How To Remove Black Spots from Patio

How To Remove Black Spots from Patio Pavers Pathway or Driveway – What are the black spots or stains that stubbornly remain on your patio, pavers or driveway after you have jet washed it? Mostly they are an organic growth called black lichen, and they grow and spread, the only way to remove them is to treat them with Sodium Hypochlorite.

There are numerous methods and products out there on the market that claim to be the best way to clean off black spots on your patio. But, how can you know for sure which ones work, let alone the best, cheapest, and most effective ways of getting your patio sparkling?

Discussed in this article are three of the best patio cleaning products on the market, whether they’re any good, and how you use them.

Remember to always test a small, discreet area of paving using these products to see if you are happy with the results.

What is the best patio black spot remover?

Sodium Hypochlorite is my first choice,

1. Simply mix with water, 50/50,

2. spray on the jet washed patio and brush in, or add a 50/50 mix of Sodium Hypochlorite and water in a bucket, using a soft broom brush the solution across the pavers.

3. Repeat until the hard surface is free of black spot,

4. If you have pets ensure you rinse the area thorouly once cleaned. Allow 24 hours before you let your dog or cat out.

5. Be very careful around ponds.

We use it on our customers paths and patios to good effect, click the image, read reviews and purchase. YOU WILL NOT BE DISSAPOINTED.

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Pro-Kleen Ultimate Black Spot Destroyer for removing black spots from paving slabs, Patios and Driveways


Pro-Kleen Black Spot Remover is very user-friendly and easy to apply. You simply apply it evenly on your infected surface and wait for at least 2 hours before rinsing thoroughly.

How do you apply Pro-Kleen Black Spot Remover? There are a number of ways for applying this product to your patio, paving, driveway, or path. If you do not own a pressurised sprayer, you can use a watering can or a hose sprayer end. A pump sprayer is best as it applies Pro-Kleen evenly and effectively. 

If you are covering an area larger than 40 square metres, you can buy a multi-pack at a discount price. 

Pro-Kleen Black Spot Remover contains sodium hypochlorite. Always keep away from children, pets, and wildlife. Be aware of run-offs into ponds and gardens. This product cannot be used to clean artificial grass.

Patio Magic

What is Patio Magic? –  Patio Magic has good reviews around the web and is used to remove mould, algae, and mildew on patio paving slabs. It can be used indoors, but its main purpose is outdoor use. It requires very little effort and the results are often satisfactory.

Is Patio Magic any good? Patio Magic kills organic growth such as green mould and algae. It takes between 2 to 4 days to fully work. Over the next few months, it will clean the hard surface it has been applied to, which is usually paving slabs. 

You simply dilute the concentrate and apply it to your paving slabs. You can use a pressurized-sprayer for even coverage. If you don’t have one, a watering can suffice. 

Use a 4 to 1 ratio and apply it when your patio is completely dry for the best possible results. Patio Magic is popular as it does not contain harmful bleaches or acids.

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Is Patio Magic any good?

The good thing about Patio Magic is that you can use it to clean your patio without a pressure washer. Patio Magic does all the hard work for you when it comes to cleaning your patio thoroughly. You can use it on a variety of different hard surfaces such as patios, paving, brick, walls, driveways, and other paved areas around your property. 

The results of Patio Magic may take longer to show than others on the market, so patience is required.

Patio Magic will also kill and control most algae, moulds, and moss on your patios and driveways. It takes one application. 

What does Patio Magic contain?

Is Patio Magic harmful to pets?

Although Patio Magic is completely acid and bleach-free, it is always best to keep children, pets, and wildlife away from it when it is applied. Once it is dry, it is safe to walk on. However, make sure to clean any paws that accidentally touch the recently applied Patio Magic.

Please be mindful of nearby ponds. Runoff from Patio Magic may cause harm to aquatic life. 

Will Patio Magic kill plants?

Patio Magic does not contain acids or bleach. But, if you do accidentally get some on plants, please spray them down with clean water immediately. 

Patio Magic does not harm the environment and breaks down naturally.

Always exercise caution and take safety measures when using this product. All possible health and safety concerns are mentioned in the papers that come with Patio Magic.

Does Patio Magic remove dirt?

Patio Magic’s main use is removing all things green. Green mould, algae, and other green slimes seems to be taking over your patio. If you are looking for a patio cleaning product that focuses on getting rid of dirt and black spot on your paving slabs, Patio Magic may not be for you.

Water damage can cause a number of issues in a home including mould, mildew, and dampness. It can also rot and decay parts of your home, especially wood.

So, we would say it is best to get the moss from your roof removed sooner rather than later. The cost of removing moss roof doesn’t even compare with the cost of getting your roof repaired or replaced.

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Wet & Forget - Moss, Mould, Lichen, & Algae

How does wet and forget work? – All through the UK, homes, and properties are infected with mould and mildew. What is the best way to get rid of mould and mildew? One of the best products for quick mould removal is Wet and Forget. Wet and Forget can be used throughout the home – both inside and out. 

Wet and forget uses a gentle formula that lifts up and kills a variety of moulds, mildew, moss, and algae. It works after applying and leaving and leaving for the rain to wash away. 

