How to Paint Aluminum Gutters

Painting roof gutters

If you’re tired of looking at your faded, outdated aluminum gutters, you’re not alone. But before you start considering expensive replacements, know that there’s a simpler solution: painting them! Painting your aluminum gutters is a cost-effective way to give your home a refreshed look without breaking the bank. To help you get started, we’ve put together a guide on how to paint aluminum gutters, step-by-step.

7 Steps to Paint Aluminum Gutters

Over time, aluminum gutters can lose their shine and become an eyesore, detracting from your home’s curb appeal. Fortunately, painting them is pretty easy. Here are seve steps to follow to paint your aluminum gutters like a pro:

Step 1: Gather the Materials

Before you start painting, make sure you have all the necessary materials. Here’s what you’ll need:

  • Primer
  • Paint for aluminum surfaces
  • Paintbrushes or rollers

It’s also a good idea to have these additional items on hand:

  • Drop cloths or plastic sheets
  • Painter’s tape
  • Gloves and safety goggles
  • Cleaning supplies

Step 2: Choose an Oil-Based Enamel Paint Suitable for Aluminum Surfaces

This is where you really want to invest in high-quality paint. While water-based paints (e.g., acrylic paint) may be easier to clean up, they just don’t hold up as well over time. Oil-based enamel paints are the way to go if you want your gutters to be resistant to chipping and peeling. With a variety of colors to choose from, you can find the perfect shade to complement your home’s exterior. Plus, they ensure that rainwater flows quickly and efficiently. 

Also, you want to make sure you’re using an oil-based paint that’s specifically formulated for aluminum surfaces. This will ensure that the paint adheres properly and lasts for years to come.

Step 3: Clean the Gutters and Downspouts Thoroughly

Before you break out the paintbrush, it’s important to clean your rain gutters and downspouts thoroughly. Why? Both can accumulate debris, dirt, and grime, which can prevent the paint from adhering properly.

Here’s how to do it: 

  • Start by grabbing a small trowel and removing any large debris, like leaves and twigs, from your gutters. 
  • Next, scrub your gutters and downspouts with warm water. You can use a scrubbing brush or a soft cloth to do this.
  • Then, grab a garden hose and flush out any remaining dirt and grime. You can also use pressure washing to make the job easier and more efficient. Just make sure to wear gloves and protective eyewear to avoid any injuries.
  • Once you’re done, let the gutters and downspouts dry completely before moving on to the next step. This will ensure that the paint adheres properly and that you get an even finish.

Don’t forget to inspect your gutter system for any damage or leaks. Look for cracks, holes, or rust spots that may need to be repaired before you start painting.

Step 4: Sand the Gutters to Remove Any Rough Spots

Now that your gutters are looking spick and span, it’s time to get them ready for their makeover. The next step is to sand your aluminum gutters to remove the old paint and any rough spots. This will help the new paint adhere and ensure a smooth finish.

  • Grab a fine-grit sandpaper or aluminum oxide and get to work. Start at one end of the gutter and work your way down, sanding in the same direction as the gutters. Don’t forget to sand any end caps or joints as well.
  • If you come across any tough spots that just won’t budge, use a wire brush or a scraper to remove them. Just be careful not to scratch the surface of the gutters.
  • Once you’ve sanded the entire gutter, wipe them down with a clean cloth to remove any dust or debris.

Step 5: Apply a Coat of Primer to Help the Paint Adhere

Now it’s time to add a layer of primer to your gutters. This will help the paint stick better and last longer. 

Here’s how to do it: 

  • Grab a can of metal primer and a paintbrush or roller. Like when sanding your gutters, start at one end of the gutter and work your way down, applying the primer in thin, even coats. Make sure to cover all surfaces, including the end caps and joints. If you’re using a roller, you may need to use a brush to get into any tight spaces.
  • Once you’ve applied the primer, give it some time to dry completely. Don’t rush this step – it’s important for the longevity of your gutters.

Step 6: Apply the First Coat of Paint

Man painting a gutter
Photo Credit: bluegame / Canva Pro / License

Now that you got your paint and your brush or roller, it’s time to apply the top coat:

  • First things first, make sure you’re wearing clothes that you don’t mind getting a little paint on.
  • Use plastic or tape to cover any areas you don’t want to be painted, such as downspouts or siding.
  • When applying the first coat of paint to your gutters, use thin, even coats.
  • As you’re painting, take a step back every once in a while to make sure you’re not missing any spots or leaving any streaks. And don’t worry if the first coat doesn’t look perfect – that’s what the second coat is for! Just focus on getting an even coat of paint on all surfaces, including the end caps and joints.

