An independent research database No paid placement · No referral fees
N NeedATrade
Trade 17 of 33Updated June 2026

A research dossier · 260 trade-region files across 8 states & territories · refrigeration ticket + electrical licence verified

Hiring an HVAC Installer
is two trades in one truck.

Aircon install needs both a refrigeration ticket and an electrical licence. One person can hold both, or two trades can come to site — but the work needs both. The high-risk operator install does the refrigeration without the electrical, or the other way around, and you find out the day the warranty claim gets denied. Undersizing is the second trap: the cheap quote on a 3-bedroom is almost always under-sized for the actual heat load, and you spend the next decade running it at full throttle.

2

Tickets needed: refrigeration + electrical.

30%

Common undersize cushion the cheap quote skips.

Sep–Nov

Booking window where prices spike + installs slip.

In a hurry? Start here

I've got quotes

Compare them properly

Most hvac installer quotes price different scopes. See what a real quote contains, line by line.

I need someone now

Handle it urgently

Make-safe price first, full quote second — and verify the licence before anyone starts.

Is this one legit?

Verify this tradie

The free 60-second routine: licence, insurance, ABN, history — before you pay a deposit.

My state

Check your state rules

Licensing, deposit caps and the common gotcha for your state and territory.

Or grab the four printable buyer checklists →

90-second briefing

Read this first

Before you hire an HVAC installer, know this.

  1. 1

    Refrigerant work requires an ARCtick licence — no ARCtick, no legal install.

  2. 2

    Sizing is everything — an undersized or oversized unit wastes money for its whole life.

  3. 3

    Confirm whether it is a back-to-back, or needs extra pipe run, electrical and drainage (all extras).

  4. 4

    Get the unit model, capacity (kW) and warranty specified in writing.

  5. 5

    Get the licence, ARCtick and insurance details before any deposit.

How this page was built

A research dossier, not a referral page.

Sources

Reddit (r/sydney · r/melbourne · r/AusFinance), Whirlpool, ProductReview, AIRAH (Australian Institute of Refrigeration, Air conditioning + Heating), ARC (Australian Refrigeration Council) installer registry.

Verification

Sizing calculations cross-checked against AIRAH heat-load rules of thumb. Refrigeration handling licence verified through ARCtick (the national refrigeration trade authorisation).

Funding

No installer pays for placement. No referral fees. Funded by the supply-side flyer service at tradies.needatrade.com.au/flyers/.

Before we start

Two tickets, one job.
Wrong on either = wrong install.

HVAC sits at the intersection of two regulated trades — refrigeration and electrical. A licensed refrigeration mechanic handles the gas-charged refrigerant lines, the system commissioning, and the warranty paperwork. A licensed electrician handles the power supply, switchboard, and isolator. Quote-trap operators try to do both on one ticket. The unit fails inside warranty and the manufacturer denies the claim because the install wasn't fully licensed.

The 10 questions below force both tickets into the conversation before you pay. A working operator welcomes them — they have both, or coordinate with the second trade. A cowboy stalls — the cheap install depends on you not asking.

If they can't name the ARCtick number and the electrical licence number, you don't have an aircon installer — you have someone with a drill and a ladder.

01

How much should it really cost?

Aircon pricing splits cleanly into the unit + the install. The undersized quote is almost always selling you the wrong unit at the right price.

A working aircon quote has six lines. The cheap quote merges them and lets you assume the savings come from somewhere harmless.

Six lines a real quote should show

  • 1Heat-load calculation. The kW number must be sized to your room's heat load, not eyeballed.
  • 2Unit brand + model + kW. Daikin / Mitsubishi / Fujitsu / Panasonic / Hisense. Cooling kW + heating kW separate.
  • 3Refrigeration install. Pipe length, brazing, vacuum, charge, commissioning.
  • 4Electrical install. Power supply, isolator, dedicated circuit if needed.
  • 5Compliance + commissioning. CCEW / COES electrical cert + ARCtick refrigeration record + manufacturer warranty registration.
  • 6Make-good. Wall patching, paint touch-up, condenser pad. Disclosed in writing.

Indicative ranges · supply + install

AU 2026

Split system (2.5 kW · single bedroom)$1,400 – $2,200
Split system (5–7 kW · living)$2,400 – $4,200
Split system (9 kW · open plan)$3,500 – $5,800
Multi-head (1 condenser · 3 heads)$6,500 – $11,500
Ducted system (3BR · zoned)$9k – $16k
Ducted (4–5BR · large · ceiling-mounted condenser)$14k – $26k
Indicative. Cathedral ceilings, double-storey, three-phase upgrade, strata access, heritage = upper end. Bargain-brand units = cheaper but warranty support is the gamble.

