If you’ve ever looked at a worn-out patio, cracked garage floor, or aging basement and wondered whether it could be revived with a fresh coat of paint, you’re not alone. Painted concrete is an affordable and stylish way to breathe new life into old surfaces. But before jumping into a DIY project, it’s important to know the right way to handle aged concrete so your results are smooth, durable, and long-lasting.
In this guide, we’ll explore whether old concrete can be painted, what challenges you might face, and the exact steps to take for a successful outcome.
Why Choose to Paint Old Concrete?
Old concrete often looks stained, cracked, or just plain dull after years of use. Instead of tearing it out and pouring new concrete—which can be expensive and time-consuming—painting offers a faster and more budget-friendly option.
Here’s why people choose painted concrete for older surfaces:
Aesthetic Upgrade: It hides imperfections and gives the area a refreshed look.
Budget-Friendly: Painting costs far less than replacing concrete.
Protective Layer: Quality concrete paints seal the surface and prevent moisture and wear.
Custom Style: Choose any color or finish to match your space and decor.
Is It Possible to Paint Old Concrete?
Yes, you can paint old concrete. But unlike painting new or smooth concrete, older surfaces require more preparation. Age, cracks, stains, and moisture are all factors you’ll need to address before getting started. The condition of your concrete will determine how much effort goes into the prep work—but with the right approach, you can get excellent, long-lasting results.
Common Challenges with Old Concrete
Before diving into the project, be aware of the unique challenges that come with older surfaces:
Cracks and Holes: These need to be patched before painting.
Stains and Oil Spots: Contaminants can prevent the paint from bonding.
Moisture Problems: Damp surfaces can cause bubbling or peeling.
Uneven Texture: Years of wear may leave pitting or rough areas.
Old Paint or Sealer: Any existing coating that’s peeling or cracked must be removed.
Steps to Paint Old Concrete for the Best Results
- Evaluate the Condition
Start by checking the surface closely. Look for:
Deep or hairline cracks
Stubborn stains (oil, paint, mold)
Areas with visible moisture
Flaking paint or loose material
Identifying these problems early helps you know what kind of repair or prep work is needed.
- Deep Clean the Surface
Old concrete holds years of grime, oil, and dirt, so a good cleaning is essential.
What to Use:
A stiff scrub brush or broom
Concrete cleaner or degreaser
A power washer (especially for outdoor areas)
Thoroughly scrub the surface and rinse with clean water. Let it dry for at least 24–48 hours before moving to the next step. For indoor surfaces like basements or garages, use fans or dehumidifiers to speed up the drying process.
- Repair Cracks and Holes
Painting over damaged areas won’t work. The paint will eventually crack and peel if the surface underneath isn’t sound.
How to Fix:
Use concrete patching compound for larger gaps or holes.
For thin cracks, use concrete filler or sealant.
Allow repairs to cure fully before sanding or priming.
Once the patch has dried, sand the area so it’s level with the rest of the floor.
- Check for Moisture
Concrete is a porous material, and moisture can cause paint to lift or peel.
Do a Simple Moisture Test:
Tape a piece of plastic wrap to the surface.
Leave it for 24 hours.
If condensation forms inside the plastic, your surface is holding moisture.
If that’s the case, consider using a moisture-blocking primer or fixing the moisture issue before painting.
- Etch or Sand the Surface
Smooth or sealed concrete won’t allow paint to stick properly. You’ll need to roughen the surface.
Use a concrete etching solution for larger areas. This opens the pores of the concrete.
Alternatively, sand the area with coarse grit sandpaper or a floor sander.
After etching or sanding, rinse the surface thoroughly and let it dry completely.
- Apply a Concrete Primer
Older concrete absorbs paint unevenly. A primer helps ensure better coverage, bonding, and longer-lasting results.
Choose a primer specifically designed for concrete or masonry. Apply it with a roller or brush and let it dry as directed—usually between 8 to 24 hours.
- Pick the Right Paint for Old Concrete
Not all paints are created equal. For older concrete, go with paint made specifically for masonry and flooring.
Top Paint Options:
Epoxy Paint: Very durable and ideal for garages or basements.
Acrylic Concrete Paint: Easier to apply and works well for patios or walkways.
Concrete Stain: Penetrates the surface and gives a more natural, textured look.
For areas with heavy foot traffic or exposure to the elements, epoxy-based products offer the best durability.
- Paint the Surface
Now it’s time to apply the paint.
Tips for Success:
Start by cutting in around the edges with a brush.
Use a roller for larger sections.
Apply two thin coats instead of one thick coat.
Allow the first coat to dry fully before applying the second.
Painting in thin, even layers helps avoid peeling or bubbles.
- Add a Sealer (Optional but Recommended)
Sealing the painted surface adds an extra layer of protection—especially in high-traffic or outdoor areas.
Benefits of Sealing:
UV protection (great for patios and driveways)
Moisture resistance
Increased durability
Use a clear, non-yellowing sealer designed for concrete. Apply with a roller and follow the manufacturer’s drying instructions.
Mistakes to Avoid
When painting old concrete, avoid these common pitfalls:
Skipping surface prep: Dirty or damaged surfaces will cause peeling.
Not checking for moisture: Wet concrete will make the paint fail.
Using the wrong paint: Wall paint won’t stick or hold up on concrete.
Applying thick coats: Leads to uneven drying and cracking.
Ignoring cracks: They’ll only get worse over time if left untreated.
Tips for Indoor vs Outdoor Concrete
Indoor Spaces (Garages, Basements, Interior Floors):
Choose low-odor, low-VOC paints.
Add anti-slip additives for safety.
Use mats or rugs in high-use areas.
Outdoor Areas (Patios, Sidewalks, Driveways):
Use UV-resistant, waterproof paints.
Make sure the surface drains well.
Reseal every few years for durability.
Maintaining Painted Old Concrete
Once your surface is freshly painted, you’ll want to keep it looking good:
Sweep regularly to remove dirt and debris.
Use a mild cleaner for mopping—avoid harsh chemicals.
Reapply sealer every 2–3 years for added protection.
Fix chips and cracks as soon as they appear.
Frequently Asked Questions
Can I paint concrete that’s 20+ years old?
Yes, as long as the surface is in decent shape. Thorough prep is key.
Will the paint stick if there’s old paint on the surface?
Only if the old paint is in good condition. Peeling or cracked paint must be removed first.
How long will it last?
With proper prep and maintenance, indoor painted concrete can last 5–10 years. Outdoor surfaces typically last 2–5 years before needing a refresh.
Final Thoughts
Painting old concrete is more than just a cosmetic fix—it’s a smart way to extend the life of your surfaces while giving them a stylish upgrade. Whether it's an aging garage floor or a weathered patio, painted concrete can look fresh and last for years when done right.
Just remember:
Clean thoroughly
Repair damage
Etch or sand the surface
Prime properly
Use the right paint
Apply thin coats
Seal for protection
By following these best practices, you’ll get a painted concrete surface that’s not only beautiful but built to last.