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Home/Air conditioning
Split · ducted · multi-head

Air conditioning installed by our own electrical & plumbing team

Reverse cycle systems from a 2.5kW split to a 20kW ducted install. Get off gas heating, keep the comfort, and cut the running cost — with the plumbing, the electrical and the gas decommissioning all done by the same company on the same day.

Splits from 2.5kW to 7.6kW
One room or an open living area
🏠
Ducted 16kW & 20kW
Up to 170m² and 230m², up to 8 zones
🔗
Multi-head to 9 indoor units
One outdoor unit, several rooms
VEU rebates handled Up to 7 years system warranty Electrical & plumbing licensed in house
Daikin inverter outdoor unit installed on a commercial roof in Melbourne by Trigger Group
Three system types

Which one suits your house?

The right answer usually comes down to how many rooms you actually want conditioned and whether there's roof space to run ducts. We'll tell you straight which one makes sense.

Split system

One room or open area · 2.5–7.6kW

  • Fast install, no ducting required
  • Room-by-room control
  • Add extra units later as needs change
  • Eco mode up to 30% more efficient than a standard inverter AC
  • 5 yr system warranty, 2 yr labour & service
Sizing2.5–7.6kW

20m² · 35m² · 70m²

Best for whole homes

Ducted

Whole home from one system · 16kW & 20kW

  • Up to 8 individual zones
  • Low-profile indoor unit for tight roof spaces
  • 33% more airflow in long duct runs
  • Like-for-like replacement on many gas ducted homes
  • 7 yr system warranty, 5 yr labour & service
Covers170–230m²

16kW to 170m² · 20kW to 230m²

Multi-head

Several rooms, one outdoor unit · 12.6–20kW

  • Up to 9 indoor units on one outdoor unit
  • Independent temperature control per room
  • Indoor units in 2.5kW, 3.5kW and 7.2kW
  • Add more indoor units later
  • 7 yr system warranty, 5 yr labour & service
Outdoor12.6–20kW

Pro 12.6kW · Ultra 18.1kW · Ultra 20kW

Sizing guide

Split system sizing, honestly

Undersizing is the most common mistake — the unit runs flat out on the hottest day and never quite gets there. These are the numbers we work to before we adjust for your ceilings, glass and aspect.

SystemRecommended room sizeTypical use
2.5kWUp to 20m²Bedroom, study, small living area
3.5kWUp to 35m²Master bedroom, medium lounge
7.6kWUp to 70m²Open plan living, high ceilings
Why reverse cycle

Getting off gas heating is the single biggest saving in most Melbourne homes

Gas ducted heating is one of the most expensive ways left to heat a house in Victoria. Reverse cycle does the same job for a fraction of the running cost, because — like a heat pump hot water system — it moves heat rather than burning something to create it.

It also removes the carbon monoxide risk that comes with any gas appliance, and it gives you cooling in summer from the same equipment. On many homes the existing ductwork can be reused, which keeps the changeover cost down considerably.

DC inverter technology adjusts fan and compressor speed to the actual room temperature rather than cycling hard on and off, so you don't get the hot-and-cold swing older systems are known for.

Year-round control

Reverse cycle gives you efficient heating and cooling from one system. Switch modes as the weather turns.

Wi-Fi and app control

Manage the climate in your home from anywhere with AC Link and the Emerald app.

Cleaner air

Filtration removes common airborne pollutants, and there's no combustion happening inside the house.

Retrofit or new build

Designed to fit existing homes as readily as new construction — including tight roof spaces.

Supply & install

Emerald Energy ducted and split systems

Emerald is the same Australian manufacturer behind the heat pumps we fit, going since 2006. We supply and install their ducted systems and single head splits, and because we hold the electrical licence the circuit and the unit are done on the one visit.

Emerald air conditioning split system, three indoor heads and the outdoor unit
Emerald Ducted Ultra 16kW indoor fan coil, outdoor unit and wall controller

Single head split systems

Emerald air conditioning split system indoor head unit

Three sizes — 2.5 kW, 3.5 kW and 7.6 kW — so there's a fit for a bedroom through to an open-plan living area. Reverse cycle, so it heats through winter as well as cools.

  • High efficiency DC inverter
  • Anti-corrosion treatment on the outdoor unit, condenser, fins and fastenings
  • One-click self cleaning
  • Demand Response compliant (DRM1, DRM2, DRM3)
  • 5 year system warranty, 2 years labour and service

Ducted Ultra 16 kW

VRF system for whole-home temperature control, with high static pressure so the air actually reaches the far end of the duct run.

