Structural Steel Solutions for Residential, Commercial & Industrial Builds — Expert Fabrication & Installation Across Melbourne
We partner with builders, architects, engineers, developers and business owners across all industry sectors in Melbourne.

Custom and volume builders across Melbourne rely on A.C. Steel for custom metal fabrication and residential structural steel packages — from a single first-fix beam to a complete structural steel package. We work directly with your concreters and builders to keep the program on track.

From small commercial fit-outs to large-scale warehouse and industrial structures — our custom metal fabrication services deliver steel packages that meet Australian Standards, on-time and on-budget. Mezzanine floors, portal frames, access platforms and more.

We understand that architectural custom metal fabrication is as much about appearance as it is about structure. We work from your detailed drawings to produce staircases, balustrades, feature walls, and custom metal elements that match the design intent precisely.
Builders, architects and business owners across Melbourne choose A.C. Steel because we combine technical precision, honest pricing, and seamless project management — from design through to final installation.
Every cut, weld and finish happens in our own Keysborough workshop. No subcontractors, no markups, no surprises. Consistent quality and faster turnaround — because we control every step ourselves.
Our in-house drafting team designs every project using AutoCAD and 3D modelling. Shop drawings and structural layouts are part of our service — not an extra cost.
Deadlines matter on a construction site. We align fabrication and delivery with your build program — and communicate clearly at every stage so you always know where your steel is.
All fabrication meets AS 4100 and the NCC. We supply mill certificates, compliance documentation and all paperwork your certifier or engineer needs — so your project never stalls at inspection.





A clear, stress-free process designed around your build timeline and project requirements.
CAD files, engineer drawings, hand sketches or just a verbal brief — send us what you have. We provide a detailed, itemised quote fast — usually within 24 hours. No hidden charges, no vague estimates.
Our in-house engineers produce shop drawings and structural layouts tailored to your site, architecture, and compliance requirements under AS 4100. All included — no extra cost.
Your steel is cut, pressed, welded and finished entirely in-house at our Keysborough workshop using CNC machinery and certified welding. Full quality control before dispatch.
We coordinate delivery directly to your site and our experienced installation team erects the steelwork aligned with your building program. We don't leave until the job is done right.
From a single custom bracket to a complete structural steel package — we fabricate and install it all, on time and on spec.

Custom-engineered steel beams, columns, lintels and architectural features for Melbourne homes — from single-storey extensions to multi-level townhouses and luxury builds.

Portal frames, structural steel packages and custom metalwork for warehouses, offices, retail fit-outs and mixed-use developments across Melbourne's commercial sector.

Heavy-duty fabrication for manufacturing plants, distribution centres and industrial facilities. Robust structural and functional metal components built for demanding environments.

One-off or batch-run custom metal parts and welded assemblies — fabricated to your exact drawings, CAD files or hand sketches. MIG, TIG and stick welding by qualified tradespeople.

Architecturally designed steel staircases, balustrades and sheet metal work for residential and commercial spaces — combining structural performance with striking visual design.

Precision-fabricated steel carports, pergolas, retaining wall supports and steel gates for Melbourne homes — engineered for Melbourne's weather and council requirements.
A selection of our recent fabrication and installation projects across residential, commercial and industrial sectors in Melbourne.

Residential structural steel · Melbourne Eastern Suburbs

Industrial steel fabrication · South East Melbourne

Architectural metalwork · Inner Melbourne

Commercial steel fabrication · Greater Dandenong

Residential structural steel · Eastern Suburbs
Based in Keysborough, we fabricate and install structural steel and custom metalwork across all Melbourne metro regions. Below are the key areas we regularly service.
As Keysborough-based custom metal fabricators, A.C. Steel is ideally positioned to serve the south-east corridor quickly and cost-effectively. Our local base means faster site visits, lower transport costs, and the ability to attend site meetings at short notice.
A.C. Steel regularly delivers and installs custom metal fabrication for residential and commercial projects in Melbourne's Bayside and inner south suburbs. Coastal environments may require hot-dip galvanised or stainless steel finishes — we advise on the best specification for your location.
From luxury custom homes in Toorak to multi-unit residential developments in Box Hill, A.C. Steel services Melbourne's eastern suburbs with precision custom metal fabrication and on-site installation.
We regularly supply and install custom steel fabrication for commercial warehouse builds, industrial facilities, and residential projects across Melbourne's inner, northern and western suburbs.
We service the Mornington Peninsula and outer south-east for residential and commercial custom metal fabrication. Coastal and marine-grade specifications are available for peninsula projects exposed to salt air and moisture.

