Painting your home is one of the most effective, easy and affordable ways to refresh your property. However, some homeowners come across mould during this process and are unsure of whether to halt the painting process altogether or continue on. Mould can be hazardous to our health, which is why tackling it must be done safely and securely to prevent the issue from worsening. Painting over the mould on your walls may seem like an easy solution, however, it is only superficial and ignores the larger issue at hand.

All mould issues should be addressed by professionals and then painting can ensue once remediation has been completed and the area is deemed safe. Read on to learn more about painting over a mould.

Why You Shouldn’t Paint Over Mould

Painting over the mould only neglects the various serious problems at hand and delays the inevitable. Additionally, it continues to put the health of yourself and your family at risk. When you paint over the mould, you are merely masking the dangerous problem and allowing it to grow. Not only does painting over it do nothing to fix the issue, but it also allows the mould to saturate material, especially drywall, which will eventually have to be completely removed and replaced.

What Can Happen If You Paint Over Mould

Painting over the mould accelerates its growth and will not eliminate it. Paint may be mould-resistant, however, it cannot complete combat it and operates proactively instead of reactively. Mould will eventually return, ruining the new paint application by causing bubbling, chipping or cracked paint. In the end, this can cost much more to restore than to have hired mould remediation services at the start. 

How To Prevent Mould Before Painting Project

Mould does not have to prevent your paint project from running smoothly, it just may delay it. That is why you should hire professional remediation to eliminate the mould and take proper measures to prevent it from returning after your new paint job. These steps will help keep your family and the structure of your home safe and secure. To prevent mould from returning after remediation, apply the following measures:

  • Mould-resistant primer: Mould-resistant primer is important to prevent mould from returning, especially in rooms with more moisture, such as the kitchen or the bathroom.
  • Control humidity: Keeping your home dry and well-ventilated can prevent mould from growing and returning. You can do this by investing in dehumidifiers and placing them in the rooms. Make sure any areas where previous leaks were are thoroughly dried. 


Demiri Painting & Decorating residential painting services are fully licensed and insured. One of the most reputable painting services in Toronto, we are committed to providing professional service and great quality painting services. Our interior painting service can update your home to impress you and guests alike! To learn more about our residential painting services or for a free quote.