At a Glance
Walk into a terrace in Paddington or Balmain and look up. Ornate plaster cornices with multiple profiles, ceiling roses, and detailed mouldings are part of the character. Walk into a modern apartment in Zetland or Mascot and you will see the opposite: clean square-set finishes with no cornice at all. Both ends of that spectrum fall within $150–$1,500 per job, but the work involved is very different.
What's Included in the Price
- Supply of cornice in the chosen profile (cove, ornate, or heritage match)
- Cutting mitres at corners and joins
- Fixing with adhesive and mechanical fasteners
- Filling, sanding, and finishing all joins to a paint-ready standard per AS/NZS 2589 Gypsum Linings
- For square-set: removing existing cornice (if applicable) and finishing the wall-ceiling join to Level 5
Ceiling roses are priced separately per piece. Painting after installation is a separate scope. Cornice joints and mitres need filling and sanding after installation, which means the cornice should always be painted after it goes up, not before.
What Affects the Cost
- Profile complexity. Simple cove cornice is quick to cut, fit, and finish. Ornate profiles with multiple steps and curves take longer to mitre and join cleanly.
- Heritage matching. In a period terrace where you are repairing a section or extending cornice into a new room, matching the existing profile is the challenge. If the profile is still manufactured, it is straightforward. If it has been discontinued, a custom mould needs to be made, which adds significant cost per metre.
- Square-set conversion. Removing cornice and creating a clean right-angle finish looks simple but is actually more labour-intensive than installing cornice. The join needs Level 5 finishing to look right, and the prep work after removing old cornice is substantial.
- Number of rooms. One room is a minimum-charge job. Multiple rooms reduce the per-metre cost.
- Ceiling height. Standard 2.4m is step-ladder territory. The 3m+ ceilings in many Sydney terraces need taller access.
- Old cornice removal. Pulling off old cornice damages the junction underneath. Budget for repair and preparation before new cornice goes on.
Standard cove cornice in a single modern room with no removal work sits toward $150. Heritage ornate cornice across multiple rooms in a period terrace, with old cornice removed, custom profile matching, ceiling roses, and high ceilings pushes toward $1,500.
Sydney-Specific Considerations
Sydney has two distinct cornice markets running in parallel.
The first is heritage cornice in the inner suburbs. Paddington, Balmain, Glebe, Newtown, Surry Hills, and Woollahra are filled with Victorian and Federation terraces that have elaborate plaster cornices and ceiling roses as part of their architectural character. When these homes are renovated, matching the existing cornice throughout is a common requirement, especially if only one or two rooms are being updated. If the profile can be sourced from existing manufacturers, the job is straightforward. If not, a mould needs to be taken from the existing cornice and a custom run made, which is specialist work and priced accordingly.
The second market is square-set finishes in modern apartments and contemporary renovations. Across the newer apartment stock in Zetland, Mascot, Waterloo, and Green Square, square-set has become the default. For homeowners renovating older apartments (1960s to 1980s stock in Bondi, Neutral Bay, Randwick), converting from dated cove cornice to square-set is a popular update. This gives a cleaner, more contemporary look, but the labour cost of Level 5 finishing at the join is typically more than simply replacing the cornice with a new profile.
If your home is heritage-listed or in a heritage conservation area, check whether the cornice is noted as a contributory element. Removing or altering heritage cornice without approval can result in council orders to reinstate it.
Hiring a Licensed Plasterer in NSW
NSW has separate licence classes for wet and dry plastering. Cornice work falls under the dry plastering scope. NSW Fair Trading requires a contractor licence for work valued over $5,000 (including GST).
When hiring for cornice work:
- Ask to see examples of completed cornice installations, particularly mitred corners (this is where quality shows)
- If heritage matching is needed, confirm experience with custom profiles
- For square-set, confirm the plasterer understands Level 5 finishing requirements at the join
- Verify public liability insurance
- Get a written quote that separates supply from labour, so you can see the profile cost
A well-installed cornice makes a room. A badly mitred corner is noticeable every time you look up. Quality matters more than speed on this job.
How We Calculate
Estimates are based on current plasterer rates in the Sydney metropolitan area, adjusted for property age and typical cornice styles in NSW. All prices include GST. Figures cover standard residential cornice installation. Heritage restoration with custom-moulded profiles may exceed these ranges.