Damaged walls are common in Melbourne homes, especially with changing weather, older buildings, and everyday wear and tear. Cracks, dents, and holes can make your home look tired, even if the rest of the room is clean and well‑maintained. Fortunately, most wall damage can be repaired quickly with the right plastering techniques. In this guide, you’ll learn how to fix cracks, holes, and damaged walls, along with expert plastering tips used by Melbourne professionals.
Why Wall Damage Happens
Wall damage can occur for many reasons. For example, small cracks often appear because of temperature changes or building movement. Meanwhile, holes usually come from door handles, furniture, or accidental impact. In older Melbourne homes, plaster can weaken over time, which leads to crumbling or flaking surfaces. Understanding the cause helps you choose the right repair method.
How to Fix Small Cracks in Walls
Small cracks are the most common type of wall damage. Thankfully, they are also the easiest to repair.
Steps to Fix Small Cracks
- Clean the crack to remove dust.
- Use a flexible filler or plaster compound.
- Smooth the surface with a scraper.
- Allow it to dry completely.
- Sand lightly for a smooth finish.
- Prime and paint the area.
Because Melbourne’s weather changes quickly, using a flexible filler helps prevent cracks from returning.
How to Repair Larger Cracks
Larger cracks need more attention. They often appear in older homes or areas with structural movement.
Repair Method
- Open the crack slightly with a scraper.
- Fill it with a strong plaster compound.
- Apply mesh tape for extra strength.
- Add a second coat of plaster.
- Sand and smooth the surface.
Mesh tape is important because it stops the crack from reappearing.
How to Fix Holes in Walls
Holes can range from small dents to large openings. Each size requires a different approach.
Small Holes (Nail Holes, Pin Holes)
- Fill with lightweight filler.
- Smooth and sand.
- Prime and paint.
Medium Holes (Door Handles, Accidental Impact)
- Use a patching kit or mesh patch.
- Apply plaster over the patch.
- Sand and finish.
Large Holes
For large holes, it’s best to replace the damaged plasterboard section. This involves cutting out the area, installing a new piece, and plastering over it. Because this requires skill, many homeowners prefer hiring a professional plasterer.
How to Repair Water‑Damaged Walls
Water damage is common in Melbourne due to roof leaks, plumbing issues, and storms.
Repair Steps
- Identify and fix the source of the leak.
- Remove damaged plaster.
- Dry the area completely.
- Apply new plasterboard if needed.
- Plaster, sand, and repaint.
Never plaster over wet or damp surfaces, as this will cause mould and peeling.
When to Call a Professional Plasterer
Although small cracks and holes are easy to fix, some situations require expert help. For example:
- Large cracks
- Repeated cracking
- Water damage
- Sagging ceilings
- Crumbling plaster
- Full‑room resurfacing
Professional plasterers ensure a smooth, long‑lasting finish that blends perfectly with the rest of your wall.
Internal Links (Add These to Boost SEO)
You can link to your own pages like:
- Plastering Services Melbourne
- Interior Painting Tips
- Renovation Services Melbourne
- House Painting Cost Guide
Internal links help Google understand your website structure.
External Authority Links
These trusted sources improve credibility:
- Australian Building Codes Board: https://www.abcb.gov.au
- Dulux Australia: https://www.dulux.com.au
FAQs
Why do cracks keep coming back?
Cracks return when the building moves or the wrong filler is used. Flexible compounds help prevent this.
Can I paint over cracks without repairing them?
No. Paint will not hide cracks and may make them more visible.
How long does plaster take to dry?
Most plaster dries within 24 hours, depending on thickness and temperature.
Is plastering messy?
Professional plasterers protect your floors and clean up after the job.
Get a Professional Plastering Quote
If your walls need expert repair, Expert Paint Melbourne can help.
We fix cracks, holes, water damage, and all types of plastering issues with smooth, long‑lasting results.