Top 5 Best Aluminum Siding Cleaners

Best Aluminum Siding Cleaner

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When owning a home or shop building with aluminum siding, it can be tricky to get into all of the nooks and crannies to ensure everything is squeaky clean. Stains and mildew can lurk in the tiniest cracks and make a pretty big impact on the overall appearance of your building. Luckily, there are plenty of products out there to assist you in making sure your aluminum home is sparkling clean! Here are five options for the best aluminum siding cleaner products.


Best Aluminum Siding Cleaner

[products_table label_1=”Best Overall” label_2=”Best for Rust” label_3=”Best for mold and mildew” label_4=”Eco-friendly”]

Aluminum Siding Cleaner – Buying Guide

Cleaning aluminum siding can be a lengthy and strenuous process. Fortunately, these products can help cut down the work time and effort greatly. Let’s look at what exactly makes these products effective and how you can choose which will work best for your cleaning project!

Are you short on time or just want a quick answer?

Check out our list below for a summary of our results.

[products_list details_1=”Our Overall #1 Rated Pick” details_2=”Great for Rust” details_3=”Best for mold and mildew” details_4=”Eco-friendly”]

How to clean aluminum siding

When cleaning aluminum siding, there are several approaches you can take. Many people choose to use a pressure washer for washing aluminum siding since it makes the job immensely easier and generally cuts down the time required to clear out bigger staining and larger messes.

Power washing aluminum siding is suitable for most projects but if you notice any loose or damaged pieces, mildew, or other issues, it may be best to use a brush to get a deeper clean without risking damaging your home by pushing water into already degraded areas. If there are any damaged spots, repairs should happen before pressure washing or you should opt for a more gentle and less invasive method.

How to remove aluminum siding stains

If you are attempting to remove more intense, set-in stains, you can use a hands-on treatment to target the dingy areas. Mix your cleaning solution in a bucket and use a soft brush or cloth to apply a liberal amount to the stained area and scrub gently until the spot has faded. Then, follow up with a pressure washing treatment and repeat as needed.

When looking at how to clean painted aluminum siding, you have to use a more gentle method to prevent the paint from chipping if there are damaged areas in the paint. If there are areas where the paint is peeling, it is a good idea to remedy that issue before power washing or scrubbing to prevent further damage unless you are planning on repainting anyways.

How to remove mold from aluminum siding

Treating mold on aluminum siding can be trickier than just removing the spot with a cleaner. To kill off the source of the mold, mix up a solution of one part bleach to four parts water and scrub the area liberally. This should kill it at its source and aid in preventing the spot from reforming.

Alternatively, mildew on siding is much more difficult, as it tends to reoccur more frequently and easily. Mildew lurks in cracks and areas that do not see much light, making it hard to notice until it has already spread. The treatment for mildew is similar but may have to be repeated more often since it regrows more easily.

How to pressure wash siding

As mentioned in the how to clean house siding segment, pressure washing siding is a very effective and time-saving way to approach cleaning your home. To power wash your home, mix the cleaner to the labeling’s specifications and use it as it says to. Then, simply use the power washer to scrub away the residue and staining with ease instead of opting for a hands-on brush method.

This method of restoring aluminum siding can prove especially effective for older stains and spots, as the high pressure of the cleaner works to blast off and sort of resurface the spot, exfoliating and eroding away any residual staining surface area. It is also great for cleaning aluminum siding oxidation for the same reason.

Power washing requires precautions. You should wear appropriate safety gear, as dictated by your instruction manual and you should always ensure there is no chance of you accidentally spraying someone, as high-pressure water cleaners can break the skin and cause serious injury if they come in contact with a human or animal. They should also not be pointed at windows or cars unless the product in use is specifically designed for these types of applications, which most are not.

The Best Aluminum Siding Cleaner

Here are some of our picks for the best aluminum siding cleaner products. These were selected due to their customer reviews, effectiveness, price, and a host of other factors that were utilized to indicate the value and overall performance of each product listed below.

