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Can you paint aluminum siding?

A lot of homeowners are curious: Can I paint aluminum siding? The answer to this question is yes – you can paint aluminum siding! Adding a fresh coat of paint can not only help your home’s curb appeal; it can also add an extra layer of protection to your siding in the right conditions.

Even though the answer to the question “can I paint siding?” is YES, it might not always be the best option for your home. Here are six things to consider before you start picking out paint colors.

Warranties for house siding

Can you paint house siding? Yes, but check your warranty first. Many manufacturers of home siding void the warranty on the siding if you paint it. Here’s what you should find out about your warranty before deciding to paint:

  • Is your warranty still valid? Different manufacturers have different terms. If your warranty has expired, you can paint with no risk to your warranty.
  • Can siding be painted under your warranty? Many manufacturers do not allow painting if you want to keep your warranty.
  • Is the warranty transferable? If you bought your house from a previous owner who installed siding, the warranty may or may not have carried over.

Depending on how valuable your warranty is to you, you may still choose to paint your siding. The moral of the story? Make sure you’re able to make an informed decision by getting all of the details on your home’s siding warranty before painting.

Cost of painting house siding

Painting siding is significantly more affordable than replacing it, as long as your siding is in relatively good condition. According to, installing new siding can run between $7,500 and $22,500, and averages $13,500 for a 1,500 sq. ft. home. 

The cost of painting siding depends on the size of your home and paint and siding types but will run between $1,000 – $4,000 for a 1500 sq. ft. home for aluminum siding. 

Type Of Siding Average Cost to Paint 1,500 sq.ft. Cost Per Square Foot
Aluminum  $1,250 – $3,700 $0.83 – $2.50

Painting Aluminum Siding 

Can you paint aluminum siding? Yes, and it’s a great way to extend the life of your siding and keep it in the best condition.

If you have aluminum siding, it’s more than likely that with time, the original finish will start to wear and turn chalky from rain and sun exposure. Parts of the bare metal begin to peek through, and this is when painting becomes the perfect option for siding that is still intact but starting to look a little rough.

So not only can you paint aluminum siding, but you should when this starts to happen. Luckily for you, aluminum is one of the easier types of siding to paint. It takes paint better than most other siding types, making it more affordable.

Here’s what you’ll need to do before you paint.

Steps to Painting Aluminum Siding 

1. Inspect the siding

  • Look for damage. If you see structural holes or issues, consider fixing those parts of the siding before painting.
  • Check for powdery paint pigment and mildew by rubbing siding with a cloth.
  • Test old paint for lead with a lead testing kit. Since aluminum siding was commonly installed from the 1940s-1970s, you’ll want to check for lead in the previous paint used if you have an older home. If lead is present, you’ll need to contact a lead abatement specialist before proceeding.

2. Clean

  • Scrape off any peeling or flaking paint with a paint scraper.
  • Create your cleaning solution.
    • 1 cup chlorine bleach
    • 1 cup TSP (Trisodium Phosphate)
    • 1 gallon of water
  • Choose your method of cleaning. The most common are hand scrubbing or power washing.
  • Cover the ground with nearby shrubs with drop cloths.

Hand scrubbing or power washing?

To clean the siding by hand, soak an abrasive sponge in your cleaning solution and then scrub by hand. Afterward, rinse with a garden hose.

Pressure washing is faster than hand scrubbing and is our recommended method. Fill the power washer with your cleaning solution, and spray downward to avoid spraying in between the siding. Rinse with a hose when done.

3. Apply primer

Once your siding is dry after washing, apply one coat of oil-based primer meant for metal surfaces using a synthetic polyester paintbrush. Let dry for at least four hours. 

4. Paint

For painting aluminum siding, choose an acrylic exterior paint in the color and finish of your choosing. Most colors should work just fine after you apply your primer, but keep in mind that dark colors absorb more heat, so they are not recommended.  

Roll on your paint in the same direction as your siding, and use a brush to paint the edges. Apply two coats of paint for the most attractive and long-lasting result, letting the paint fully dry in between coats. 

Tools Needed to Prep and Paint Aluminum Siding

  • Gloves 
  • Abrasive sponge 
  • Pressure washer 
  • Bucket
  • Safety goggles
  • Ladder 
  • Oil-based, anti-rust primer 
  • Synthetic polyester paintbrush
  • Paint rollers 
  • Plastic paint buckets 
  • Plastic paint trays 
  • Drop cloths 
  • Acrylic paint