Karl Mathew Diehl
- Licence
- 707789
- Type
- Individual
- Based in
- Victoria Point QLD 4165
On the QBCC register
According to QBCC’s data published 5 Nov 2026.
Holds a contractor licence, so can sign a contract with you directly.
No suspensions or cancellations recorded since 1 July 2026.
QBCC’s record for licence 707789
What this licence covers
Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design)
Trade Contractor Licence
Can contract for this work
Mechanical Services - Plumbing
Trade Contractor Licence
Can contract for this work
Financial category: Self Certification - Trade. QBCC uses financial categories to set the most a licensee can turn over each year. What the categories mean
Licence record
-
5 Nov 2026
Checked: on the register
Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) and Mechanical Services - Plumbing all listed.
-
1 July 2026
Start of this record
QBCC’s lists of suspensions and cancellations start each financial year. We keep a daily copy, so this record grows over time.
Questions about Karl Mathew Diehl
Is Karl Mathew Diehl licensed with QBCC?
Yes. Karl Mathew Diehl holds QBCC licence 707789, and it was on QBCC’s register published 5 Nov 2026. Check QBCC’s own record for licence 707789 to confirm today’s status before you sign or pay a deposit.
What work is Karl Mathew Diehl licensed to do?
Karl Mathew Diehl holds 2 licence classes: Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) and Mechanical Services - Plumbing. Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design): The broadest air conditioning licence. It covers installing and servicing air conditioning, refrigeration and ventilation, and designing these systems. Mechanical Services - Plumbing: For building, installing, repairing, servicing and testing a building's heating and cooling systems. Check that the class matches your job. Work outside these classes needs another licensed contractor.
Source: QBCC: Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) licence
Can I sign a contract with Karl Mathew Diehl directly?
Yes. Karl Mathew Diehl holds a contractor licence for Mechanical Services - Air-conditioning and Refrigeration (Unlimited Design) and Mechanical Services - Plumbing, so you can sign a contract with them directly. The name on your quote and contract should be Karl Mathew Diehl, the licence holder.
Has Karl Mathew Diehl had a QBCC suspension or cancellation?
None recorded since 1 July 2026. We check QBCC’s suspension and cancellation files every day, and licence 707789 hasn’t appeared in them since our record began.
Where is Karl Mathew Diehl based?
QBCC’s register lists Karl Mathew Diehl in Victoria Point QLD 4165. A QBCC licence covers work anywhere in Queensland, so they can take on jobs outside Victoria Point.
What is Karl Mathew Diehl’s QBCC financial category?
QBCC lists Karl Mathew Diehl in the financial category “Self Certification - Trade”. QBCC uses the category to set the most a licensee can turn over each year. A very large job from a contractor in a small category is worth a question.