polite. This is by far the most thorough cleanup that we have experienced. All vents were cleaned and sanitised.”

SSamantha
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Vent Cleaning & Sanitising

Rated 5 out of 5 stars

“Adam and his team were professional and very service oriented. They provided detailed before and after pictures to confirm the work and effort. Highly recommend FreshDuct.”

DDaniel
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Before & After Results

Rated 5 out of 5 stars

“Tom and Eddie did an outstanding job cleaning my air ducts. I scheduled my appointment yesterday and the job was completed within 24 hours. Very satisfied with the service.”

GGeorge
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Fast Appointment

Rated 5 out of 5 stars

“We had pet stains and a bad smell in the carpet and air ducts. After FreshDuct visited, the house smells fresh and clean again.”

BBrittany
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Odour Removal

Rated 5 out of 5 stars

“Our house flooded in the storms with over a metre of water. FreshDuct came recommended by our neighbours and arrived the same day.”

RRicky
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Emergency Response

Rated 5 out of 5 stars

“They were clear up front about pricing and exactly what was included. Very thorough from start to finish.”

KKristina
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Upfront Pricing
Real People, Real Fleet

You will know us when you see us

Branded vans, uniformed technicians, professional equipment — the team your neighbours already know.

The FreshDuct branded fleet, ready across Melbourne
The FreshDuct branded fleet, ready across Melbourne
The FreshDuct team — at your service, 7 days
The FreshDuct team — at your service, 7 days
Height-access equipment for multi-storey and commercial jobs
Height-access equipment for multi-storey and commercial jobs
Straight answers

Add-on cooling questions, answered straight

Can you add cooling to existing ducted heating?

Often, yes. If your gas ducted heater has the space, the fan capacity and a compatible control board, a refrigerated coil is fitted in line with it and a condenser goes outside, so the vents you already have deliver cooling in summer. Older or undersized heaters sometimes cannot take an add-on, and that is what the compatibility check settles before anything is ordered.

How much does it cost to add cooling to ducted heating?

It is quoted per job, because it depends on the heater, the capacity of coil your home needs, how far the condenser sits from the roof space and what the ducts need. The office gives you a free estimate over the phone, confirms the firm price before any work, and you pay after the job. We put the full changeover figure beside it so you can compare.

Is there a VEU rebate for add-on cooling?

No. The Victorian Energy Upgrades discount requires a reverse cycle unit that both heats and cools, and the larger ducted discounts are tied to decommissioning the gas heater. Add-on cooling only cools and the heater stays connected, so it does not qualify. If a discount matters to you, the changeover to ducted reverse cycle is the path that carries one.

Will my existing ducts work with add-on cooling?

Many do, some need work and a few should be replaced. Cooling needs sound insulation, sealed joints and enough return air, and heating-only ducts were not always installed with that in mind. We inspect and photograph the runs before recommending an add-on, and if the ducts are at the end of their life we say so, because new cooling through failing ducts disappoints everyone.

Which gas ducted heaters can take add-on cooling?

Heaters sold as dual heating and cooling systems are built for it, and some models from the major gas ducted brands have a matching coil available. Older heaters, heaters with small fans and units already struggling to push air to the far rooms are the usual ones that cannot. Give the office the brand and rough age and they will know quickly.

Is add-on cooling as good as ducted reverse cycle?

For cooling on a hot day, a properly sized add-on through sound ducts performs well. The differences are in the rest: a ducted reverse cycle unit also heats, gets you off gas and is the version the VEU discount applies to. If the heater is young and the ducts are good, add-on is the sensible spend; if not, changeover.

Can add-on cooling be zoned?

Yes, if the system is set up for it. Motorised dampers in the duct runs and a zoning controller let you cool the living areas by day and the bedrooms by night instead of the whole house at once, which is where the running cost comes down. Whether your existing duct layout suits zoning is part of the inspection, and we tell you either way.

How long does add-on cooling take to install?

Many jobs are a single day: coil and controller first, then the condenser, pipework and circuit, then commissioning in both modes. Duct repairs or a new return air add time, and the office tells you the day plan when they confirm the price. The heater is reconnected and running before we leave.

Does add-on cooling use the same vents and return air?

The same ceiling or floor vents deliver the cooled air, so nothing changes in the rooms. The return air grille is the part that sometimes has to change: cooling moves more air than heating and a small return starves the fan, so a larger grille, or a second one, is a common part of the job.

Worth knowing

The detail, for people who like detail

Add-on cooling Melbourne

FreshDuct fits refrigerated add-on cooling to existing gas ducted heating across metropolitan Melbourne, with licensed electricians and ARC-licensed technicians. The heater is checked for compatibility, the ducts are inspected and photographed, and the coil, condenser and controller are installed and commissioned in both modes. Quoted free over the phone, firm price from the office before any work, and you pay after the job.

Refrigerated add-on to gas ducted heating

A cooling coil is fitted in line with the gas heater in the roof space, a condenser is placed outside, and insulated refrigerant lines and a condensate drain connect them. The heater’s fan moves air across the coil, so the existing vents deliver cooling in summer and gas heating in winter from one controller. The heater itself is untouched.

Duct suitability for add-on cooling

Cooling needs better insulated, better sealed ducts than heating alone, and enough return air to feed the fan. Because FreshDuct cleans and inspects ducted heating systems every day, the duct check is part of the job: sound runs are kept, poor joints are resealed, and crushed or uninsulated flex is called out for replacement before any coil is ordered.

Add-on cooling and the VEU discount

No VEU discount applies to add-on cooling. The Victorian Energy Upgrades discount is for a reverse cycle unit that both heats and cools, most often replacing a decommissioned gas heater. A cooling-only add-on with the gas heater still connected does not qualify. The discounted path is a full changeover to ducted reverse cycle, arranged through our accredited installation partners.

Where we work

Ducted heating and cooling installation across Melbourne

All of metropolitan Melbourne, 7 days a week — and if your suburb is not listed, we still come to you. The office confirms the details for your address when they call with your free estimate.

BrunswickRichmondCamberwellGlen WaverleyDoncasterWerribeeFrankstonRingwoodCraigieburnPoint CookCarltonHoppers CrossingPrestonDandenong
Ducted cooling, heating and the discount

One roof space, every way to cool it

Ducted reverse cycle air conditioning

One electric system that heats and cools the whole house through the ducts, new install or changeover.

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Replace gas ducted heating

The full changeover: gas heater decommissioned, ducted reverse cycle in, and the VEU discount off the quote.

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Evaporative to refrigerated conversion

Roof unit off, condenser in, ducts assessed for reuse, and the roof flashed over.

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Adding cooling to ducted heating: the options

Add-on coil, full ducted refrigerated, or splits in the key rooms, compared plainly.

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Ducted heating cleaning

The duct clean and inspection that tells you whether your runs are ready to carry cooling.

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VEU heating and cooling discount

What the Victorian discount covers, who is eligible, and why cooling-only units are not.

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Cold air from the vents you already have, or a straight answer if it should be a changeover

Tell us the heater’s brand and age and how many outlets you have. The office gives you a free estimate over the phone for add-on and for a full changeover, confirms the price before any work, and you pay after the job.

Get my add-on cooling quote Or call 04 3191 8137
Tell us about the heater
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