King Fabrication · Commercial Ductwork

Commercial Ductwork & Ventilation — Built Fast, Built Right, Built Compliant.

End-to-end ventilation builds for commercial kitchens, factories, warehouses and workshops. We design, fabricate and install the whole system — and certify it on commissioning.

Full design + build + install
Compliance certs included
Tested + balanced on handover
24-hour quote turnaround
Call (02) 9119 8800 4.9 · 47 Google reviews

Get a Ductwork Quote

24-hour quote turnaround. Free on-site scope.

No spam. We only contact you about this request.

Why King Fabrication

One team, one timeline, one certificate.

Design + Build + Install

No three-way blame games. We design the ventilation system, fabricate the ductwork, and install it. One point of accountability.

Compliance Built In

AS 1668.2 (mechanical ventilation), AS 4254 (ductwork), Section J energy compliance. Certificates issued on commissioning.

Tested + Balanced

Every system is air-flow tested and balanced before sign-off. We hand you commissioning data, not just a handshake.

Sydney-Owned Workshop

Custom spiral and rectangular duct fabricated in our Sydney shop — faster than ordering pre-made. Custom shapes welcome.

King Fabrication scoped, fabricated and commissioned the entire factory ventilation system in 5 weeks. First-time pass on the WorkCover inspection. The before/after airflow data they handed us is the best documentation we've had from any trades contractor.
— Factory operations manager · Sydney
FAQ

Common questions

Can you handle the design or do I need a separate consultant?

We can handle the design ourselves for most commercial systems. For specialised cleanroom or pharma applications we partner with a mechanical engineer at no extra cost to you.

How fast can you get a system installed?

Standard commercial fitouts: 4–8 weeks from quote acceptance. Urgent works can be expedited — get in touch and we'll tell you straight up.

Do you work with builders and head contractors?

Constantly. We slot into D&C and traditional contracts. We supply shop drawings, RFIs and progress claims to your format.

What happens if there's an issue post-installation?

12-month workmanship warranty on all installs. Ductwork itself carries the manufacturer's material warranty (typically 10+ years).

Are you insured for site work?

Yes — $20M public liability, $10M product liability, full workers comp. Insurance certificates supplied on request before site mobilisation.

Ready to scope your ventilation build?

24-hour quote turnaround. Free on-site scope visit.

Call (02) 9119 8800
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