Sydney Wide Plastering is your team of complete interior specialists. When you need plastering or gyprocking done in Sydney, we are your first choice.
Water damage is a common problem in Australian homes. A damaged ceiling isn’t just an eyesore, it can lead to mould growth, sagging plaster, and even structural risks. Acting fast is key to preventing further issues.
At Sydney Wide Plastering, we’re experts in ceiling repair, from minor stains to full plaster ceiling repair jobs. This guide will walk you through the process step-by-step.
Before repairing, ensure the ceiling is completely dry. This prevents further damage and stops mould growth.
How to dry your ceiling:
If the plaster feels soft or spongy after drying, it needs to be replaced.
If the plaster is compromised, it’s best to cut out and replace the affected section.
What you’ll need:
How to cut the damaged section:
Once the damaged section is removed, you can install a fresh piece.
This ensures a strong, seamless finish that is ready for plastering.
Now it’s time to blend the new plasterboard into the rest of the ceiling.
The final step is painting to restore a flawless ceiling.
Once dry, your ceiling will look as good as new.
One of the biggest mistakes is jumping straight into ceiling repairs without addressing the cause of the leak. If you don’t stop the water source, whether it's a leaking roof, burst pipe, or condensation issue, your new plasterboard will be damaged again in no time.
The plasterboard needs to be completely dry before repairs begin. Rushing this step can lead to lingering moisture, which can weaken the ceiling and cause mould growth.
Not all water-damaged plasterboard can be saved. If the affected area is soft, sagging, or crumbling, it must be removed and replaced. Simply painting over stains or patching up weak sections can lead to structural failure later on.
When replacing a section of plasterboard, precision matters. A poorly cut replacement piece with irregular edges will result in visible gaps and a messy finish. Always measure twice and cut straight, using a tape measure, utility knife, and keyhole saw for accuracy.
New plasterboard must be screwed into ceiling joists or a stable framework. Using an inadequate number of screws or relying only on adhesive can result in an unstable patch that eventually sags or detaches. Secure the panel every 15 cm for a firm hold.
To create a seamless finish, always use jointing tape and compound over the seams and screw heads. Skipping this step or applying too little compound can leave noticeable cracks and rough patches once painted.
Sanding is crucial for achieving a smooth and even finish. Many people either skip sanding altogether or over-sand, causing dips in the plaster. Use 80–120 grit sandpaper and apply light pressure to blend the repair seamlessly into the existing ceiling.
Water-damaged areas often leave behind stains that can seep through paint. Using a stain-blocking primer is essential before applying ceiling paint. Without it, discolouration may reappear, ruining the final look.
If there are signs of mould on the damaged ceiling, it must be treated before replacing or painting the plasterboard. Simply covering it up won’t stop it from spreading. Use a mould-killing solution and ensure proper ventilation to prevent future outbreaks.
Get your ceiling repairs done right with Sydney Wide Plastering. Avoid costly mistakes and trust our skilled plasterers Sydney to deliver top-quality ceiling repair services. Call us today at 0405 847 224 or submit our online form to book your repair.
