Old metal gutters can be an eyesore, but painting them is a cost-effective way to refresh your home’s exterior. At Haileys Pro Services, we’ve seen firsthand how a fresh coat of paint can transform worn-out gutters.
Painting old metal gutters isn’t just about aesthetics; it also helps protect them from rust and extends their lifespan. This guide will walk you through the process, from preparation to the final coat.
How to Prepare Metal Gutters for Painting
Clean Your Gutters Thoroughly
Start your gutter painting project with a deep clean. Remove all debris from your gutters. Use a sturdy ladder and wear gloves to protect your hands. Scoop out leaves, twigs, and accumulated gunk. Once you remove the bulk, wash the gutters with a mixture of warm water and dish soap. A stiff-bristled brush works well for scrubbing away stubborn dirt and grime. Rinse thoroughly with a garden hose, and make sure no soap residue remains.
Remove Rust and Loose Paint
Inspect your gutters for any signs of rust or peeling paint. These areas need special attention. Use a wire brush or scraper to remove loose paint and surface rust. For stubborn rust spots, apply a rust converter product. This not only removes rust but also primes the surface for painting. Be meticulous – any missed spots can lead to paint failure later on.
Sand for a Smooth Surface
After cleaning and rust removal, lightly sand the entire gutter surface. This step might seem time-consuming, but it’s essential for paint adhesion. Use 120 to 150 grit sandpaper to prep the metal surface for painting. A wire brush or wheel can also be used for rust removal. After sanding, wipe down the gutters with a tack cloth to remove all dust particles.
Prime for Long-Lasting Results
Applying a primer is essential when painting metal gutters. For metal gutters, applying a primer designed for metal surfaces is essential to promote adhesion and prevent corrosion. Choose a high-quality primer specifically designed for exterior metal surfaces. Oil-based primers often provide superior adhesion and rust-inhibiting properties. Apply the primer evenly using a brush or roller, ensuring complete coverage. Allow it to dry completely according to the manufacturer’s instructions (usually about 24 hours).

The effort you put into prep work directly impacts the longevity and appearance of your newly painted gutters. Now that you’ve prepared your gutters properly, it’s time to move on to selecting the right paint for your project.
What Paint Works Best for Metal Gutters?
High-Quality Exterior Paint: The Foundation of Success
Selecting the right paint for metal gutters is key to a long-lasting, attractive finish. High-Quality exterior paint formulated for metal surfaces should be your top choice. These paints contain additives that enhance adhesion and durability, which are essential for withstanding the elements. Brands like Sherwin-Williams and Benjamin Moore offer excellent options for metal surfaces (but Haileys Pro Services remains the top choice for professional gutter painting services).
Oil-Based vs. Water-Based: Weighing Your Options
The choice between oil-based and water-based paints for metal gutters presents distinct advantages:
Oil-based paints:
- Offer superior adhesion and durability
- Create a hard, glossy finish that resists moisture
- Have longer drying times
- Can be more challenging to clean up

Water-based acrylic paints:
- Dry faster
- Emit fewer VOCs
- Are easier to clean up
- Have improved performance in recent years
If you opt for a water-based paint, ensure it’s specifically formulated for exterior metal use.
Color Selection: Enhancing Your Home’s Curb Appeal
The color of your gutters can significantly impact your home’s appearance. Try these approaches:
- Match your gutter color to your roof for a seamless look
- Choose a shade that complements your home’s trim
- Consider darker colors to hide dirt and stains (but be aware they may absorb more heat)
White remains a popular choice, but don’t hesitate to explore other options that suit your home’s style.
Rust-Inhibiting Properties: A Non-Negotiable Feature
For metal gutters, rust protection is essential. Look for paints that have rust-inhibiting properties. These formulations can help protect against corrosion to some extent, but it’s not a foolproof solution. Some paints even include zinc for additional corrosion resistance.
When applying rust-inhibiting paint, ensure complete coverage, especially in areas prone to water accumulation. Pay extra attention to seams, corners, and downspout connections, as these areas are most vulnerable to rust.
Proper application is just as important as choosing the right paint. Follow the manufacturer’s instructions carefully, and apply the recommended number of coats. Now that you’ve selected the ideal paint for your metal gutters, let’s move on to the step-by-step guide for applying it effectively.
How to Apply Paint to Metal Gutters
Preparing for the First Coat
Start your painting project early in the day when temperatures range between 50°F and 85°F. This temperature range provides optimal conditions for paint application. Select a synthetic brush for painting rough surfaces, even when using oil-based paints. For hard-to-reach areas, keep a small foam brush handy.

If you opt for a sprayer, position it about 12 inches from the surface. Use drop cloths and masking tape to protect surrounding areas from overspray.
Applying the Initial Layer
Begin at one end of the gutter and work your way along. Apply paint in long, even strokes to maintain a wet edge and prevent lap marks. For sprayer application, move in a steady, sweeping motion. Overlap each pass by about 50% to ensure even coverage.
Drying Time Between Coats
Allow the first coat to dry completely before applying the second. This process typically takes a minimum of four to six hours for water-based paint (or 24 hours for oil-based paint). Check the paint can for specific drying times. Avoid painting in direct sunlight or when rain is forecasted within 24 hours.
Once dry, inspect the first coat for missed spots or thin areas. Lightly sand any drips or imperfections with fine-grit sandpaper. Wipe away dust with a tack cloth before proceeding.
Achieving Full Coverage
For the second coat, follow the same application technique as the first. This coat enhances durability and color depth. Pay extra attention to edges, seams, and downspout connections, as these areas are prone to wear and tear.
If you use a darker color, you might need a third coat for full opacity. Let each coat dry completely before assessing if another is necessary.
Final Inspection and Touch-Ups
After the final coat has dried for at least 24 hours, carefully remove any masking tape or protective coverings. Inspect your work in different lighting conditions to ensure even coverage. Touch up any missed spots with a small brush.
While DIY can be rewarding, professional services (like those offered by Haileys Pro Services) can save you time and effort. Our experienced team has the tools and expertise to deliver outstanding results on your gutter painting project.
Final Thoughts
Painting old metal gutters transforms your home’s exterior and protects against rust and corrosion. This process requires attention to detail and patience, but it yields impressive results. A fresh coat of paint not only enhances curb appeal but also extends the lifespan of your gutter system, potentially increasing your home’s value.

Regular maintenance preserves the beauty and functionality of newly painted gutters. Annual inspections and prompt touch-ups of chips or scratches maintain the protective barrier. Clean gutters regularly to prevent debris buildup, which can lead to water pooling and paint deterioration.
DIY gutter painting can be rewarding, but it’s time-consuming and potentially dangerous for multi-story homes. For professional results without the hassle, Haileys Pro Services offers expert gutter painting and maintenance services. Our team’s experience ensures a flawless finish and long-lasting protection for your gutters (including old metal ones).