Learn How to Control Mold and Mildew Before House Painting

Before you start painting your house, controlling mold and mildew is important. Mold and mildew can damage surfaces and affect how well paint sticks. Ignoring these problems can lead to poor results and quicker deterioration. Continue reading below to learn more about the simple tips to deal with mold and mildew. 

What Causes Mold and Mildew Buildup on Surfaces?

Mold and mildew buildup on surfaces is a common issue in many homes. Here are the main reasons for mold and mildew growth:

  • Humidity: High humidity levels create a perfect environment for mold and mildew.
  • Poor Ventilation: Lack of airflow can cause moisture to accumulate on surfaces.
  • Water Leaks: Leaky roofs, pipes, or windows can lead to damp areas where mold can grow.
  • Condensation: Cold surfaces like windows or pipes can attract condensation, leading to mold.
  • Flooding: After a flood, lingering moisture can result in mold and mildew growth.
  • Organic Materials: Surfaces like wood or paper provide food for mold and mildew to thrive.

Tips for Controlling Mold and Mildew Before Painting

Controlling mold and mildew before painting is essential if you want the applied paint to adhere better to the surface of walls, ceilings, or floors. Here are some tips to help you prepare your surfaces properly:

1. Clean Thoroughly

Before painting, make sure to clean the surfaces with a mixture of water and mild detergent. This will remove dirt and mildew so that you can get a clean base for the paint.

2. Use Mold-Resistant Products

Choose mold-resistant primers and paints for your project. These products help prevent mold and mildew growth and ensure a longer-lasting finish.

3. Fix Leaks and Moisture Issues

Identify and repair any leaks or moisture problems in your home. This will prevent water from seeping into surfaces and creating an environment for mold.

4. Improve Ventilation

Make sure your home has proper ventilation. Use exhaust fans in bathrooms and kitchens to reduce humidity and keep air flowing.

5. Apply a Mildew-Inhibiting Solution

Use a mildew-inhibiting solution on the surfaces before painting. These solutions kill existing mold spores and help prevent new growth.

6. Keep the Area Dry

After cleaning and preparing the surfaces, keep the area as dry as possible before painting. This helps to ensure that mold and mildew do not return before you apply the paint.

Do You Need Professional Help for Mold and Mildew Control

Do You Need Professional Help for Mold and Mildew Control?

Preventing and controlling mold and mildew buildup can be challenging to handle on your own. Here are some reasons why hiring a professional might be the best choice for controlling mold and mildew before painting:

  • Extensive Mold Growth: If mold covers a large area, it’s best to call a professional. They have the tools and expertise to handle significant infestations safely.
  • Health Concerns: Mold can cause health issues like allergies and respiratory problems. Professionals can ensure the mold is removed thoroughly, reducing health risks.
  • Hidden Mold: Mold can grow in hidden places like behind walls or under floors. Professionals can find and remove mold in hard-to-reach areas.
  • Recurring Mold Problems: If mold keeps coming back, it might be due to underlying issues that need professional attention. Experts can identify and fix these problems.
  • Proper Equipment: Professionals have specialized equipment and protective gear. This ensures effective mold removal and keeps your home safe.
  • Peace of Mind: Hiring a professional gives you confidence that the job is done correctly. This can save you time and stress, especially if you’re planning to paint your home.

Tips for Hiring the Best Professionals for Mold and Mildew Control

Tips for Hiring the Best Professionals for Mold and Mildew Control

Hiring the best professionals for mold and mildew control ensures that there will be little to no issues during the control process and before painting the surfaces. Below are some tips to help you find the right experts:

1. Check Credentials

Make sure the professionals you hire are licensed and certified. This guarantees they have the necessary training and knowledge to handle mold and mildew safely.

2. Read Reviews

Look for reviews and testimonials from previous customers. This can give you an idea of the quality of service you can expect from the company.

3. Ask for References

Request references from the professionals you are considering. Contacting previous clients can provide insight into their experiences and satisfaction with the work.

4. Get Multiple Quotes

Obtain quotes from several companies to compare prices and services. This helps you find the best value for your money without compromising on quality.

5. Inquire About Experience

Ask about the professionals’ experience with mold and mildew control. More experienced companies are likely to handle complex situations more effectively.

6. Verify Insurance

Ensure the company has proper insurance coverage. This protects you from any liability in case of accidents or damage during the mold removal process.


Controlling mold and mildew before painting is key to achieving a lasting and beautiful finish. If needed, professional help is available to tackle extensive or hidden mold problems. Taking the steps and tips we mentioned above will help you maintain a healthier and more attractive living space.

If you need professional services for painting after mold and mildew control, you may contact us at Custom Painting, Inc. at 925-686-0903 or fill out our contact form.