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How to paint your garage door

Is your garage door fit for a DIY repainting?


Most how-to manuals will tell you that it’s easy to repaint your garage door in just a few steps, but it depends on the type of material your garage door is made from. Today, garage door comes in all types and flavor. Aluminum, PVC and glass are just a few of many materials garage doors are made of.


In this article we’ll explain the different possibilities to repaint your garage door depending on the material of the door itself. As you will see not all garage door repainting jobs are DIY and for them, you’ll have to call in a specialist to get the job done right.

Before we begin, let’s examine if your garage door needs repainting at all. Sometimes it looks like a good repaint will get your garage door to look like new but this not always the case. If your garage door has dents or major cracks, it’s probably a good idea to call a garage door service professional.


In some cases, the door will need to be totally replaced, so prefer consultation if you’re not sure.


The second thing we need to check is the type of material your garage door is made of. More particularly, the outside layer material. in most cases the door is made from several composite materials and layers.


Only the top layer is being painted so you should determine what it’s made of. If you’re not sure, contact your garage door supplier.


They will be able to tell you exactly the type of material you should paint.


Wooden garage doors

As expected, this type of doors is usually made entirely out of wood and therefore they require the same attention as other wooden door or windows you may have. They require more preparing then other materials, but this is a DIY job is you have the time for it.

Follow these steps and remember, pick a day with clear weather conditions. Climate conditions have a Hugh impact on painting.

  1. Use a scraper to remove old paint and flaking. If you see holes, you’ll have to use a filler. This should be done according to the instructions of the filler.

  2. User a sander (preferably an electric one) to sand the door or the desired area.

  3. Use a degreaser to clean the door then wash it with clean water and wait for it to dry completely before continuing.

  4. Now it’s masking time. Take the time to do it well – it will save you much work later. Mask everything you don’t want to paint. Don’t forget to mask celling and floor as well. Use masking paper and painter’s tape to secure the paper.

  5. Paint the door with primer. It’s recommended to use a spray gun and repeating sweeping motion back and forth until the entire door is covered and allow to dry according the manufacturer’s instructions.

  6. Now paint the door. Use a professional paint shop to decide which paint fit’s best for your garage door. Again, use a spray gun and long sweeping motion until the first coat if fully applied. Several coats can be needed to achieve the desired tone. Allow each coat to fully dry before painting a new one.

  7. Don’t forget to use Lacquer after you finish painting. This will apply a layer of weather proof clear coat to protect your door for years.

  8. Gently remove masking and painter’s paint and take a look at your new garage door.

Aluminum or Metal garage doors

This type of garage doors is much easier to paint and it’s a pretty much a straight forward job. Buy a color that fits your garage door material and follow these instructions:

  1. Wash your garage door with a hose and then use a cloth and a bucket with dish washer degenerate and water to remove any oily bits.

  2. Wash again with clean water and with to fully dry.

  3. Mask the floor and ceiling and other needed parts as well. Use masking paper and painter’s tape to secure it.

  4. Use a spray gun with oil-based metal primer according to the manufacturer’s instructions.

  5. Clean the spray gun and fill it with a 100% acrylic exterior latex or oil-based paint. Then spray the entire door with long sweeping motions. Multiple coats may be required to achieve the desired shade. Wait to fully dry between each coat.

  6. Wait to fully dry and gently remove the masking and tape and you’re done. No additional coat is needed. The paint itself is protecting your door from weather damage.

Fiberglass garage doors

Because fiberglass is a special material it needs different attention. Also, if you use a brush instead of a spray gun, you’ll end up with brush marks on your door.

  1. Use sand paper to sand the entire door until you remove the slick layer and you have a rough surface. Use a face mask because fiberglass fiber is very dangerous to breath! Do not choose a sandpaper with a grit below 300, or you may scar the Fiberglas.

  2. Use a hose and clean water to wash toughly the door. Again, it’s important to use a face mask. When done wait to fully dry.

  3. Now it’s masking time. Tape over the areas you don’t want to paint such as windows. Use masking paper and painter’s tape.

  4. Use a spray gun with primer and long sweeping motions to apply a primer coat to your garage door.

  5. Wait to fully dry and then apply a latex color coat. Make sure you use a color fit for fiberglass. Multiple coats may be required to achieve the desired shade. Wait until fully dry before applying a new coat.

  6. No additional coat is needed. The paint itself is protecting your door from weather damage.

Important tips:

  1. Safety is first! always Use a face mask and gloves when painting your garage door.

  2. Make sure no small children or pets are around when painting your garage door.

  3. Make sure the weather conditions are right for painting. Weather can greatly impact on your paint quality.

  4. Always follow the manufacturer instructions when using paints and degenerates.

  5. Take your time to mask the areas you don’t need to paint such as the windows and hinges. It’s crucial for the door to function properly later.

  6. Wait to fully dry after applying each coat according to manufacturer instructions.

  7. Be sure to make sure the paint and cleaning materials you use fit the type of material your garage door is made of.

  8. When removing the masking paper and tape, do it carefully to not ruin your fresh new paint.

  9. Mask the floor as well by using cloths to prevent the need to clean the floor after painting.

  10. Use a spray gun and clean it well after each use. If you use a roller, replace the roller before moving from primer to the actual color you apply.


And as always, if you are not a DIY person or in need for a professional advice don’t hesitate to call us at Integrity Garage door. We will be more than happy to help!


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24/7 services.​ Proudly created by Integrity Garage Doors & Gates 2020

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