Ask this, exactly

Save · share · screenshot

"Can you send the heat-load calculation, the unit brand + model + kW, the refrigeration install line, and the electrical install line — separately, with both your ARCtick and electrical licence numbers?"

02

How to tell a real one from a cowboy.

The HVAC villain is the supply-and-install retailer using sub-contracted installers paid per job. They turn up in a brand-name uniform with no individual licence to point at.

Red flags — in order of how often you'll meet them

  • !

    No heat-load calculation

    "5kW does a lounge." It doesn't — not in 2026, not in a north-facing room, not on a 38° day. A working installer measures + calculates. A corner-cutter guesses.

  • !

    Won't name the ARCtick installer number

    The ARCtick (Australian Refrigeration Council) authorisation number identifies the licensed refrigeration mechanic on the job. Without it, manufacturer warranty is at risk.

  • !

    Same person doing electrical + refrigeration without both tickets

    Most operators hold both. Some don't. The dodgy install is the electrician doing refrigeration without ARCtick, or the refrigeration mechanic doing electrical without an electrical licence.

  • !

    "Bargain unit, no brand, full warranty"

    Warranty is only worth as much as the local service network. Major Tier-1 brands (Daikin / Mitsubishi / Fujitsu / Panasonic) have national service. Unknown brands often disappear inside 5 years.

  • !

    Pre-summer pressure-sell

    "Get it in before the 38° day." Real urgency exists. But a working installer doesn't cut corners to hit a sales target — they tell you honestly when their slot is.

The verification routine — 5 minutes, free

  1. ✓
    ARCtick authorisation — search the individual at the ARC website. Confirms they can handle refrigerant.
  2. ✓
    Electrical licence on state register (Building Commission NSW · ESV · ESO QLD).
  3. ✓
    ABN on abr.business.gov.au. At least 12 months. Match the licence.
  4. ✓
    Manufacturer authorised installer status for the brand you're buying. Improves warranty support — the manufacturer takes the claim seriously.
  5. ✓
    CCEW / COES + ARCtick lodgement record promised at handover.

Ask this, exactly

"Could you send your ARCtick number, your electrical licence number, and confirm you're an authorised installer for the brand on the quote?"

03

What licence and certificate?

HVAC needs federal refrigeration authorisation + state electrical licence. Both are non-negotiable.

FederalAll states

ARCtick

  • Refrigerant Handling Licence (Full / Restricted) issued by Australian Refrigeration Council.
  • Required to install, service, decommission any system charged with controlled refrigerant.
  • Each licensee has an individual authorisation number.
  • Check the ARC database.
NSW · QLD · VICElectrical

State electrical licence

  • CCEW (NSW) / COES (VIC) / Form 5 (QLD) issued for the electrical install.
  • Power supply, isolator, switchboard work — all licensed electrical.
  • Sometimes the refrigeration mechanic holds both; sometimes a separate sparky comes to site.
  • Check the relevant state register.
ManufacturerBrand

Authorised installer

  • Daikin / Mitsubishi / Fujitsu / Panasonic each run authorised installer programs.
  • Manufacturer warranty cover is stronger for systems installed by authorised installers.
  • Not legally required — but a strong positive signal.
  • Brand websites list authorised installers by suburb.

Half-time

Wrong size = wrong install. Forever.

Quote anatomy, the cowboy test, the two tickets. The first three sort licensed installers from sub-contracted phone-room operations. The next seven are how you tell working installers apart — and how the unit lasts the warranty period without running flat out.

04

When you need them now.

The booking window runs September to November — and that's when prices spike, installs slip, and "we'll get to you next week" becomes "actually December." The honest operators tell you that. The red-flag operators promise faster than they can deliver.

Off-peak (June–Aug).

Best time. Installers have capacity. Discounts available. Slot in a week or two.

Pre-summer (Sep–Nov).

Demand spike. Quotes go up 10–20%. Installers run 3–6 weeks out. Lots of corner-cutting.

Peak (Dec–Feb).

Emergency-only mode for many installers. Repair triages priority over new installs.

Ask this, exactly

"What's your real install date — not the booking date — and do you have a written rule if you slip?"

05

What happens next, step by step.

  1. 1Step

    Site visit + heat load

    Room dimensions, aspect, insulation, glazing, ceiling height. Real heat-load calculation, not a guess.

