Many garage doors can be repainted, but the finish, material and warranty determine the permitted paint and preparation. Check the door manufacturer's instructions first, then clean, prepare and coat only as directed. Some factory finishes and overlays have color or coating restrictions.
What you need
The coating and primer approved for your door, cleaning supplies, painter's tape, drop cloths, and the applicators and protective equipment specified by the product labels. Do not sand an older unidentified coating until it has been checked for lead.
Steps
- Clean the door with mild detergent and water, then let it dry completely.
- Sand rough or peeling spots and fill any dents.
- Tape off handles, windows and trim, and lay down drop cloths.
- Apply primer on bare metal or for a major color change, and let it dry fully.
- Paint the recessed panels with a brush first, then roll the flat sections top to bottom.
- Let each coat dry fully before adding a second.
Choosing paint by material
Use a high-quality exterior latex for most doors. For vinyl or composite overlays, use only manufacturer-approved coatings and colors; excess heat from dark finishes can cause damage. Prime exposed metal only as the finish instructions direct.
Avoiding common mistakes
Most problems trace back to painting in direct sun, below about 50°F, or in high humidity; skipping primer; or rushing between coats. Wear a mask, gloves and goggles while you work. If you get drips or peeling, sand the spot down once the door is dry and repaint it.
Common questions
How long does it take?
The painting itself usually takes 3 to 4 hours. Plan for a full day or two once drying time between coats and preparation are included.
Can you paint a vinyl garage door?
Only if the door manufacturer permits it. Follow its coating and color restrictions; paint marketed for vinyl is not automatically approved for every door.
Considering a new door instead of a repaint? See garage door installation or call (916) 838-8182.
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