How To Paint A Garage Door: Complete Homeowner’s Guide
Painting your garage door is a slightly different process from painting your regular walls.
Your garage door has panels and grooves that regular walls don't have, and if it's steel, you'll also have to factor in rust and oxidation.
Plus, your garage door needs to be able to open and close, so you’ll also need to make sure not to gum the panel seams and the hinges of the door.
And then there's choosing the right paint and primer, safety prep, and a few other things to take note of.
This might sound slightly scary, but don't worry — it's less complicated than it sounds, and we're here to guide you through the entire process, from start to finish.
Let's begin.
Tools & Equipment

As with any project, the first step is to gather your tools and equipment.
Painting garage doors is slightly different from painting normal walls, but you'll still need many of the same tools and equipment.
Here's the list of shared tools and equipment that you need to get ready:
- Angled paint brush
- Roller
- Primer
- Paint
- Paint tray
- Painter's tape
- Drop cloth
- Sandpaper
- Ladder
- Filler (for repairs)
- Cleaning supplies: Mild detergent, sponge or scrub brush, water, and trisodium phosphate (TSP)
And here are the additional tools that you'll need specifically for painting garage doors:
- Wire brush
- Utility knife (to score along seams and hinges)
Step 1: Clean Your Garage Door

As with any painting project, cleaning is always the first step to get rid of dust, dirt, and debris that will prevent your paint from adhering properly.
The cleaning process for garage doors is the same as with regular walls.
Scrub with your mild detergent solution (1/4 cup of mild detergent with a gallon of warm water) first
Then, for oxidation, you’ll need a second round of scrubbing with your TSP solution. And if it’s mold or mildew, treat it with a bleach solution by pouring the solution over the affected areas, letting it sit for 5-10 minutes, and then rinsing it off.
Next, scrape off loose or flaking paint, and if there’s any rust, scrape it off with your wire brush.
Finally, sand your garage door to smooth it out and help your paint cling better to the surface.
Step 2: Repairing Your Garage Door
You can’t paint over holes, cracks, or dents. Or rather, you can, but it’ll either be very ugly or likely lead to premature paint failure.
So after cleaning, the next step is to repair any damage.
Fixing cracks and holes is relatively straightforward — just fill them up with the appropriate filler and sand smooth once dry.
For dents, try to push the dent from the other side first to try to straighten it out. If that doesn’t work, then you’ll simply have to apply an auto body filler.
Step 3: Priming
Priming isn't always necessary, but it often is.
The only time when you won't need to prime is when your current paint is in good condition and the new color you're painting over isn't too different from the current paint.
Otherwise, if your new color is dramatically different from the current paint or you're painting over a glossy finish, you'll need to apply primer.
In addition, here are other surface-specific priming guidelines:
- Metal: If you're making a big color change or there's rust, you'll need to apply a rust-inhibiting primer.
- Wood: Bare and sanded-down woods need to be primed with an exterior wood primer to prevent moisture damage. If it's not bare or sanded down, but there are stains, the stains need to be sealed with a stain-blocking primer.
- Vinyl and Fiberglass: If it's unpainted, use a bonding primer.
Priming is a key step to ensure proper adhesion and that your paint's color turns out as it should, so if you want a long-lasting paint job, make sure to prime your garage door if the conditions call for it.
Step 4: Painting
For garage doors, the material won't affect your paint choice. Whatever the material of your garage door is, you should be using high-quality outdoor acrylic latex paint.
The only additional thing to note when choosing paint is to make sure it's vinyl-safe if your garage door is made of vinyl.
Now, for the painting, the main concern with garage doors is jamming up moving parts, which is usually caused by too much paint over key areas. The important areas to watch out for are:
- Panel seams/joints
- Hinges
- Weatherstripping edges
To prevent gumming up those parts, the key is to ensure you're not painting too thick and that minimal paint gets into them.
This can be done by dipping just the tip of your brush into the paint, tapping off excess paint, and painting parallel to the seams so that minimal paint gets inside.
And if you notice any drips, wipe them with the corner of your brush so that they don't dry and end up obstructing those parts’ movements.
Other than that, the rest of garage door painting is more or less the same as with regular wall painting.
You start by putting your painter’s tape around the areas that you want to keep paint away from, i.e. the surrounding walls that meet the garage door and the weatherstripping.
Then, cut in around the edges and panels, keeping the above points in mind to prevent the paint from being too thick.
Once that’s done, all that’s left to do is roll paint over each garage door panel the same way you would with normal walls. That means:
- Maintaining a wet edge
- Maintaining even pressure
- Painting in a “W” pattern
You’ll want two coats for best results, so let your first coat dry completely, then paint the second coat.
Conclusion

Painting a garage door is a bit more tedious than painting normal walls, but the payoffs are well worth it.
Not only will you give your home a huge aesthetic boost, but you’ll also be protecting your garage door from the elements and extending its lifespan.
If you’re located in Raleigh and you’re looking for
Raleigh painters to handle your garage painting project, give Renewed Walls Painting a call today at 919-759-6676! We deliver the highest quality work, completed on time and within budget, every time..
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