  2. 2Step

    Written quote + system spec

    Brand, model, kW, install method, refrigeration line set, electrical supply, all itemised.

  3. 3Step

    Contract + 10% deposit

    Letterhead. Both licence numbers. Variation rules in writing. Install date confirmed.

  4. 4Step

    Install day

    Indoor + outdoor units mounted, pipework run, vacuum, brazing, refrigerant charge, electrical connection, isolator install.

  5. 5Step

    Commissioning + tests

    Cooling test, heating test, condensate flow, leak test, electrical safety. Manufacturer warranty registration.

  6. 6Step

    CCEW/COES + ARCtick + invoice

    Both certificates lodged + copied to you. Invoice itemised. Warranty pack handed over.

06

Split, multi-head, or ducted?

Three system types. Different upfront costs, different running costs, different lifespans. The wrong system for your house is the most expensive aircon decision.

Option A · most common

Split system

One indoor unit, one outdoor condenser, one room (or open-plan area). Efficient + cheap to repair.

Right when: single room or open-plan area, simple install, budget-conscious.

Wrong when: whole house, multiple rooms — 4 splits ≠ 1 ducted.

$1.4k – $5.8k

Option B

Multi-head

One outdoor condenser, 2–5 indoor units in different rooms. Less wall-mounted clutter than multiple splits.

Right when: 2–4 rooms to cool, narrow strata block, want fewer external condensers.

Wrong when: 5+ rooms — ducted becomes more cost-effective. One condenser breaks = all heads down.

$6.5k – $11.5k

Option C

Ducted

Single condenser, ductwork through the ceiling, zoned vents to each room. Most efficient for whole-house cooling.

Right when: 3+ bedrooms + living area, accessible ceiling space, new build / major reno.

Wrong when: no ceiling space, heritage with restricted ductwork access, low ceilings.

$9k – $26k

07

Warranty — three different clocks.

Three warranties, three different lengths, three different things they cover. Confusing them is how the cheap install's warranty claim gets denied at year four.

  1. Layer 01

    Manufacturer unit warranty

    5 years parts + labour standard for Tier-1 brands. 7 years on Daikin / Mitsubishi for residential. Only valid if installed by an ARCtick-licensed mechanic.

  2. Layer 02

    Installer workmanship

    Pipework, brazing, electrical connection, mounting. Typically 1–5 years from the installer. Spell out callback rule.

  3. Layer 03

    Refrigerant + recharge

    Refrigerant leak warranty often limited (12 months on workmanship leaks). Top-up charge is at homeowner cost outside that window.

  4. Layer 04

    Statutory consumer law

    ACL requires reasonable workmanship. Always exists. Doesn't require a brochure.

Ask this, exactly

"Can you list the manufacturer warranty length, your installer workmanship warranty, and the refrigerant leak rule — in writing?"

08

Heat, humidity, strata, three-phase.

HVAC pricing tracks several site factors closely. Some you can't change — others you can plan around.

  • Climate

    Subtropical (SE QLD) needs more capacity for humidity. Inland (Canberra, Bendigo) needs reverse-cycle for cold winters. Coastal corrosion = stainless or treated outdoor cabinets.

  • Strata

    External condenser location, noise impact on neighbours, common-property penetration. Owners corporation approval required.

  • Three-phase

    Large ducted systems (~16 kW+) may need three-phase. Some suburbs don't have it — network operator decides.

  • Ceiling void

    Ducted needs ~400mm of ceiling void. Older homes with low pitch can't fit standard ductwork. Specialist install or rethink to multi-head.

Ask this, exactly

"Have you confirmed I've got the supply (single vs three-phase) + ceiling void you need, and what's the noise impact for strata neighbours?"

09

Edge cases — get a second opinion for…

  • Heritage / Conservation Area

    External condenser location restricted by council. Some heritage overlays prohibit visible-from-street condensers. Specialist solutions exist (split with hidden condenser).

  • Strata / apartment

    Owners corporation approval. Noise impact on adjacent units. Common-property penetration through walls. Some buildings restrict aircon entirely.

  • Three-phase upgrade needed

    Large ducted (~16kW+) or multi-head can push single-phase past limits. Three-phase upgrade adds $5k–$15k.

  • Switchboard upgrade needed

    Old boards may not support an inverter aircon. Switchboard upgrade is a separate quote.

  • Asbestos walls / ceiling

    Pre-1990 fibro walls + asbestos eaves common. Drilling needs containment. Specialist work + disposal.

