Best Cleaners for Metal Siding

Maintaining metal siding is crucial to protect its appearance and durability. Florida's humid climate, storms, and salty air can cause mold, mildew, and oxidation, making regular cleaning a must. Choosing the right cleaner ensures your siding stays in top condition without damaging protective coatings or the environment.

Key Takeaways:

• Top Cleaners: Products like Simple Green Oxy Solve, Krud Kutter, and Mold Armor E-Z House Wash effectively remove grime, mold, and mildew.
• Eco-Friendly Options: Simple Green Oxy Solve is biodegradable and safe for plants, pets, and water systems.
• Cost-Effective Solutions: Everbrite coating restores siding for $0.15–$0.20 per square foot, extending its lifespan.
• DIY Tip: A homemade solution of laundry detergent and water works for regular cleaning.
• Safety First: Always test cleaners on a small area, avoid abrasive tools, and rinse thoroughly to prevent residue.

Quick Comparison:

Product Name	Application Type	Eco-Friendliness	Price Range	Key Features
Krud Kutter Pressure Washer Soap	Pressure washer compatible	Biodegradable	$10–$15 per gallon	Effective on grime and mildew; rinse thoroughly
30 Seconds Outdoor Cleaner	Ready-to-use spray	Contains bleach (handle carefully)	$10–$20 per gallon	Fast-acting on mold and algae
Simple Green Oxy Solve	Manual or pressure washer	Plant- and pet-safe	$15–$20 per gallon	Oxygen-based; safe for landscaping
Clorox Outdoor Bleach Cleaner	Manual application (dilution required)	Use cautiously near plants	$8–$12 per gallon	Strong for heavy stains; dilute before use
Mold Armor E-Z House Wash	Hose-end sprayer system	Use cautiously near plants	$10–$15 per bottle	Convenient auto-mixing for large areas

For effective cleaning, choose a product suited to your siding type, follow safety precautions, and clean annually to prevent buildup. Proper care ensures your siding remains durable and visually appealing for years.

What’s the Best Siding Cleaner on the Market! We Tested Them All!

How to Choose the Right Cleaner for Metal Siding

Selecting the right cleaner for metal siding isn't just about picking any product off the shelf - it depends on the type of metal you're dealing with. Each type of siding has its own care requirements to ensure proper cleaning without causing damage. Here's a closer look at what each type needs.

Metal Siding Types and Their Cleaning Needs

Steel siding comes with protective coatings that require careful handling. Stick to low-pressure water washing and avoid harsh chemicals that could strip the finish, leaving the metal vulnerable to rust.

Aluminum siding doesn’t rust, but it can oxidize and develop a chalky appearance over time. A mix of mild detergent and water, paired with soft cleaning tools, is ideal to prevent scratches or dents.

Corrugated metal panels often have protective coatings, but their ridged design can trap dirt and debris. Use pH-neutral cleaners to avoid corrosion, and make sure to rinse thoroughly to clear out trapped particles.

Painted metal siding relies on its paint as a protective layer. Gentle detergents and low-pressure water are the way to go to avoid chipping or damaging the paint.

Key Features to Look for in Cleaners

To protect your siding and make cleaning more effective, the right cleaner should have specific features that ensure safety and efficiency.

Biodegradability is essential for environmentally conscious cleaning. Look for cleaners that naturally break down without harming the soil or water. For example, Simple Green Oxy Solve House and Siding Cleaner is "direct release certified", meaning it’s safe for direct use in areas like Florida, where eco-friendly products are vital.

Compatibility with pressure washers can save you time and effort. Many cleaners are designed for use with pressure washers, ensuring even application. Always test on a small area first to prevent damage or water intrusion.

Mold and mildew removal is crucial, especially in humid regions. Products formulated to combat these issues, like oxygen bleach solutions, are a great choice. Unlike chlorine bleach, oxygen bleach cleans effectively without harmful side effects. A typical solution of 1 part bleach to 3 parts water works well for most mold problems.

EPA compliance and safety are non-negotiable. Choose non-toxic cleaners that are safe around plants and animals and meet EPA guidelines. This ensures your family, local water systems, and soil are protected.

