Aluminum Siding Painting

The Ultimate Guide to Painting Aluminum Siding

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By Jason The Painter

Aluminum siding that’s faded or worn can look new again with a fresh coat of paint. It was a top pick for homes from the 1940s to the early 1980s. This was because it’s tough, doesn’t need much upkeep, and keeps out fires, bugs, and rot. If you get it ready right—by fixing small spots, cleaning, and applying primer—your home will glow. But, painting aluminum siding is a bit different. It has its own issues like oxidation, pitting, and corrosion.

Key Takeaways

  • Aluminum siding was a popular choice from the 1940s to the 1980s due to its durability and low-maintenance
  • Faded or worn aluminum siding can be revitalized with a fresh coat of paint
  • Proper preparation, including patchwork, cleaning, and priming, is crucial for a successful aluminum siding painting project
  • Painting aluminum siding differs from painting other materials due to its unique oxidation, pitting, and corrosion characteristics
  • Following the right steps can transform your home’s exterior with a beautiful, long-lasting paint job

Preparing for Aluminum Siding Painting

Getting ready to paint your Aluminum Siding? It’s crucial to prepare well. This involves steps like assessing your siding, cleaning it, and making repairs where needed. These steps will help the new paint stick better and last longer.

Inspecting and Cleaning the Siding

Your siding may have turned a dusty gray or white. This is the result of oxidized aluminum, which doesn’t come off easily with just a pressure wash. You’ll also need to use a scrub brush and a mild cleaning mix. Remember, you don’t normally have to strip off the original powder coating. But, if there’s any old paint that’s peeling, you must take it off.

Repairing and Patching

Take care of the small holes and cracks with a paintable caulk. Caulk around the windows and doors too. Next, fill in the dents on the siding. For the big holes, you may have to patch the area with aluminum and apply filler on top.

Masking and Protecting Surfaces

Before you start painting, cover the areas you don’t want to paint. This includes windows, doors, and other fixtures on your siding. Use painter’s tape and masking paper for this. Lay down a drop cloth to protect the ground and plants from paint.

Aluminum Siding Painting


Oil-based primers work best on aluminum siding. They are tough and stick well. They are harder to work with than water-based primers, but they last longer. When using one, mix the primer and put it in your paint sprayer.

Wear a mask and goggles to protect yourself. Start spraying the primer in sections no bigger than four feet by four feet. Let the primer dry for an hour. Then, clean your paint sprayer before moving on.


Now, it’s time to paint. Apply the paint using your sprayer, just like you did with the primer. Work in small areas. After spraying an area, use a paint roller to roll over the wet paint.

This is called back rolling. It helps the paint go on evenly and stick well. If you have someone to help, this step goes a lot quicker. One person can spray while the other person does the back rolling.

Applying Additional Coats

Let the first coat of paint dry for two hours. If it’s humid or cold, it may need more time to dry. Then, you can paint a second coat over the siding.


Painting aluminum siding might need more work upfront than other types of siding. But, it’s worth it. By cleaning, fixing, and priming the siding first, you can make your home look brand new. This effort leads to a beautiful, lasting finish. If it feels like a big job, think about hiring experts. They can take care of everything for you.

A professional crew that works on metal siding refinishing knows exactly what to do. They have the tools to handle oxidized aluminum treatment and repaint aluminum siding quickly and perfectly. This will give your home a fresh, updated look. If you don’t want to spend too much time and energy on this, it’s wise to call them.

Whether you paint the aluminum exterior yourself or get help, the goal is the same. A well-prepared and painted aluminum siding can really improve how your home looks. If you do it right, your siding will look new and you won’t have to worry about it for many years.


What is the process for painting aluminum siding?

First, prepare the surface. Next, apply a primer. Then, you can paint over it. Make sure to clean the siding first. Also, fix any damage and cover areas you don’t want to paint.Always use oil-based primer and paint for aluminum. This ensures a good finish.

Do I need to remove the original factory powder coating before painting?

No, you do not need to remove the factory powder coating. If it’s not peeling, you can paint right over it.

How do I clean and prepare the aluminum siding for painting?

Begin by pressure washing to remove dirt. Then, use a scrub brush and mild cleaner to get rid of stains. Fill any cracks or holes. Finally, you’re ready to prime and paint.

What type of primer should I use for aluminum siding?

For aluminum siding, use oil-based primer. It sticks well and lasts longer than water-based primers.

How do I apply the paint to the aluminum siding?

Apply paint with an airless sprayer. Then, use a roller to smooth it out. This gets you an even finish.A second coat of paint will make it look its best.

Should I hire a professional painter for this project?

If painting your house’s exterior seems like too much work, hire a pro. Professionals know how to handle aluminum siding well. They can save you time and energy.

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