Peeling Interior Paint? What Canberra Homeowners Need to Know
There’s nothing more frustrating than having your home professionally painted, only to notice the paint starting to peel, flake or bubble not long afterwards.
If you've noticed your interior paint peeling after only a year or two, it's understandable to wonder what has gone wrong.
The good news is that peeling paint usually has a reason behind it. In many cases, it comes down to the condition of the surface, moisture, preparation or the way previous paint coatings were treated.
Here’s what Canberra homeowners should know before simply painting over the problem.
Why does interior paint peel?
Paint needs a clean, sound and suitable surface to bond to. If the surface underneath isn't properly prepared, or if there is an underlying moisture problem, even a good quality paint can eventually lose adhesion.
Some of the most common causes include:
Poor surface preparation
Moisture or condensation
Painting over loose or failing paint
Glossy or contaminated surfaces
Incorrect primer or undercoat
Incompatible existing coatings
Movement or deterioration in the surface underneath
Contaminants such as dust, grease, mould and loose or powdery material can interfere with adhesion. Existing coatings that are already failing can also cause a new coating to fail when painted over.
1. The surface wasn't properly prepared
One of the biggest factors in the life of an interior paint job is what happens before the first coat of paint goes on.
If walls are dusty, dirty, greasy, chalky or have loose existing paint, the new coating may not get the bond it needs.
Preparation can involve much more than simply giving the wall a quick sand.
Depending on the condition of the room, it may include:
Removing loose or peeling paint
Sanding existing surfaces
Filling holes, dents and cracks
Smoothing previous repairs
Cleaning away dirt and grease
Spot priming or sealing areas that need it
Using the appropriate primer or undercoat
This is particularly important in areas such as kitchens, bathrooms, hallways and around doors where surfaces can be exposed to grease, moisture, fingerprints and general wear.
A fresh coat of paint can make a wall look great initially, but if the surface underneath wasn't suitable, problems can show up later.
2. There could be a moisture problem
Moisture is another common reason paint starts peeling or bubbling.
This doesn't necessarily mean you have a major leak. Moisture can come from condensation, poor ventilation, plumbing issues or water getting into the building through another area.
Bathrooms and laundries are obvious places to look, but moisture problems can also occur around windows, ceilings and walls adjoining wet areas.
If paint is repeatedly peeling in the same location, it's worth finding out why before repainting.
Simply scraping the paint off and applying another coat may make the wall look better for a while, but if moisture is still affecting the surface, the problem can return.
3. The old paint underneath may already have been failing
Sometimes the new paint isn't the real problem.
If an older coating underneath is loose, brittle or peeling, a new coat applied over the top can only be as stable as the surface beneath it.
Eventually, the old coating can let go — taking the new paint with it.
This is why professional painters don't simply paint over every existing surface. The condition of the existing coating needs to be assessed first.
Dulux recommends removing failing paint and addressing the condition of the substrate before repainting rather than relying on a new coating to hold an unstable surface together.
4. The surface may have been too glossy or contaminated
Some older Canberra homes have multiple layers of paint built up over the years. You may also find older enamel finishes on doors, trims and other areas.
A new coating doesn't automatically adhere well to every existing finish.
Very smooth or glossy surfaces may need to be properly prepared to provide a suitable surface for the new coating. Dust, grease, wax, mould and other contaminants can also interfere with adhesion.
This is one of those situations where the wall may look perfectly fine before painting, but the problem only becomes obvious months later.
5. The wrong primer or paint system may have been used
Not every surface should be treated in exactly the same way.
Fresh plaster, previously painted walls, stained surfaces, timber, glossy finishes and repaired areas can all have different requirements.
Primer or sealer may be needed in certain situations to help stabilise the surface, improve adhesion or prevent stains from affecting the finish.
The important thing isn't simply choosing an expensive paint. It's using a suitable paint system for the surface and conditions.
That's why we don't believe there is one product or one approach that is right for every painting project.
Why can this happen in Canberra homes?
Canberra homes experience some significant changes in temperature throughout the year.
Cold winter temperatures, dry conditions, heating and seasonal changes can all affect the materials inside a home.
That doesn't mean Canberra's climate automatically causes interior paint to peel. Rather, existing weaknesses in a surface can become more noticeable as the building and its materials respond to changing conditions.
For example, small cracks or weak areas in an existing coating may gradually develop into more noticeable peeling or flaking.
What should you do if your paint is peeling?
The first thing we'd recommend is don't just paint over it.
Take a closer look at where and how the paint is failing.
Ask yourself:
Is it happening in one particular room?
Is it close to a bathroom, kitchen or window?
Does the paint feel soft or damp underneath?
Is it peeling in large sheets?
Is the old paint coming away with it?
Are there stains or discolouration around the affected area?
Is the problem occurring in several different rooms?
These clues can help identify whether you're dealing with a moisture issue, adhesion problem or deterioration of the existing coating.
If moisture is suspected, that should be investigated and addressed before repainting.
Can peeling paint simply be repaired?
Often, yes — but the repair needs to address the cause.
Depending on the situation, a professional repair may involve removing loose paint, sanding the affected area, filling and smoothing damaged surfaces, applying the appropriate primer or sealer and then repainting.
In some cases, a larger area may need to be prepared rather than just touching up the visible peeling.
The aim isn't simply to make the peeling disappear. It's to create a sound surface so the new coating has the best possible chance of performing properly.
How can you help prevent peeling paint?
If you're planning an interior repaint, good preparation is one of the best places to start.
Before painting, make sure:
The existing paint is sound
Loose, flaking or failing coatings should be dealt with rather than simply covered.
Surfaces are clean
Dust, grease and other contaminants can affect adhesion.
Repairs are properly prepared
Filled areas should be sanded smooth and treated appropriately before painting.
Moisture problems are addressed
Don't use paint to hide an ongoing leak, dampness or condensation problem.
The right products are used
Different surfaces and conditions can require different primers, sealers and topcoats.
What if your home was only painted a year ago?
If you've noticed peeling after only a year, it's worth finding out what caused it rather than assuming you simply need another coat of paint.
If the painting work was recently completed by a professional, contact the painter who carried out the work. They may be able to inspect the affected areas and determine whether the issue relates to the original coating, the surface underneath or another issue such as moisture.
At Prowse's Painting, we take the time to look at the condition of the surfaces before we start painting. Proper preparation is an important part of achieving a quality finish, particularly when working in older Canberra homes or homes with existing coatings that have built up over many years.
Thinking about repainting your Canberra home?
Whether you're refreshing one room or repainting your entire home, the quality of the finished result starts well before the paint goes on the wall.
At Prowse's Painting, we work with Canberra homeowners on interior painting projects, including fully furnished homes, heritage properties and high-end residences.
We take care of protecting your home, preparing the surfaces and keeping the work area organised throughout the project. You don't necessarily need to move out while your home is being painted.
If you're unsure whether your peeling paint needs a simple repair or a more complete repaint, we're happy to take a look and provide some honest advice.
Looking for professional residential painters in Canberra? Visit our Interior Painting page or Contact Prowse's Painting to arrange an obligation-free assessment.
A final tip
Paint peeling after one year isn't something you should simply accept as normal.
In most cases, there's a reason the coating has failed. Finding that reason before repainting can save you from fixing the same problem twice — and help your next paint job last much longer.