Manufacturer warranty protection is another factor to consider. Using cleaning products approved by the siding manufacturer can help maintain warranty coverage. For instance, Cleansweep® Cleaner, approved by Sherwin-Williams, is designed for coated metal panels and covers up to 2,000 square feet per gallon. Following these guidelines not only protects your warranty but also extends the life of your siding.

Avoid cleaners with abrasive agents, strong acids, or undiluted bleach. Abrasive agents can scratch coatings, acids like muriatic acid can corrode metal, and undiluted bleach can harm both the paint and surrounding vegetation. If you're unsure, a simple homemade solution - ⅓ cup of laundry detergent mixed with 6 gallons of water - is a safe and effective option for regular cleaning.

Choose a cleaner that gets the job done while protecting your siding, preserving its finish, and being kind to the environment.

Best Cleaners for Metal Siding

When it comes to keeping metal siding looking its best, these five cleaners stand out for tackling grime, mildew, and other tough stains. Each product has its own strengths, making them suitable for various cleaning challenges.

Krud Kutter House and Siding Pressure Washer Soap

Krud Kutter House and Siding Pressure Washer Soap is a biodegradable option that effectively removes grime, mildew, and algae. With an average rating of 4.5/5 stars on major retail platforms, users appreciate its straightforward application and reliable performance on stubborn buildup.

Priced at $10–$15 per gallon, this cleaner pairs well with pressure washers, making it ideal for covering larger surfaces. To use, apply the solution evenly across your siding, tackle one section at a time, and rinse promptly to avoid residue.

Looking for a fast-acting solution? Check out the next option.

30 Seconds Outdoor Cleaner

30 Seconds Outdoor Cleaner offers a bleach-based, ready-to-use formula that targets mold, mildew, and algae stains quickly. It’s rated 4.6/5 stars for its efficiency and ease of use, though some users note the strong bleach smell.

At $10–$20 per gallon, this cleaner requires no mixing - just spray and apply. However, the bleach content calls for precautions: wear gloves and eye protection, ensure proper ventilation, and shield nearby plants from exposure.

Prefer an eco-friendly choice? Read on for a plant-safe alternative.

Simple Green Oxy Solve House and Siding Cleaner

Simple Green Oxy Solve House and Siding Cleaner uses an oxygen-based formula that’s perfect for homeowners seeking an environmentally safe option. With a 4.7/5 star rating, users commend its ability to handle tough stains without harsh chemicals that could harm plants, pets, or water systems.

This cleaner is "direct release certified," meeting strict environmental safety guidelines. At $15–$20 per gallon, it works well on dirt, mold, and mildew, whether applied manually or with a pressure washer. Be sure to rinse immediately after use for the best results.

For particularly stubborn stains, you may need a stronger bleach-based cleaner.

Clorox Outdoor Bleach Cleaner

Clorox Outdoor Bleach Cleaner is a go-to solution for tackling heavy stains, mold, and mildew. At $8–$12 per gallon, it’s one of the most cost-effective options for tough cleaning tasks.

This cleaner is especially effective on severe staining that gentler products might struggle with. Dilute it at a 1:3 ratio (bleach to water), and rinse thoroughly to protect your siding’s finish and nearby landscaping. Always test a small area first, especially if your siding is painted or coated.

For an easier way to clean large areas, consider a hose-end sprayer system.

Mold Armor E-Z House Wash

Mold Armor E-Z House Wash simplifies cleaning with its hose-end sprayer design, which automatically mixes the concentrate with water for consistent dilution. With a 4.5/5 star rating, it’s popular for its convenience and ease of use on larger surfaces.

At $10–$15 per 64 oz. bottle, this system takes the guesswork out of mixing ratios and reduces the risk of using an incorrect solution strength. It’s most effective with strong water pressure from your garden hose.

For additional advice on cleaning and maintaining metal siding, consult Bayshore Exteriors. Up next, learn more about safe cleaning techniques for metal siding.

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Product Comparison Chart

Making the right choice for a cleaner is easier when you can weigh the key details: product name, application type, eco-friendliness, coverage, and any special usage notes. Below is a handy chart that breaks down these features side by side.