Custom metal fabrication means engineering and manufacturing steel or metal components that are made specifically for your project — not off-the-shelf parts that need to be forced to fit. At A.C. Steel, every piece is designed from your drawings, cut with precision CNC machinery, welded by certified tradespeople, and delivered ready to install.
Whether you're a builder planning a multi-storey townhouse steel package, an architect specifying an architectural steel staircase, or a business owner needing a custom mezzanine floor for your warehouse in Melbourne — working with a dedicated custom metal fabricator means tighter tolerances, no costly rework on site, and full compliance with AS 4100 and Australian Standards from the start.
Common questions from builders, homeowners and businesses looking for custom metal fabrication in Melbourne.
A.C. Steel provides a full range of custom metal fabrication services in Melbourne including structural steel fabrication, CNC cutting and machining, MIG, TIG and stick welding, boilermaking, sheet metal work, staircases and balustrades, carports and pergolas, mezzanine floors, and on-site installation. We work with mild steel, structural steel grades (300PLUS, Grade 350), stainless steel, and aluminium.
Cost depends on material type, complexity, quantity and finish requirements. Simple custom components may start from a few hundred dollars, while full structural steel packages for large residential or commercial builds can range significantly. A.C. Steel provides free, detailed, no-obligation quotes — call 0431 885 854 or submit a request online for a precise estimate based on your drawings or specs.
Yes. All fabrication at A.C. Steel complies with Australian Standards including AS 4100 (steel structures) and the National Construction Code (NCC). We work closely with structural engineers to ensure full compliance and can provide certification documentation, mill certificates and compliance records with every structural steel package.
Yes — we take on projects of all sizes. From single custom components like a steel bracket or balustrade post, through to complete structural steel packages for multi-storey residential developments, large commercial warehouses, and industrial facilities across Melbourne. No job is too small or too large.
Absolutely. We accept everything from detailed CAD drawings and structural engineer plans through to rough hand sketches or even a verbal description of what you need. Our team will help refine the design and confirm all dimensions before fabrication begins. If you have existing plans or drawings from your architect or engineer, those work perfectly too — just send them through with your quote request.
Lead times vary depending on the complexity and size of the job, as well as current workshop capacity. Simple custom components can often be turned around within a few days. Larger structural steel packages for residential or commercial builds are typically scheduled in coordination with your construction timeline. Contact us early in your project planning so we can reserve your fabrication slot and align delivery with your build program.
Based in Keysborough, A.C. Steel services all Melbourne metro suburbs — including the South East, Inner Melbourne, Bayside, Eastern Suburbs, Northern Suburbs, Western Melbourne, and the Mornington Peninsula. We deliver and install on-site across greater Melbourne and regional Victoria.
We offer both options. For most structural steel projects, we provide full fabrication and on-site installation — our team delivers and erects the steelwork in line with your building program. For clients who have their own installation crew, we're happy to supply fabricated steel only. Let us know your preference when requesting a quote.
A.C. Steel offers hot-dip galvanising for maximum corrosion resistance in outdoor and coastal environments, powder coating in a full range of colours and textures for architectural steel, industrial primer coating for structural steel to be painted on site, and stainless steel fabrication for hygiene-sensitive or high-moisture applications. We advise on the best finish for your project during the quoting process.
We work with mild steel, structural steel (300PLUS and Grade 350), stainless steel, and aluminium. Our team selects the most appropriate grade for your project's structural load requirements, environmental exposure, and finish. We can advise on the best material choice for your specific application during the quoting process.
At A.C. Steel, we specialise in structural steel solutions tailored for residential, commercial, and industrial builds. We help builders and architects deliver structurally durable, cost-effective, and on-time projects.
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