Now, you might be tempted to rush through this step so you can move on to the next one. But taking your time with the first coat will pay off in the end. You’ll end up with a smoother, more even finish, and you’ll be able to apply the second coat with confidence.

Pro Tip: Don’t forget to paint the fascia, too! This will help give your home’s exterior a cohesive look and ensure that your gutters look their best.

Step 7: Apply the Second Coat of Paint

Before you start painting, make sure that the first coat is completely dry. You don’t want to apply the second coat too soon and end up with a mess. Depending on the weather and the humidity, it can take anywhere from a few hours to overnight for the first coat to dry completely.

Next:

  • Apply the second coat in the same way as the first – thin, even coats, starting at one end of the gutter and working your way down. Make sure to cover all surfaces, including the end caps and joints.
  • Touch up any areas that may not have been covered completely with the first coat.
  • Give the second coat plenty of time to dry before removing any tape or plastic you may have used to protect your home’s exterior (at least 24 hours).
  • While you’re waiting for the paint to dry, take some time to clean up your work area. Dispose of any paint cans or brushes properly and wipe down any surfaces that may have gotten a little messy during the painting process.

Safety Considerations When Painting Aluminum Gutters

When it comes to any DIY home improvement project, safety should always be at the top of your list. This is especially true when it comes to painting your aluminum rain gutters. While it may seem like a simple task, painting can be messy, time-consuming, and even dangerous if you’re not careful. Here are a few things you should keep in mind:

  • Wear protective clothing, such as long sleeves, pants, and closed-toe shoes to protect your skin. You may also want to wear gloves and a hat to protect your hands and head.
  • Use a sturdy ladder. You’ll likely need a ladder to reach your gutters, so make sure you’re using a sturdy one. It’s also a good idea to have someone hold the ladder steady while you’re on it.
  • Use a paintbrush or roller with a long handle to avoid having to climb up and down the ladder too often. This can help reduce the risk of falls or injuries.
  • Check the weather forecast before you start painting. Avoid painting on a windy or rainy day, as this can make the job more difficult and dangerous.
  • Use a drop cloth or tarp to protect the ground and surrounding areas from paint splatters and spills. This can also help prevent slips and falls.
  • Wear eye protection and a respirator mask if you’re using a sprayer to apply paint. This can help protect your eyes and lungs from paint particles and fumes.
  • Don’t paint in direct sunlight or extreme heat. This can cause the paint to dry too quickly and lead to uneven coverage or peeling.

FAQ About Painting Aluminum Gutters

What is the best primer for painted aluminum gutters?

A clear acrylic bonding primer is a great option because it can help your paint stick to the surface and protect against rust and other types of corrosion. You can find this type of primer at most hardware stores. Also, make sure to choose an ammonia-free primer —primers containing ammonia can react with aluminum and damage your gutters.

Do gutters need to be primed before painting?

Yes, it’s generally a good idea to prime your gutters before painting them. Priming can help the paint adhere better to the surface, which can result in a more even and long-lasting finish. Additionally, a good primer can help protect against rust and other types of corrosion that can damage your gutters over time.

Can you paint gutters with a brush?

Yes, you can definitely paint gutters with a brush! In fact, using a brush can be a great option for smaller or more intricate areas where a roller or paint sprayer might not be able to reach.

DIY Gutter Painting vs. Hiring a Professional

Painting your aluminum gutters can be a great way to improve the look and longevity of your home’s exterior. While it’s possible to tackle this project on your own, it’s important to carefully consider the time, effort, and safety risks involved. 

If you have the necessary skills and equipment, painting your gutters yourself can be a rewarding and cost-effective option. However, if you’re not comfortable with heights or don’t have experience with painting, it’s best to hire an expert to do the job for you. They can help ensure that your gutters are properly cleaned, primed, and painted, and can save you time and effort in the process.

If you’re ready to ditch the paintbrush and let the pros handle the job, reach out to a reputable gutter professional near you today. 

Main Photo Credit: CarrieCaptured / Canva Pro / License

Tatiana Barrie

Tatiana Barrie is a seasoned writer with a knack for DIY projects around the house. While she might grumble about cleaning the gutters or fixing a leaky faucet, she's found a surprising joy in mastering the little fixes that make a house a home.