What to Compare

Product Name	Application Type	Eco-Friendliness	Coverage Area	Special Usage Notes
Krud Kutter House and Siding Pressure Washer Soap	Works with pressure washers	Biodegradable formula	Check product label for specifics	Designed for pressure washers; rinse thoroughly to prevent residue
30 Seconds Outdoor Cleaner	Ready-to-use spray	Contains bleach - handle with care	Check product label for details	No mixing needed; keep plants protected and ensure good ventilation
Simple Green Oxy Solve House and Siding Cleaner	Works manually or with pressure washers	Certified safe for plants and pets	Coverage depends on dilution ratio	Oxygen-based formula, ideal for metal siding cleaning
Clorox Outdoor Bleach Cleaner	Requires manual application with dilution	Handle carefully to avoid harming vegetation	Check product guidelines for coverage	Always dilute as directed and test on a small area first
Mold Armor E-Z House Wash	Hose-end sprayer system	Use cautiously near landscaping	Refer to instructions for coverage	Features auto-mixing; works best with strong water pressure

Each product has unique application methods and coverage capabilities, so always follow the manufacturer's directions. While Simple Green Oxy Solve stands out for being plant- and pet-safe, bleach-based cleaners like 30 Seconds Outdoor Cleaner and Clorox Outdoor Bleach Cleaner need extra attention to protect surrounding areas.

For expert advice on selecting and using cleaning products, reach out to Bayshore Exteriors.

How to Clean Metal Siding Safely

Cleaning metal siding takes a bit of care and the right approach to avoid damage while getting great results. By following the right preparation steps and cleaning techniques, you can keep your siding looking its best without risking harm to it - or yourself.

Safety and Preparation Steps

Start by protecting yourself. Always wear gloves and eye protection when working with chemical cleaners. Before diving in, test the cleaner on a small, hidden section of your siding to make sure it won't cause discoloration or damage. This is especially important for painted or coated metal, as some cleaners can strip away the finish.

Take steps to shield your property and landscaping. Move or cover outdoor furniture and plants, and wet down nearby landscaping to protect it from any runoff. Make sure all windows and doors are securely closed to keep the cleaner from seeping inside. Check both your siding manufacturer’s guidelines and the cleaner’s instructions to make sure they’re compatible - using the wrong product can cause serious issues.

Pick the right day for the job. Aim for cool, calm weather to keep the cleaner from drying out too quickly and leaving residue. Avoid hot, sunny days, as they can cause streaking and make cleaning more difficult.

Once you’re ready, you can move on to the actual cleaning process.

Proper Cleaning Methods

Getting streak-free results comes down to technique. Work in sections, applying cleaner from the bottom up and rinsing from the top down. This approach prevents streaks and ensures the cleaner doesn’t dry on the surface, which can lead to stains.

Use soft, non-abrasive tools for the job. Avoid anything rough like steel wool or abrasive pads, as these can scratch or damage protective coatings. For tough spots, stick with a soft-bristled brush and a compatible cleaner - gentle scrubbing works better than using harsh tools.

If you’re using a pressure washer, keep it at least 12 inches away from the siding and stick to the lowest pressure setting. This helps prevent dents or water getting behind the panels. Be careful not to spray under the siding or around windows and doors, as this can force water into places it shouldn’t go.

Thorough rinsing is just as important as cleaning. Any leftover cleaner can attract dirt and cause streaks, so make sure to rinse every inch of the surface well.

Never mix cleaning chemicals, especially bleach with other products - it can create dangerous reactions. Stick to one cleaner at a time and follow the dilution instructions exactly.

Once your siding is clean, regular maintenance will help keep it looking great.

Maintenance Schedule and Tips

A yearly cleaning is usually enough to prevent buildup and extend the life of your siding. However, if you live in an area with high humidity, pollution, or lots of trees, you might need to clean more often to keep it in top shape.

During each cleaning session, inspect your siding for any damage or loose panels. Addressing issues like dents, scratches, or compromised coatings quickly can help prevent bigger problems like water infiltration.

When planning your annual cleaning, pay attention to how much cleaner you’ll need. For example, Cleansweep® Cleaner covers about 2,000 square feet per gallon, making it a great option for large projects and helping you estimate your time and material costs.

