Is there a need to repair your home after a storm? Is the paint on your outside walls fading or chalking? Or do you want to change the look of your home exteriors? If you have these questions in your mind, then you’ve found the right article.

Boysen experts are here to guide you on your repainting project. In this article, we’ve summarized into five easy points everything you need to know before repainting exterior walls.

1. Plan, Plan, Plan 

Start the plan by examining the condition of your home exteriors to spot the problems you need to address first before repainting.  Get professional help to guide you in renovating your home if you have to. After the home inspection and expert consultation, make a list of things you have to prepare for the painting job.

Before heading to a hardware store, do your research. What colors will look good for your home exteriors? What kind of paint will you use? How much paint will you need?  It’s a good thing there’s the Boysen app to help you answer all these painting questions. Download the Boysen App from Google Play Store or App Store.

2. Prepare all the tools and materials you’ll need

After the planning stage is complete, it’s time to buy the materials you will need to get the job done.

Cleaning tools for painting


3. Clean up

The truth is you’ll spend more time cleaning and prepping the exterior wall surfaces than the actual painting. Remove dirt, mud, silt, or grease by scrubbing the surface with mild soap and water.  Rinse off soap residue thoroughly.

4. Prep the surface

After cleaning and drying the walls, assess the condition of the surface. Is the old paint peeling? Does the surface have mold or mildew? If you notice one of these issues, you have to treat the surface before repainting.  Below you’ll find some common painting problems and steps on treating them.

If the paint film does not adhere to the surface anymore, we suggest you scrape off all the loose, scaling, peeling, or flaking paint.  Then, sand the surface to get a smooth finish. Clean the surface with a damp clean rag to remove dust and other contaminants.

Paint on exterior walls is more prone to chalking because of UV light exposure. Our paint experts swear by the BOYSEN Chalk Blocker B-7304 for treating chalky surfaces.  Using a brush or roller, apply the Chalk Blocker on a clean surface. Then, wait for two hours for it to dry before applying the putty and topcoat.

If the chalking is severe, it’s best to fully scrape off the paint.

Mold and mildew are those dark unsightly patches on your exterior walls. They can spread on outside walls especially during the rainy season because they feed on moisture to survive and thrive. Put an end to mildew infestation by applying a bleach solution (one-part laundry bleach to three parts water) to the surface. Let it stay for 24 hours before rinsing it off. Then, dry it off completely before repainting.

5. Follow the recommended system of painting

Don’t take shortcuts. Do it like a pro and follow the recommended system of painting. After the prepping, apply primer on bare surfaces. Then, cover minor surface imperfections and hairline cracks with BOYSEN® Acrytex™ Cast #1711. When you see large cracks, dents, gaps, or holes, consult a construction professional so he/she can suggest the best method to repair your walls. Finish your repainting job with a durable topcoat.

We are here to help you learn more about paints and painting. If you like to read, subscribe to this blog and get more of our painting tips and ideas. If you need help with your repainting project, you may also talk to our technical team by calling this number (02) 363-9738 local 417 to 418 during office hours, or write an email to



Yasmin Aguila is a copywriter at Boysen Paints Philippines. Interested in making paints fun and relatable, she produces quizzes and painting ideas for this blog. She claims that she is obsessed with yellow, but she always dresses in black from head to toe.

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