Mold and mildew are common household problems, especially in damp or poorly ventilated areas like bathrooms, basements, and kitchens. Many homeowners wonder if simply painting over mold is a quick fix. The truth is: while paint can cover stains temporarily, it won’t solve the underlying issue. Here are the most important FAQs about painting over mold or mildew.
1. Can I paint over mold or mildew?
No. Painting over mold or mildew only hides the problem temporarily. The spores will continue to grow under the paint, eventually causing bubbling, peeling, and health risks.
2. Why is it dangerous to paint over mold?
Mold releases airborne spores that can affect indoor air quality and cause:
- Allergies and asthma flare-ups
- Respiratory issues
- Musty odours
Painting over mold doesn’t stop these risks—it only conceals them for a short time.
3. What should I do before painting a moldy wall?
- Identify and fix the source of moisture (leaks, humidity, poor ventilation).
- Clean the area with a mold-killing solution.
- Allow surfaces to dry completely.
- Apply a mold-resistant primer before repainting.
👉 Explore Randall’s paint collectionfor primers designed to prevent mildew growth.
4. What paint is best to prevent future mold or mildew?
Choose paints labeled “mildew-resistant” or designed for high-moisture areas (bathrooms, basements, kitchens). Semi-gloss and satin finishes are easier to clean and resist moisture better than flat finishes.
5. Can primer alone stop mold?
No. Primer can help block stains but will not kill active mold. The mold must be removed first, then a mildew-resistant primer can help prevent recurrence.
6. How can I prevent mold from coming back after painting?
- Improve ventilation with fans or dehumidifiers.
- Use caulking to seal cracks around sinks, tubs, and windows.
- Choose mildew-resistant paint for high-humidity rooms.
7. Should I DIY mold removal or call a professional?
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Small spots (less than 10 sq. ft.) can often be cleaned safely by homeowners.
- Large infestations or recurring mold issues should be handled by professionals.
👉 Use our Painter Order Formto connect with experts who can handle tricky projects.
8. What if the mold keeps coming back?
Persistent mold indicates a bigger issue, such as water leaks or inadequate ventilation. In these cases, fixing the root cause is just as important as repainting.
9. Can Randall’s help me choose the right products for mold-prone areas?
Yes! We offer:
- Mold- and mildew-resistant paints and primers
- Expert advice on high-moisture conditions
- Professional painting referrals through our services
- Personalized support via our Contact Us
10. What’s the bottom line on painting over mold?
You should never paint over active mold or mildew. Clean and treat the problem first, then repaint with high-quality, mildew-resistant products for long-lasting results.
Painting over mold is a short-term cover-up, not a solution. With the right prep and products, you can eliminate mold safely and keep your walls protected.
Randall’s has the expertise, supplies, and services you need to keep your home healthy and beautiful.