For smaller touch-ups or routine upkeep, a gentle homemade cleaning solution can work well. Just remember to follow the same safety and cleaning methods outlined above.

In some cases, manufacturers may recommend applying a water sealer after cleaning. If this applies to your siding, check the manufacturer’s guidelines to avoid damaging the finish or voiding any warranties.

If your siding is particularly complex or has specialized finishes, it might be worth consulting professionals like Bayshore Exteriors. They can provide expert advice and ensure your cleaning process matches your siding’s specific needs and warranty terms.

Conclusion

Selecting the right cleaner for your metal siding is essential to keep it in top shape. Options like Simple Green Oxy Solve and Cleansweep® Cleaner are dependable choices. Cleansweep® stands out with its impressive coverage of 2,000 square feet per gallon, making it a solid pick for larger homes. If you prefer a DIY approach, mild detergent or oxygen bleach solutions can also deliver great results.

Regular maintenance is key. Cleaning your siding annually not only keeps it looking fresh but also extends its lifespan. When cleaning, apply the solution from the bottom up and rinse from the top down. Be thorough in rinsing to remove any residue that might attract dirt or lead to corrosion over time.

Safety should always come first. Test your cleaning solution on a hidden spot to ensure compatibility, shield nearby plants, and avoid mixing chemicals - especially bleach with other products. Stick to soft brushes and low-pressure settings to avoid damaging your siding’s protective coating.

For tougher cleaning tasks, consider bringing in the pros. Companies like Bayshore Exteriors offer a full range of services, from cleaning and maintenance to repairs, helping you safeguard warranties and ensure your siding remains in excellent condition.

Whether you’re tackling the job yourself or hiring professionals, proper care will preserve your metal siding’s appearance, extend its durability, and maintain your home’s value. With the right products and techniques, your siding will stay clean and resilient for years to come.

FAQs

What are the best eco-friendly cleaners for metal siding that are safe for plants and pets?

When it comes to cleaning metal siding, choosing products that are safe for the environment, as well as for your plants and pets, is key. Opt for cleaners labeled as biodegradable, non-toxic, and free from harsh chemicals like bleach or ammonia. If you prefer a DIY approach, a mix of water with mild dish soap or a vinegar-based solution can work wonders. These options are gentle but still effective.

For those stubborn stains, consider using eco-friendly commercial cleaners specifically made for outdoor surfaces. Always test on a small, inconspicuous area first to ensure compatibility, and make sure to rinse thoroughly to avoid leaving any residue behind. If you're uncertain about the best method, reaching out to a professional, such as Bayshore Exteriors, can be a smart move. They can provide expert guidance and services to maintain your siding’s appearance while ensuring the safety of your home’s surroundings.

What’s the best way to safely use a pressure washer on metal siding?

To clean metal siding with a pressure washer safely, start by choosing a machine with the right PSI setting - somewhere between 1,200 and 1,500 PSI is ideal. Attach a wide-angle spray nozzle (25 to 40 degrees) to avoid focusing too much pressure on one spot, which could damage the siding. Before diving in, test the spray on a small, hidden area to ensure it’s safe for the material.

While cleaning, keep the nozzle at least 3 feet away from the siding and spray at a downward angle. This helps prevent water from sneaking behind the panels. Stick to cold or lukewarm water and avoid harsh detergents unless they’re specifically labeled as safe for metal siding. For tougher grime or stains, opt for a siding-safe cleaning solution, and be sure to rinse thoroughly to avoid leaving any residue behind.

What safety tips should I follow when using bleach-based cleaners on metal siding?

When cleaning metal siding with bleach-based products, taking proper precautions is key to ensuring safety and protecting your siding. Start by wearing protective gear - gloves and safety goggles are a must to shield your skin and eyes from irritation. Also, make sure you're working in a well-ventilated space to reduce exposure to potentially harmful fumes.

Follow the product's instructions for diluting the bleach. Using it at full strength can harm the metal or nearby surfaces. Be mindful not to let the solution sit on the siding for too long, as it could lead to discoloration or even corrosion. After cleaning, rinse the area thoroughly with water to remove any leftover residue and avoid streaking. If you're unsure about whether bleach-based cleaners are suitable for your specific siding, it’s a good idea to consult a professional for tailored advice.