West and forget saves you a great deal of time that would otherwise be spent scrubbing and digging up stuck-on organic growths on your paving, driveway, and patio. As the name suggests, simply wet and forget. But don’t forget to view the amazing results that Wet and Forget accomplish. 

Wet and Forget kills all types of mould. It also helps prevent mould re-growing. Wet and Forget is a brilliant product when it comes to removing mould in and around your home, your patio, driveway, and paving as it keeps the mould away for longer, giving you time to get to the root of the issue.

How long does it take for wet and forget to work?

How long does wet and forget take to work? Wet and Forget will normally take a few days to kick in. But, this is only if the mould or mildew is relatively new growth and it’s not too thick. If the mould, mildew, moss, or algae is mature and has been on your patio or wall for a long time, you may see results in the next couple of months. 

Use a higher concentration of Wet and Forget for more effective results on thicker growth. 

Is wet and forget safe on skin?

Is Wet and Forget safe on my skin? Wet and Forget can be harmful when exposed to your skin. Wash immediately if you do accidentally get it on your skin. Obviously, do not ingest. Keep it far away from children and pets as ingestion can be fatal. 

What is the main ingredient in wet and forget?

Wet and Forget contains Benzalkonium Chloride. This is effective when used on organic growth such as mould, algae, mildew, and moss. Wet and Forget will not damage the surface it’s being used on such as paving slabs, walls, brick, and other patio and driveway materials as it contains no bleach and no acid. 

What temperature do you apply wet and forget?

For indoor use, apply above freezing temperature. For outdoor use, apply above 12 degrees and when the ground is dry. Don’t apply when it’s very hot and sunny as this may evaporate the Wet and Forget and affect the final results. 

Can you use wet and forget on concrete?

Wet and Forget is perfectly safe for use on concrete. It can also be used on walls, steps, patios, driveways, paving slabs and pavers, brick, asphalt, vinyl, rubber and sidewalks.

Can you use wet and forget with a hose-end sprayer?

If you don’t have a pressurised sprayer, you can use a hose-end and sprayer to cover large amounts of mould and algae.

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How do you remove black stains from paving slabs?

Can Ultimate Black Sot Destroyer remove Black algae and lichen? It can be a pain to get rid of on paving and patios. What, then, is the best, most efficient, and effective way of removing these unsightly stains? 

Pro-Kleen is an inexpensive, fast-acting product that can be easily applied. It kills and removes black algae, lichen, and stains and prevents re-growth. 

Can Pro-Kleen be used to remove black stain from bricks?

Does Pro Kleen Patio cleaner work? Yes, Pro-Kleen will effectively lift black lichen and algae from brick. Black spots and stains can appear on a variety of hard surfaces. From sandstone to concrete, resin, and paving. Pro-Kleen can be used to swiftly remove black stains. 

The black stains on your patio are normally black algae or lichen. Although, they may be other stains. 

Is Pro-Kleen good for removing green mould on grout lines for your patio?

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Yes. To use pro-Kleen, simply apply on a dry day and leave for a couple of hours minimum. Rinse away and see the amazing results. Trustpilot provides Pro-Kleen with a 4.8-star rating. Customers are very happy with the quick results. Cleaning your patio yourself is made easy with Pro-Kleen that does all the hard work for you. 

It is safe to use on Indian Sandstone. It also does not bioaccumulate if the stones are not set on tarmac, washing away in the soil.

Remember to always test this product on a small area before applying it to the entire surface. Always follow the guidelines provided. If an area is particularly infested with black spot, use liberally and with a slightly more concentrated ratio for best results.

Read next : How can I remove moss from my roof – How to clean your roof

We asked AI to suggest a homemade patio cleaner

Here’s a simple and effective homemade patio cleaner recipe that you can try:


  • 2 cups of warm water
  • 1 cup of white vinegar
  • 1/4 cup of baking soda
  • 1/4 cup of lemon juice (optional, for added fragrance)


  1. In a bucket or large container, combine the warm water and white vinegar.
  2. Slowly add the baking soda to the mixture while stirring gently. Be cautious as it may fizz up a bit.
  3. If desired, you can add the lemon juice for a pleasant scent and extra cleaning power.
  4. Stir the mixture well until all the ingredients are fully dissolved and combined.
  5. Pour the solution onto your patio surface and let it sit for 10-15 minutes. This allows the cleaner to penetrate and loosen dirt, grime, and stains.
  6. Use a stiff-bristled broom or brush to scrub the patio surface, focusing on any particularly dirty or stained areas.
  7. After scrubbing, rinse the patio thoroughly with clean water to remove the cleaning solution and any loosened dirt.
  8. Allow the patio to air dry, or you can use a mop or squeegee to speed up the drying process.

Note: It’s always a good idea to test the homemade cleaner on a small, inconspicuous area of your patio first to ensure it doesn’t cause any discoloration or damage. Additionally, this cleaner is best suited for concrete or stone patios and may not be suitable for other materials like wood or delicate tiles.

Remember to wear appropriate protective gear, such as gloves and eye protection, when working with any cleaning solutions.