  • Cathedral / raked ceiling

    No ducted possible. Split or multi-head only. Bulkheads + wall-mounted units the typical solution.

  • Coastal corrosion (within 1km of coast)

    Stainless steel + epoxy-coated condenser cabinets. Wrong cabinet = 3-year corrosion failure outside warranty.

  • Zone control + smart home

    Zoned ducted with smart-home integration. Specialist install. Daikin Airbase / Mitsubishi MELCloud / etc.

  • Heat-pump hot water + aircon

    Different trade boundary. Heat-pump HWS often plumbed + electrical, not refrigeration. Different operator may apply.

10

After they leave.

Aircon aftercare comes down to two things: filter cleaning (homeowner job, every 3 months) and annual service (installer job, every 12 months). Skipping either voids most manufacturer warranties — and most warranty claims are denied because nobody serviced the unit.

Filter cleaning routine.

Every 3 months — homeowner job. Walked through at handover. Dirty filter halves the efficiency.

Annual service.

$180–$320 per unit. Refrigerant check, coil clean, electrical test. Keeps manufacturer warranty alive.

Warranty registered.

Manufacturer site lists serial number + install date + your details. Often missed by lazy installers.

Both certificates filed.

CCEW/COES + ARCtick lodgement record kept by you. Both required for sale of the house.

Ask this, exactly

"Will you register the manufacturer warranty for me, send both certificates by email, and quote your annual service rate?"

If you've read this far

An installer who names both tickets, the heat-load number, and the manufacturer warranty registration is not a unicorn. It's the bar.

The verification routine below is how you confirm any HVAC installer you find — their licence number, insurance certificate, ABN, specialist endorsements, and references — before you sign or pay a deposit. We don't introduce, list or recommend specific tradies. No phone-room sales. No paid placement.

✓ No referral fees✓ Verified means all 10✓ No spam
Verify any HVAC installer's licence 60-second routine · 6 free checks

Editorial position: we don't list, rank or recommend tradies on this site.
The separate operator platform — members.needatrade.com.au — opens later this year.

The toolkit

Use these before you sign.

The four components below apply to every Australian trade contract. The trade-specific sections above add the layer on top.

74 homeowner quotes · Reg State trade regulator + work-safety regulator · 9 operator quotes · Last reviewed June 2026

Quote anatomy

What a real quote should contain

01

Operator + ABN

Full legal name + active 11-digit ABN

Verify on the Australian Business Register before paying any deposit. If the ABN isn't active, the contract has no enforceable counterparty.

02

State trade licence

Licence number + class on the quote

Cross-check on the relevant state regulator (linked in the glossary licence-check section). Confirms they can legally do the work.

03

Public liability insurance

$10–20 million cover, still current (not expired)

This is what pays if they damage your home — or a neighbour's — or someone is injured during the job. Ask them to email you the insurance certificate; "I'm covered, mate" is not proof.

04

Workers' insurance

In place if they bring any workers onto your property

If a worker is hurt on your property and the operator has no workers' insurance, you can be the one left liable. A genuine sole trader with no employees may not need it — just ask.

05

Itemised scope of work

What's included, what's not, line by line

"Standard installation" means nothing in court. Specific scope items are what get enforced.

06

Materials specification

Brand, grade, quantity, AS standard where applicable

Prevents the "we used what was on the truck" substitution that turns up under failure inspections.

07

Variations clause

How changes get priced + agreed, in writing

No written variation = unenforceable. Verbal "we'll work it out" is how budgets blow out by 40%.

08

Deposit + progress

Within your state's legal cap (e.g. NSW 10%; VIC 10%/5% by threshold; QLD tiered 20%/10%/5% by job value)

Above-cap deposits are illegal. Caps differ by state — check your state's current regulator guidance. Progress payments should align with completed stages, not arbitrary dates.

09

Warranty terms

Workmanship period + manufacturer warranty pass-through

Statutory warranty applies regardless, but written terms accelerate enforcement.

10

Completion definition

What "practical completion" means for this job

Triggers final payment + starts the defects liability period.

11

Dispute path

Named regulator/tribunal for disputes (e.g. NCAT, VCAT, QCAT)

Knowing the path before signing makes you a less attractive target for a dispute.

If a quote you receive is missing any of these, ask for them before you sign or pay a deposit.

The working operator vs the cowboy

Where
✓ Working operator
✗ Cowboy

Quote

Written, itemised, with named scope + exclusions. Numbered + dated.