  • Auto Adjust External Static Pressure sets the airflow at commissioning
  • Cold Wind Limit holds outlet air between 10 and 16°C
  • Eco mode — up to 30% less power
  • Flared refrigerant connections, so no welding or brazing in your roof space
  • 7 year system warranty, 5 years labour and service

Downloads

Why it matters who installs it

Both trades. One company. No subcontractors.

Almost every energy job in a Melbourne home crosses two trades — the plumbing and the electrical. Not every company selling energy products holds either licence, so it's worth asking who will actually be standing in your house on the day. We hold both licences and employ both trades.

Worth asking before you sign Check

  • Who does the install — your own employees, or a subcontracted crew?
  • Is the plumbing and the electrical done by the same company, on the same day?
  • Is the person quoting me paid on commission?
  • Is this price fixed, and has anyone looked at my switchboard yet?
  • In year five, who do I ring about a warranty claim?

Trigger Group Us

  • Our own licensed electricians, on our own payroll — REC 36222
  • Our own licensed plumbers, on our own payroll — BPC 50819
  • One company on the phone, on site, and on the warranty
  • Price confirmed in writing after we've seen your switchboard — not after we've started
  • Melbourne owned, based in Pakenham since 2012, around 20 staff. We're not going anywhere
Straightforward

Four steps, no pressure

No commission-paid sales rep, no in-home closing appointment. We look at the job, we quote it, we install it.

1

Enquiry

Call us or send the form. We talk through what you need and book an assessment — often we can size it over the phone.

2

Fixed written quote

A clear scope of works and a real number in writing. Rebates already deducted. No hidden surprises on install day.

3

Installation

Our own licensed electricians and plumbers. Compliance paperwork lodged, system commissioned and tested.

4

Handover & aftercare

Site left clean and safe, app set up, and we walk you through it before we leave. Support afterwards if you need it.

Recent work

Air conditioning we've installed

Real installs by our own crews. We fit all the major brands — we're not tied to one supplier.

Real customers, real names

What Melbourne homeowners say

4.6
★★★★★
28 Google reviews
★★★★★

“We recently had a heat pump installed and couldn't be happier with the service. Aaron was professional, punctual, and efficient. The installation was completed to a very high standard, everything was explained clearly…”

Lee CGoogle review · 2 months ago
★★★★★

“A huge thank you to Trigger — Aidan, Zac & Cody for stepping in at short notice during the busy Christmas period to replace the hot water system and upgrade the meter box. Loving your work.”

Prashant TandonGoogle Local Guide · 7 months ago
★★★★★

“Thanks to Trigger for successfully completing the heat pump installation. Very professional and neat job.”

Kevin BernardGoogle review · 1 month ago
Read all 28 reviews on Google →
Before you ask

Straight answers about air conditioning

What size split system do I need?

As a guide: 2.5kW suits a room up to 20m², 3.5kW up to 35m², and 7.6kW up to 70m². Ceiling height, insulation, window area and which way the room faces all shift it, so we confirm on site rather than guessing off floor area alone.

Split, ducted or multi-head — which one?

A split system heats and cools one room or open area and is the cheapest and quickest to install. Ducted does the whole house from one system through ceiling vents, with up to 8 zones. Multi-head runs several indoor units off a single outdoor unit — the answer when you want three or four rooms done without three or four outdoor boxes on the wall.

Can reverse cycle replace my gas ducted heating?

Yes, and on many homes it's a like-for-like replacement using the existing ductwork. Reverse cycle is substantially cheaper to run than gas ducted, it removes the carbon monoxide risk entirely, and it gives you cooling in summer from the same system.

Do you handle the rebates?

Yes. Split system air conditioning is eligible under the Victorian Energy Upgrades program, and we handle the certificate paperwork. As an accredited installer we claim on your behalf so the value comes off your price rather than being something you chase.

What's the warranty?

Split systems: 5 years on the system and 2 years labour and service. Ducted and multi-head: 7 years on the system and 5 years labour and service. Those are the manufacturer's terms as published on the data sheets, which you can download from this page.

Who does the electrical work?

We do. Air conditioning installs frequently need a dedicated circuit or a switchboard upgrade, and we hold the electrical licence in house — REC 36222. No waiting on a second company to come back.

Free, no obligation

Get an air conditioning quote

Split, ducted or multi-head — we'll tell you which one actually suits the house before we quote it.

Licensed in both trades
BPC 50819 · REC 36222
4.6 stars, 28 Google reviews
Real customers, real names
🏠
Pakenham based, since 2012
Melbourne & the south-east

Get your air con quote

Tell us which rooms you want done and we'll come back with sizing and a real installed price.

or
Call (03) 9100 1214

Got it — thanks.

One of our team will call you shortly. If it's urgent, ring us on (03) 9100 1214.

Still heating with gas?

Reverse cycle will cut what you spend keeping the house warm, and it cools it in summer too. Let's price the changeover.