What's Included in the Price
- Inspecting the damage and identifying wall construction (plasterboard, lime plaster over masonry, or fibro)
- Cutting back damaged material to a sound substrate
- Patching or re-sheeting to AS/NZS 2589:2017 Level 4 standard for plasterboard, or lime plaster repair using compatible materials where appropriate
- Base coat and topping compound (CSR Gyprock or Knauf products for plasterboard work), sanding, and finishing to a paint-ready surface
- Dust containment and cleanup
For character homes with lime plaster over bluestone or sandstone, a cement-based or gypsum-based patch is not suitable. Cement is harder and less breathable than lime, and traps moisture against the masonry. Over time, this causes the stone to spall and deteriorate. A plasterer experienced with Adelaide's older homes will use NHL (natural hydraulic lime) or lime putty that matches the original construction. These materials are more expensive ($30–$50/bag vs $10–$15 for cement), cure more slowly, and require specialist technique, but they protect the building long-term.
What Affects the Cost
- Wall construction. Plasterboard repairs are standard work. Lime plaster on masonry (bluestone, sandstone, or solid brick) requires specialist materials and techniques, adding time and cost. The gap between the two can be substantial: standard plasterboard patching runs $20–$50/m2, while lime plaster restoration on heritage masonry starts at $80–$150/m2.
- Reactive clay cracking. Northern suburbs (Salisbury, Elizabeth, Parafield Gardens) and southern suburbs (Morphett Vale, Noarlunga) sit on expansive clay soils. Cracks open in summer as the clay dries and shrinks, then close partially in winter. A good plasterer will use flexible jointing compound and tape on clay-related cracks, which accommodates minor seasonal movement.
- Ceiling damage. Overhead work costs more. Older Adelaide homes with high ceilings (3m+) in character suburbs need scaffolding, adding $100–$200 per room.
- Heritage requirements. Properties in heritage conservation zones (Norwood, Unley, Prospect, North Adelaide) may require like-for-like repair using traditional materials and methods. Council approval may be needed before altering original plasterwork.
- Ornate plasterwork. Decorative cornices, ceiling roses, and arch mouldings in Adelaide's character homes need profile matching. Simple cove cornice runs $5–$10/m. Ornate Federation profiles requiring custom moulds can reach $50–$150 per linear metre.
- Number of repairs. Multiple patches across rooms are more cost-effective per repair than a single small job, which carries a minimum callout charge of $150–$300.
A single plasterboard crack repair in a 1990s home at Mawson Lakes sits toward $150. Heritage lime plaster restoration across multiple rooms in a bluestone cottage in Norwood, with ornate cornice matching, ceiling work, and clay-related cracking, pushes toward $1,300.
Adelaide-Specific Considerations
Adelaide's character home suburbs, concentrated in Norwood, Unley, Prospect, North Adelaide, and parts of Goodwood and Colonel Light Gardens, have a high density of bluestone and sandstone homes with original lime plaster finishes. These walls are solid masonry (no cavity), and the plaster is applied directly to the stone in two or three coats. Modern plasterboard patching does not work on these surfaces: the materials are incompatible, and screwing plasterboard to masonry walls creates a different plane that is visible where it meets the original plaster. The repair needs a plasterer who understands lime-based systems and can match the thickness, texture, and profile of the existing work.
Reactive clay soils across Adelaide's northern plains (Salisbury, Elizabeth, Parafield Gardens, Munno Para) and southern suburbs (Morphett Vale, Noarlunga, Hackham) create seasonal cracking patterns that are distinct from settlement or structural cracking. The AWCI (Association of Wall and Ceiling Industries) recommends using flexible jointing systems on cracks in reactive clay areas, as rigid repairs will simply re-crack with the next dry season. If cracks are less than 2mm wide and stable in pattern, they are cosmetic. Wider cracks, or cracks that progressively widen, warrant an engineer's assessment before committing to plaster repair.
Adelaide has a smaller trade pool than Sydney or Melbourne. For specialist heritage plastering work, the pool is smaller still. If your property needs lime plaster restoration, allow extra lead time (two to four weeks is typical) to find the right plasterer. A good heritage plasterer will propose lime-based materials, not cement. If someone quotes cement plaster on a bluestone or sandstone wall, that is a signal to get a second opinion. After the plaster repair is finished, interior painting is the follow-on trade.
Hiring a Licensed Plasterer in SA
In South Australia, Consumer and Business Services (CBS) administers Building Work Contractor's Licences. Plastering that constitutes building work requires this licence.
Worth checking:
- Licence status on the CBS licence search
- Experience with your specific wall type (plasterboard, lime plaster on masonry, or fibro)
- For heritage properties, confirmed experience with lime-based plaster systems and work in heritage conservation areas
- Public liability insurance
- A written quote separating repair work from any painting, and specifying the materials to be used
A good plasterer will assess the cracking pattern and advise on whether the cause is cosmetic settling, seasonal clay movement, or structural. For heritage properties in conservation zones, a poor repair can trigger council remediation orders, so specialist experience matters.
How We Calculate
Estimates are based on current plasterer rates in the Adelaide metropolitan area, adjusted for property age and typical wall construction in SA. All prices include GST. Figures cover standard residential plaster repairs. Heritage restoration, structural engineering, and full ceiling replacements may sit outside these ranges.