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Licensed air-conditioning and refrigeration contractors in Knox

4 air-conditioning, refrigeration & mechanical businesses in Knox hold a licence on the QBCC register. 4 of them (100%) show a current licence as of 5 November 2026.

The most common licence classes are Mechanical Services - Air-conditioning and Refrigeration (Limited Design) (3) and Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) (3). Each profile lists the licence number, its classes and status, and the ABN and ASIC details.

Companies listed
4
With a current licence
4 (100%)
Source
QBCC
Register checked
5 November 2026

Air-conditioning, Refrigeration & Mechanical companies in Knox

Current licences first, then A to Z

  • Airmaster Australia Pty Ltd as the trustee for Airmaster Australia Unit TrustCurrent
    QBCC 15173807, 3179, since 1987
    Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design)
  • AIRMASTER CORPORATION PTY LTDCurrent
    QBCC 15246774, 3179, since 2008
    Mechanical Services - Air-conditioning and Refrigeration (Limited Design)Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design)
  • CB AIR CONDITIONING PTY LTDCurrent
    QBCC 15605225, 3156, since 2016
    Mechanical Services - Air-conditioning and Refrigeration (Limited Design)
  • D & E AIR CONDITIONING PTY LIMITEDCurrent
    QBCC 15101557, 3178, since 2012
    Mechanical Services - Air-conditioning and Refrigeration (Limited Design)Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design)

About licensed air-conditioning and refrigeration contractors in Knox

In Victoria, domestic building work over $10,000 must be done by a builder registered with the Building and Plumbing Commission. Plumbing work needs a licensed or registered plumber at any value.

A licensed air-conditioning contractor in Knox holds a licence from the Victorian Building and Plumbing Commission that names the classes of work they may carry out. The licence has to be held by the business you sign with: a director's personal licence does not cover their company, and a licence in one class does not cover work in another.

TradesField reads QBCC and the Australian Business Register and lists every company with a air-conditioning, refrigeration & mechanical class in Knox. Licence status is free to check. The Construction Background Report adds court, adjudication, ASIC and licence conduct records, graded A to E.

Licence classes held

Air-conditioning, Refrigeration & Mechanical classes across the 4 companies, by how many hold each.

  • Mechanical Services - Air-conditioning and Refrigeration (Limited Design)3 of 4 companies
  • Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design)3 of 4 companies

Air-conditioning and refrigeration contractors in Knox: common questions

How do I check if a air-conditioning contractor in Knox is licensed?

Search the company by name or ABN, or open its profile from the list on this page to see its licence number, classes and status. Then confirm the licence on the Victorian Building and Plumbing Commission's own register before you sign or pay a deposit, because registers change daily.

How many licensed air-conditioning and refrigeration contractors are there in Knox?

4 companies in Knox hold a licence with a air-conditioning, refrigeration & mechanical class, and 4 of them show a current licence as of 5 November 2026. Sole traders are not listed, only companies and trusts.

Does a air-conditioning contractor need a licence in Victoria?

In Victoria, domestic building work over $10,000 must be done by a builder registered with the Building and Plumbing Commission. Plumbing work needs a licensed or registered plumber at any value.

What licence classes do air-conditioning and refrigeration contractors in Knox hold?

By number of companies: Mechanical Services - Air-conditioning and Refrigeration (Limited Design) (3) and Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) (3). The class has to cover the work in your contract.

What should I check before engaging a air-conditioning contractor?

That the licence is current and its class covers the work, that it is held by the business named on the contract and invoice (not a director or a related company), that the ABN is active, and that you hold current insurance certificates. Court, payment dispute and insolvency records are in the Construction Background Report.

Air-conditioning and refrigeration contractors in other council areas

Other licensed trades in Knox

All licensed air-conditioning and refrigeration contractors in Victoria

Listings come from QBCC licence search records and the Australian Business Register, last read on 5 November 2026. Only companies and trusts are listed. Status is as the register showed it when we read it; confirm it with the regulator before you sign or pay a deposit.

A listing is a record, not a recommendation.

TradesField brings public register records together so checking a contractor is quicker. It does not replace the authorities that keep them. Records can change after we read them, and a register can hold something we have not matched, so check licences, company status and court records directly with the QBCC, ASIC, the courts and the relevant state regulator before you rely on them, sign a contract or pay a deposit. TradesField is independent and not affiliated with any government authority. Information here is general and is not legal or financial advice.

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