A number on a text. "I'll do it for $X."

Licence

Licence number on the quote; matches the name on the state register.

"I'll send the licence later." Never does.

Insurance

Emails you the insurance certificate the same day you ask.

"I'm insured, mate." Never actually sends the certificate.

Deposit

Within statutory limit. Held in their account, receipted.

Asks for cash up front. Above the legal limit.

Variations

Written. Cost + time impact. You sign before work changes.

Verbal "we'll sort it out". Surprise invoice at the end.

Warranty

Written workmanship period. Manufacturer cert handed over.

"My word's my warranty." No paper.

References

Three recent jobs with photos + contact for past clients.

"All my reviews are on Google."

Clean-up

Final clean defined in scope. Photos taken at handover.

Site left messy. Promises to "come back tomorrow".

State-by-state contract compliance

Choose your state:
NSW Licensed

Regulator

Building Commission NSW

Common gotcha

ARCtick licence evidence; CCEW (Certificate of Compliance for Electrical Work) for the wiring

VIC Licensed

Regulator

Energy Safe Victoria

Common gotcha

ARCtick licence evidence; Certificate of Electrical Safety (CoES) for the wiring

QLD Licensed

Regulator

Electrical Safety Office (WorkSafe Queensland)

Common gotcha

Mechanical services — air-conditioning and refrigeration (unlimited/limited design)

WA Licensed

Regulator

Building and Energy (DEMIRS)

Common gotcha

ARCtick licence evidence; Electrical Safety Certificate (installing work, within 28 days) for the wiring

SA Licensed

Regulator

Office of the Technical Regulator (OTR) — licensing via CBS

Common gotcha

ARCtick licence evidence; eCoC (electronic Certificate of Compliance) for the wiring

ACT Licensed

Regulator

Construction Occupations Registrar (Access Canberra)

Common gotcha

ARCtick licence evidence; Certificate of Electrical Safety for the wiring

NT Licensed

Regulator

NT WorkSafe (Electrical Safety Regulator)

Common gotcha

ARCtick licence evidence; Electrical Certificate of Compliance for the wiring

TAS Licensed

Regulator

CBOS (cert lodged with TechSafe Australia)

Common gotcha

ARCtick licence evidence; Certificate of Electrical Compliance (CEC) — notifiable work for the wiring

Ask this, exactly

Could you send your state trade licence number, current Certificate of Currency for public liability, and ABN before I confirm — and please put the itemised scope, deposit terms, and variation clause in writing too?

Send via SMS or email before booking. A working operator replies the same day with all of it attached. A cowboy stalls.

Deposit checklist

Before you pay an HVAC installer deposit, collect these

  • Licence number

    State trade licence + class, printed on the quote. Verified on the regulator register.

  • ABN

    Active 11-digit ABN, entity name matching the licence. Checked on abr.business.gov.au.

  • Certificate of currency

    Current public-liability certificate (and workers comp if they bring workers). The insurer’s one-page proof — not “I’m covered, mate”.

  • Written, itemised quote

    On letterhead, numbered and dated. Not a number in a text message.

  • Scope inclusions / exclusions

    What’s in, what’s out, line by line. “Standard installation” is not a scope.

  • Deposit amount

    Within your state’s statutory cap (NSW 10%; QLD tiered 20% / 10% / 5% by job value; VIC 10% / 5% by threshold; other states vary). Check your regulator before paying.

  • Variation clause

    How changes get priced and agreed — in writing, before the work changes.

  • Warranty terms

    Workmanship period + manufacturer pass-through, with year limits and what triggers a callback.

  • Compliance / handover paperwork

    The certificate or compliance document you’ll receive at completion (varies by trade and state).

  • Defects / callback process

    The defects-liability period and how you call them back for an obvious fault — in writing.

  • ARCtick refrigerant licence

    HVAC installer-specific

  • Unit model and capacity (kW) specified

    HVAC installer-specific
Collect every item before you transfer a deposit. If a tradie stalls on any of them, that is the answer.

Related references

Briefing

The 12 questions →

 Operational

Verify a tradie →

 Translation

Glossary →

 Provenance

Source ledger →
← Back to all 33 trades

Trade 17 of 33.

Standards

Standards often relevant to this trade

These are orientation references only — not a complete or job-specific list. Ask the licensed contractor to confirm the current standards, the NCC, and any state or territory requirements that apply to your job.

Plain-English definitions, who’s responsible, and an “ask this” for each → see the glossary.