Zep House and Siding Pressure Wash Cleaner

Zep House and Siding Pressure Wash CleanerAmazing for deep stains and hard to reach places, the Zep House and Siding Pressure Wash Cleaner is fantastic for a ton of different cleaning applications. When paired with a pressure washer, this product cannot be beaten. It works on mold, mildew, algae staining, and time-related wear and tear beautifully, restoring the luster and appearance of even old siding. As a gentle, yet effective cleaner, this product works to deeply exfoliate the surface of the aluminum, removing set-in stains with ease. There are some reports of streaking and chemical resistance in some mold strains but aside from that, this product is a solid choice that will likely serve you very well.

AL-NEW Aluminum Restoration Cleaning Solution

AL-NEW Aluminum Restoration Cleaning SolutionAs one of the best cleaner for aluminum siding candidates, this product has rave reviews across the board due to its effectiveness and general ability to tackle even the hardest, oldest stains and rust spots. It works to remove chalky residue from painted aluminum siding and regular siding issues while restoring luster and color in a single wipe usage. This concentrated cleaner is fantastic for making old homes look new again and adds an extra layer of corrosion protection once it dries to help prevent future damage and issues. This product also does not require masking, pre-stripping, or pre-cleaning to work, making it a one-step wonder that gets the job done in no time! The company notes that this product is safe for everything from simple surfaces like walls and garage doors to more delicate zones like light fixtures and patio furniture due to its gentle yet impactful nature that works well without leaving a residue or possibly damaging the aluminum surface.

MOLD ARMOR CLEANER for Aluminum Siding

MOLD ARMOR CLEANER for Aluminum SidingManufactured by Mold Armor, this house wash product is designed to specifically target mold and mildew while treating against a host of other common household issues. As one of the best cleaners for siding, this product works to clean and renew almost any outdoor surface through a unique garden hose attachable design and potent cleaning formula. The nozzle is designed to reach even the second story of a home without a ladder and is supposed to work within ten minutes as part of the brand’s product guarantee. Designed to be durable and reusable, the nozzle and storage basin are made to last through multiple uses, offering you the ability to fully utilize all of the product within the container without worrying about exposure or clogging issues down the road. All in all, this product is easy to use and fast working, making it perfect for smaller mess or in between cleanings, as well as more intensive projects.

Simple Green Oxy Solve House and Siding Pressure Washer Cleaner

Simple Green Oxy Solve House and Siding Pressure Washer CleanerAs one of the best cleaner for aluminum candidates that protects the planet and your home in one go, the Simple Green Oxy cleaner is perfect for those looking to tidy up without releasing potentially harmful and groundwater damaging chemicals into the earth. This product is great for a multitude of surfaces including vinyl, aluminum, stucco, wood, and brick. It works extremely well to remove staining from algae, mold, mildew, and fungus without stripping paint or coatings due to its formula using peroxide in the place of more dangerous and damaging chemicals. Plus, this cleaner is also orally non-toxic, making it a good choice for those with pets and children in the home. As a product where a little goes a long way, this cleaner can cover over 6,400 square feet and works extremely well on multi-level homes and structures.

CHOMP Instant Cleaning and Removal of Black Streaks

CHOMP Instant Cleaning and Removal of Black StreaksWith a name that includes the phrase, “World’s Best”, you should expect some pretty great results. Fortunately, this product seems to live up to the self-granted hype! CHOMP’s siding cleaner contains some of the best chemical to clean aluminum options available in its unique, deep penetrating formula. Eco-friendly and non-toxic, this powerful product claims to be able to remove stains caused by mold, mildew, and algae, as well as time on a host of surfaces including aluminum, vinyl, and steel. The brand does recommend pairing this product with the CHOMP extendable gutter tool to reach harder to clean spaces but otherwise, it is usable with a pressure washer or scrubber of your choice. Just be sure to dilute the formula properly to prevent mechanical issues or paint removal. The formula is very strong and can be abrasive to some surfaces but, for the same reason, acts as one of the best degreasers for aluminum.


When deep cleaning your siding, you want to see physcial results and trust that the problem areas have been treated on a chemical level. Due to this, you need a product that you can fully put your faith in. The options listed here are all fantastic and will serve you very well in most situations. Look at the individual listings and specifications, along with the reviews before purhcasing and you should be all set to start scrubbing!

Susan G Baird

Susan G Baird

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