Peeling exterior trim can make even the prettiest home look run down, and believe me, I’ve been there! When I noticed our trim around the garage door, porch pillar, and front doors flaking away, I was worried we’d have to scrape and sand every inch. Thankfully, I found a solution that bought us a few extra years of curb appeal without all the elbow grease!

If you’re working on refreshing your home’s exterior, you might also love my post about How to Install a Flagstone Walkway. It’s packed with ideas to make your home shine!
Why Exterior Trim Peels and How to Fix It
Wood trim is charming, but years of exposure to the elements can lead to cracking, flaking, and peeling paint. While a full-scale scrape and sand job is inevitable at some point, using a product like Rust-Oleum’s Zinsser Peel Stop Plus can buy you time and make the process much simpler.
Here’s how we tackled our peeling trim in just a few simple steps:
Materials Needed
- Zinsser Peel Stop Plus (High Build Binding Primer)
- Exterior Paint (We used Sherwin Williams Perfect Greige, but choose a color that suits your home)
- Mild Detergent (For cleaning the trim)
- Water (For rinsing the trim after cleaning)
- Painter’s Tape (To protect adjacent surfaces)
Tools Needed
- Paintbrushes (For detail work and hard-to-reach areas)
- Small Roller (Optional, for faster application of primer and paint on larger surfaces)
- Bucket or Spray Bottle (For cleaning the trim)
- Rags or Sponge (For washing and drying the trim)
- Drop Cloths or Plastic Sheeting (To protect surrounding areas from drips)
Step-by-Step Instructions: Painting Exterior Trim That’s Peeling
1. Inspect the Trim
Look for areas where the paint is peeling or flaking. Clean the surface with a mild detergent and let it dry completely.
2. Apply Zinsser Peel Stop Plus
This thick, water-based primer locks down peeling edges and creates a smooth surface for painting. Apply it with a brush or roller. No need to scrape or sand beforehand!
3. Let It Dry
Allow the primer to dry as per the manufacturer’s instructions. This ensures the top coat adheres perfectly.
4. Paint Over the Primer
Once the primer is dry, apply your chosen exterior paint. We used Sherwin Williams Perfect Greige to coordinate with our brick and window trim.
5. Enjoy the Results!
Your trim will look refreshed and polished, adding years to its life without the back-breaking prep work.
Where to Buy Peel Stop Plus
You can find Peel Stop Plus at The Home Depot (US and Canada) or Amazon. (List contains affiliate links.)
- The Home Depot (US)
- The Home Depot (Canada)
- Amazon (US)
- Amazon (Canada)

FAQs About Painting Peeling Exterior Trim
This product is best for wood, but it can also be used on masonry and other porous materials. Always check the label for compatibility.
This method can extend the life of your exterior paint by several years, though the longevity depends on weather conditions and maintenance.
No, the product creates a smooth surface, eliminating the need for additional sanding.
Yes, Peel Stop Plus is low-VOC and safe for indoor and outdoor use.
More DIY Projects
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- How to Install a Flagstone Walkway
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- How to Paint Exterior Trim That’s Peeling Without Scraping or Sanding
How to Paint Exterior Trim That's Peeling Tutorial
Learn how to paint exterior trim that’s peeling without scraping or sanding. Use this easy method to refresh your home’s curb appeal today!
Materials
- Zinsser Peel Stop Plus (High Build Binding Primer)
- Exterior paint (e.g., Sherwin Williams Perfect Greige or your chosen color)
- Mild detergent (for cleaning the trim)
- Water (for rinsing the trim)
- Painter’s tape
Tools
- Paintbrushes
- Small roller (optional, for larger areas)
- Bucket or spray bottle (for cleaning)
- Rags or sponge (for washing and drying)
- Drop cloths or plastic sheeting
Instructions
- Inspect and Clean the Trim
- Look for areas of peeling or flaking paint.
- Mix mild detergent with water in a bucket or spray bottle.
- Clean the trim thoroughly with a rag or sponge to remove dirt, grease, and peeling flakes.
- Rinse with clean water and let dry completely. - Protect Adjacent Surfaces
- Use painter’s tape to cover areas like glass, brick, or siding near the trim.
- Lay down drop cloths to protect the ground or surrounding surfaces from drips. - Apply Zinsser Peel Stop Plus
- Stir the primer thoroughly.
- Using a brush or small roller, apply a generous coat of Zinsser Peel Stop Plus directly over peeling paint.
- Ensure all edges of peeling paint are well covered to "lock down" the loose areas.
- Let it dry according to the product instructions (typically 2-4 hours). - Paint Over the Primer
- Once the primer is fully dry, apply your chosen exterior paint.
- Use a brush for precise areas and a small roller for larger surfaces.
- Apply 1-2 coats as needed, allowing proper drying time between coats. - Clean Up
- Remove painter’s tape while the paint is still slightly tacky to avoid peeling.
- Wash brushes and tools immediately with soap and water. - Enjoy Your Refreshed Trim
- Step back and admire your freshly painted exterior trim!
Painting peeling exterior trim doesn’t have to be a nightmare. With the right products and a simple process, you can give your home a polished look without hours of scraping and sanding. This quick fix has made such a difference for our home, and I’m sure it can for yours, too!
What’s the trickiest part of your outdoor painting project? Let me know in the comments—I’d love to help!











