At a Glance
Melbourne's inner suburbs have some of the oldest residential plaster in the country. Victorian terraces in Fitzroy, Edwardian homes in Carlton, and interwar bungalows in Northcote all share one trait: original lath-and-plaster walls that crack, sag, and crumble in ways that standard plasterboard does not. Repair costs range from $200–$1,450 per job.
What's Included in the Price
- Assessment of the damage and wall construction type (plasterboard or lath-and-plaster)
- Cutting back damaged sections to sound material
- Patching, re-sheeting, or wet-plastering as required to comply with AS/NZS 2589 Gypsum Linings
- Sanding and finishing to a paint-ready surface
- Dust containment and cleanup
For lath-and-plaster repairs, the process differs from plasterboard. The plasterer may need to re-key the plaster to the lath (the timber strips behind) or, if the lath has deteriorated, replace sections with plasterboard patched to match.
What Affects the Cost
- Wall construction. Lath-and-plaster (pre-1960s homes) costs more to repair than plasterboard. The materials are different, the techniques are slower, and fewer plasterers specialise in it.
- Cracking from soil movement. Melbourne's reactive clay soils cause seasonal ground movement that shows up as cracks in plaster. If the movement is ongoing, repairs will crack again unless the structural cause is addressed.
- Ceiling vs wall. Overhead work is slower and more physically demanding. Sagging lath-and-plaster ceilings may need partial or full replacement.
- Number of repairs. A single crack repair is a minimum-charge job. Whole-room crack repairs across multiple walls bring the per-metre cost down.
- Heritage requirements. Heritage-listed properties or those in heritage overlay areas may require like-for-like plaster restoration rather than plasterboard patching.
- Texture matching. Older Melbourne homes often have decorative plaster finishes. Matching these on a repair is specialist work.
A single crack repair on a plasterboard wall in a 1990s home with good access sits toward $200. Ceiling repair in a Victorian terrace with lath-and-plaster, heritage profile matching, and multiple rooms of cracking from soil movement pushes toward $1,450.
Melbourne-Specific Considerations
Melbourne's reactive clay soils are a primary driver of plaster cracking across the city. Suburbs built on Silurian clay, stretching across much of the northern and western suburbs (Footscray, Sunshine, Reservoir, Thomastown) and the south-east (Dandenong, Cranbourne), experience seasonal soil movement that translates directly into cracks through plaster walls and ceilings. Homes on sandy soils (Bayside suburbs, parts of the Mornington Peninsula) are less affected.
The distinction matters because soil-related cracking tends to recur unless the underlying movement is addressed through drainage improvements, tree root management, or underpinning. Patching a crack caused by ongoing soil movement is a temporary fix. A plasterer experienced with Melbourne conditions will tell you whether the cracking pattern suggests structural movement or normal settling.
Period homes in Fitzroy, Carlton, South Yarra, and Hawthorn frequently have ornate plasterwork including ceiling roses, decorative cornices, and moulded panel details. Repairing damage to these features requires a specialist who can mould and match profiles. This is not standard plasterer work. If your home is heritage-listed, you may also need council approval before altering or removing original plasterwork.
Hiring a Licensed Plasterer in VIC
In Victoria, the Victorian Building Authority (VBA) administers building practitioner registration. Single-trade plastering work does not require registration. However, when plastering is combined with other trades (as part of a renovation), registration requirements may apply.
Regardless of registration, verify that the plasterer:
- Has trade qualifications (Cert III in Plastering or equivalent)
- Carries public liability insurance
- Can show examples of work matching your repair type (lath-and-plaster if applicable)
- Will provide a written quote that specifies what is and is not included (painting, texture matching, heritage work)
For heritage-listed properties, confirm the plasterer has experience with heritage restoration. Not all plasterers do this work, and a poor repair on heritage plasterwork can reduce property value.
How We Calculate
Estimates are based on current plasterer rates in the Melbourne metropolitan area, adjusted for property age and common wall construction in VIC. All prices include GST. Figures cover standard residential plaster repairs. Heritage restoration, structural underpinning, and full ceiling replacements may sit outside these ranges.