Complete interior specialists
Cornice Repairs and Installation in Sydney
If you have been staring at a cracked cornice for months, you already know it is not going to fix itself. What starts as a hairline crack along the ceiling line gradually opens wider, collects dust, and starts pulling away from the wall. It is one of those jobs that looks minor but nags at you every time you walk into the room. The longer it sits, the harder the repair becomes.
What we do
Sydney Wide Plastering has been repairing and installing cornice across Sydney since 1993. We assess the damage, identify what caused it, and fix it so the repair is invisible once painted. If the crack is being caused by an underlying issue, we will tell you before we start work, not after.
Accredited & fully insured
Why Cornice Damage Matters
Damaged cornices are more than a cosmetic issue. Cracks in cornice can indicate:
Structural movement
Slight shifts in the building frame as it settles over time.
Moisture ingress
Water from a roof leak or condensation issue tracking along the ceiling-wall junction.
Poor original installation
Cornice that was not properly fixed or jointed during the original build.
We do not simply patch over the visible damage and move on. We assess the area to find the underlying cause so the repair holds. If ongoing movement or moisture is driving the cracking, we let you know before starting work so you can address the source of the problem.
Our Cornice Services
Cornice Repairs
We repair cracked, chipped, separated, and water-damaged cornice. Our repairs are finished so the fix is invisible once painted. We match the existing cornice profile so the repaired section blends seamlessly with the rest of the room.
Cornice Replacement
When existing cornice is too damaged to repair, or you want to update the style, we remove the old profile and install new cornice throughout. We carry a range of profiles from simple cove designs to ornamental and heritage styles.
New Cornice Installation
For new builds, extensions, and renovations, we supply and install cornice to suit the style of the property. Whether the design calls for a minimal square-set look or a decorative period profile, we have the range and the skill to install it cleanly. Cornice installation is a standard part of our gyprocking services on new builds.
Heritage and Decorative Cornice
Older homes with ornate plaster cornice require specialist attention. We repair and replicate heritage profiles, matching the original detail so restorations remain true to the building’s character.
What to Expect
All cornice installation is completed to Australian Standards. We prepare the surfaces, install and fix the cornice, finish all joins and mitres, and leave the cornice ready for painting. All debris and offcuts are removed from the site on completion. If you need the room painted after the cornice work, we offer that service too.
Why Choose Us for Cornice Work
- Over 30 years of cornice experience. We carry common profiles on hand and can match most existing cornice without a special order.
- Root-cause assessment. We identify why the damage happened, not just what it looks like. That is the difference between a repair that holds and one that cracks again in six months.
- Small jobs are welcome. A cracked cornice in one room is as straightforward to quote as re-cornicing an entire house.
- Invisible repairs. When we patch or replace a section, you will not be able to see where the old cornice ends and the new one begins.
- Full cleanup. No plaster dust on your floors, no offcuts left in the corner.
- Statutory warranty coverage. All residential work is covered by the warranty periods under the NSW Home Building Act 1989.
Read what our clients say about our work on the testimonials page.
Ready to get it fixed? Call Robert on 0405 847 224 for a straightforward quote. Most single-room cornice repairs can be quoted over the phone. For larger jobs, we will visit the site at no cost and no obligation.