Fully insured and certified
Plastering work sits behind almost every finished interior surface, and poor-quality plastering shows up in ways that are hard to ignore — visible joins, cracking cornices, uneven walls that ruin an otherwise good paint job. Ultra Industries provides plastering, ceiling, and partition services across Sydney and NSW for residential renovations, new builds, and commercial fit-outs, with a focus on finishes that hold up over time.
We work directly with builders, project managers, and property owners on everything from single-room plasterboard repairs to full ceiling installations and commercial office partitioning.
Plasterboard installation — new wall and ceiling linings for renovations, extensions, and new builds. Plaster repairs — patching cracks, water damage, holes, and settlement-related damage in existing plaster. Cornice installation and repair — traditional and modern cornice profiles matched to existing detailing. Suspended ceilings — commercial-grade suspended ceiling systems for offices and retail fit-outs. Set and sand finishing — level 4 and level 5 finishes for paint-ready walls and ceilings. Wall partitioning — internal partition walls for both residential room additions and commercial office layouts. Fire-rated and acoustic partitioning — compliant partition systems where fire separation or sound insulation is required. Bulkheads and feature ceilings — recessed lighting bulkheads, raked ceilings, and architectural ceiling features.
The quality of a plastering job is judged in raking light — the low-angle sun that shows every imperfection in a wall or ceiling. Poor stopping, inconsistent sanding, and rushed set coats all become obvious once paint goes on, and by then it's an expensive fix. We finish plasterwork to a standard that holds up under this kind of scrutiny, not just under a quick inspection with the lights on overhead.
This matters particularly in renovations, where new plasterwork needs to blend seamlessly with existing walls and ceilings. Matching cornice profiles, replicating existing wall textures, and getting set coats consistent across old and new sections is a different skill set to plastering a brand-new build from scratch, and it's one we specialise in.
Cracking in plaster and cornices is extremely common across Sydney, largely due to reactive clay soils in western and south-western suburbs causing seasonal ground movement, along with general settlement in older homes. The temptation is to simply fill and paint over a crack, but if the underlying movement isn't understood, the crack reappears within a season or two.
We assess whether cracking is cosmetic or indicative of an ongoing structural or movement issue before repairing it, and where movement-related cracking is identified, we recommend appropriate control joints or flexible fillers rather than a rigid repair that will fail again.
Ceiling issues range from a single water-damaged patch to a full ceiling collapse requiring complete replacement. We handle water damage repairs following roof leaks or plumbing failures, sagging ceiling rectification including re-securing or replacing plasterboard, new ceiling installations in extensions, renovations, and new builds, and suspended ceiling grids for commercial spaces, including access panels for services.
For commercial clients, suspended ceiling systems need to accommodate lighting, air conditioning ductwork, sprinklers, and cabling, all coordinated with other trades. We manage this coordination directly with electricians, mechanical contractors, and fire services installers to avoid rework.
Wall partitioning is one of the most cost-effective ways to reconfigure a space without a full renovation. For homes, this often means splitting an oversized room into two, adding a study nook, or closing off an open-plan area. For commercial clients, it typically means creating offices, meeting rooms, or staff areas within an existing floor plate. If you're weighing up a job, our breakdown of partition wall cost in Sydney sets out real 2026 pricing for framing, lining and finishes.
Where fire separation between tenancies or acoustic performance between rooms is required, we install fire-rated and acoustic-rated partition systems built to the relevant Australian Standards, not standard plasterboard walls dressed up to look the part.
Can't find your answer?
Ask us directly →Recurring cracking usually indicates ongoing ground or structural movement rather than a plastering defect. We assess the cause before repairing, and use flexible fillers or control joints where movement is likely to continue, rather than a rigid fix that will fail again.
Yes, matching cornice profiles, wall textures, and finish levels between new and existing plasterwork is a core part of our renovation work, and something we specifically account for during scoping.
Yes, we install compliant fire-rated and acoustic partition systems for commercial premises, coordinated with other trades where services need to pass through or around partition walls.
A standard room ceiling replacement usually takes two to three days including installation, setting, and sanding, though this varies depending on room size and whether services need relocating.
Yes, we take on residential renovations, new home builds, and commercial fit-outs, applying the same finish standards across all project types.
Whether it's a single ceiling repair or a full commercial office fit-out, plastering quality is one of those details that either makes a space look genuinely finished or gives away a rushed job. Ultra Industries brings the attention to detail Sydney properties need. Contact Ultra Industries for a plastering, ceiling, or partition quote anywhere in Sydney or NSW.
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