At a Glance
Water stain on the ceiling after last week's rain, or a doorknob-sized hole in the hallway that has been there for six months. Either way, you are looking at $200–$1,500 per job for plaster repair in Sydney, depending on the number of areas, whether ceilings are involved, and how old the plaster is.
What's Included in the Price
- Cutting back damaged plaster or plasterboard to a clean edge
- Patching with new plasterboard, compound, or wet plaster as appropriate
- Jointing tape, setting compound, and sanding to meet AS/NZS 2589 Gypsum Linings standards
- A paint-ready finish (painting itself is usually a separate trade or DIY)
- Dust protection for floors and furniture in the work area
For water-damaged areas, the quote should include checking whether the substrate behind the plaster is compromised. If the source of the water has not been fixed, a responsible plasterer will flag that before starting.
What Affects the Cost
- Ceiling vs wall. Ceiling work costs more due to overhead access. Sagging ceilings may need sections replaced rather than patched.
- Plasterboard vs lath-and-plaster. Inner-city terraces built before 1940 typically have lath-and-plaster walls, which require specialist repair techniques. Standard plasterboard patching is faster and cheaper.
- Water damage extent. Surface staining is a quick fix. If plasterboard has swollen or delaminated, the damaged section needs cutting out and replacing.
- Number of patches. A single repair carries a minimum charge. Multiple patches across rooms are more cost-effective per patch.
- Texture matching. Smooth finishes blend easily. Textured finishes need careful matching to avoid a visible patch line.
- Asbestos risk. Pre-1990 properties may have asbestos in plaster, textured coatings, or fibro sheets. Testing before disturbing is a legal requirement.
A single plasterboard patch in a post-2000 apartment with good access sits toward $200. Multiple ceiling repairs in a pre-war terrace with lath-and-plaster, water damage, and texture matching pushes toward $1,500.
If the damage is from an active leak, get the plumber in first. Patching over ongoing water damage wastes money. If the source is fixed and the area is dry, the repair can be scheduled at your convenience.
Sydney-Specific Considerations
Sydney's inner west and inner south are dominated by pre-1940 terraces and semis. Marrickville, Newtown, Balmain, Glebe, and Surry Hills all have a high concentration of lath-and-plaster walls and ornate ceiling work. Repairing these requires a plasterer experienced with traditional techniques rather than standard plasterboard patching. Not all plasterers do this work, so ask before booking.
In apartment buildings, water damage from upstairs plumbing is one of the most common reasons for ceiling repairs. Ageing copper and galvanised pipes in older buildings (especially 1960s to 1980s blocks in Randwick, Bondi, and Neutral Bay) develop slow leaks that can go unnoticed until the plaster stains or sags. In strata properties, clarify whether the leak originates from common property or a neighbouring lot before arranging repairs. The responsibility for the plumbing fix may sit with the body corporate.
Sydney's housing stock from the 1950s through 1980s often has textured ceiling finishes. Matching these textures on a patch repair requires skill. If the entire ceiling needs a consistent finish, some homeowners opt to skim-coat the whole surface rather than attempting spot matches.
Hiring a Licensed Plasterer in NSW
NSW distinguishes between wet plastering (rendering, solid plaster) and dry plastering (plasterboard). NSW Fair Trading requires a contractor licence for plastering work valued over $5,000 (including GST).
For smaller jobs under the threshold, licensing is not mandatory, but hiring a qualified tradesperson still matters for quality. Ask for:
- Evidence of trade qualifications or licence (if over $5,000)
- Photos of previous repair work, particularly texture matching
- Whether they work with lath-and-plaster (if your home predates 1960)
- Public liability insurance
If the job involves asbestos testing or removal, that must be handled by a licensed asbestos assessor and removalist before the plasterer starts.
How We Calculate
Estimates are based on current licensed plasterer rates in the Sydney metropolitan area, adjusted for property age and common wall types in NSW. All prices include GST. Figures cover standard residential plaster repairs. Heritage restoration, full ceiling replacements, and commercial properties may fall outside these ranges.