Updated 08 May 2026
Our commercial painting professionals are trained to overcome various problems in their day-to-day work. The aim of this series of blog posts is to offer assistance with common paint problems through the experience we have gained.
To start this off, I will look a common problem with painting: cracking and flaking paint.
What Does Cracking and Flaking Paint Mean?
Cracking and flaking paint is typically the splitting of a dry paint film through at least one coat. Eventually this will lead to the complete failure of the paint. Early signs of the problem include hairline cracks followed by flaking and paint chipping.
Possible root cause of the problem include:
- Low quality paint that has inadequate adhesion and flexibility.
- Painting under cool or windy conditions that make oil based (enamel) paints dry too fast.
- Poor surface preparation, especially when the paint is applied to bare wood without priming.
Programmed’s Recommended Solution
The right fix depends on how deep the cracking goes. Here is what our commercial painting contractors recommend.
If cracking does not go down to the substrate:
- Remove loose and flaking paint with a scraper or wire brush.
- Sand the area lightly to feather the edges.
- Prime with an acrylic sealer binder before applying your top coat.
Many paints on the market claim to be self-priming, but our professionals still recommend using a sealer primer on affected areas before top-coating for a longer-lasting result.
If cracking goes all the way down to the substrate:
- Remove all existing paint by scraping, sanding, and using a heat gun.
- Wear gloves, a dust mask, and safety glasses throughout this process.
- Apply a primer suited to the surface, followed by a premium-grade acrylic top coat appropriate for the area, whether internal or external.
Before starting either job, check that you have adequate personal protective equipment on hand.
Get Help from Commercial Painting Experts
Cracking and flaking paint most often result from poor surface preparation, low-quality paint, or unfavourable conditions during application. The fix depends on how deep the damage goes, from feathering and priming surface-level cracks to stripping back to the substrate entirely. Getting these steps right the first time is what prevents the problem from coming back.
At Programmed Commercial Painting, our teams bring decades of hands-on experience to commercial and large-scale painting projects, backed by rigorous safety standards and quality workmanship.
Whether you’re managing a one-off repair or a planned maintenance project, we can help you protect and maintain your property with confidence.
Contact us today for a consultation or a tailored quote from our commercial painting contractors.
Cracking and Flaking Paint Remedy FAQs
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Why is my paint peeling and cracking?
Paint peels and cracks for several reasons, including poor surface preparation, low-quality paint, or application in unsuitable weather conditions. Painting over bare wood without a primer or using an inflexible paint product are among the most common causes.
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Can you paint over cracked and peeling paint?
In most cases, no. Painting over cracked or peeling paint without proper preparation will only delay the problem. The new coat will likely crack and peel in the same areas. The surface needs to be stripped back, primed, and then repainted for a lasting result.
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When should you worry about paint cracks?
Hairline cracks are common and often cosmetic. Wider or deeper cracks, particularly those that extend through multiple coats down to the substrate, need attention sooner rather than later. Left untreated, they allow moisture to get in and can damage the underlying surface.
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Does cracked paint mean there is mould?
Not always. Cracked paint does not automatically indicate mould, but it can allow moisture to enter walls or timber, creating conditions for mould growth over time. If you notice discolouration or musty odours alongside cracking, it is worth investigating further before repainting.
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Can I fix peeling paint myself?
For small areas, yes. With the right tools, such as a scraper, sandpaper, a sealer primer, and a quality acrylic top coat, many property owners can manage minor repairs. For larger or more widespread damage, or surfaces exposed to harsh conditions, a professional assessment will give you a more reliable outcome.
