Best patio cleaner 2025: tried-and-tested picks for pristine paths and patios

On the hunt for the best patio cleaner on the market? With so many leading brands to choose from, it can be hard to know where to start. But if algae and moss are tarnishing your pavers, it's time to get to work.

Whether you're learning how to clean a patio without a pressure washer for the first time or you're hoping to clean paving slabs with one of the best pressure washers in the business, there's a patio cleaner for every surface type and technique.

As Ideal Home's gardens editor, I know how important it is to find the perfect product for your patio. That's why I've enlisted the help of our reviewers to test the best patio cleaners out there. Our tester, Rachael Phillips, has trialled most of the patio cleaners on this list in the garden of her Victorian terraced house in South Wales, but my colleague Lindsey Davis and I tested the final product.

We've even taken before and after photos to give you an idea of what you can expect from each product, with a few pointers to help you apply them if you decide to buy. Beneath it all, we've included a guide to choosing the best patio cleaner for your space, too.

Best patio cleaner - The quick list

Best patio cleaner – tried and tested reviews

Below, you'll find full reviews of each of the best patio cleaners in our round-up.

I'm handing over to writer Rachael Phillips, who tested the products in the back garden of her Victorian terraced house in South Wales. She's tested each one extensively to provide us with the most reliable recommendations. The final product was tested by my colleague Lindsey Davis and I.

Rachael Phillips

'I live in a Victorian terrace with a long, narrow garden that features two small patio areas. As the owner of two small terrier dogs, I was looking for a patio cleaner that would not only be easy to use but also safe for my dogs to walk on after application. Living in Wales, we get plenty of damp days, so I also needed to combat green algae on my paving, and the general accumulation of grime that's built up over the winter months.'

Best patio cleaner overall

Algon Organic Path & Patio Cleaner is an easy-to-use, effective and, best of all, eco-friendly solution for cleaning outdoor surfaces. It's one of the very few patio cleaners on the market that is non-toxic, meaning it's safe for use around wildlife, pets, and children, and it can be used on almost all surfaces, including brick, stone, concrete, wood, slate, glass, and plastic. It comes in a 2.5 litre bottle which covers a 60m² area once diluted.

I used this product in the part of my garden where my dogs run around, so it was great to feel confident that I wouldn’t harm their health whilst still getting rid of the build-up of algae, lichen, and moss on my paving slabs. The application process couldn’t be easier – it just needs to be diluted in a ratio of 1 part Algon to 3 parts water. Once the solution has been diluted it can then be applied to the desired area and just left to work. Algon suggests using a garden sprayer for an even result, but if you’re like me and don’t have one, then you can just apply the solution and use a soft broom or paintbrush to work it into the surface. Like most patio cleaners, it needs to be applied when it’s dry and no chance of rain so if you think there’s some wet weather on its way, it’s best to hold back.

I found this patio cleaner easy to use, especially as it requires no scrubbing or rinsing away. It does have an overwhelming smell of vinegar which, whilst reassuring me that this is an all-natural product, did mean I had to make sure the windows stayed closed after application so the whole house didn’t smell of it. Algon claims that it can take up to two weeks before you see results, but I started to see the moss and algae lifting off the surface within a couple of days and after a week there was a very noticeable difference.

Whilst this organic patio cleaner can't quite compete with the super-fast results that toxic chemical cleaners like the Smart Seal Xtreme Patio Cleaner and Jeyes 4-in-1 Patio & Decking Cleaner achieved, we've given this patio cleaner top billing because its non-toxic formula is a whole lot better for the environment, wildlife, and pets, giving you peace of mind that cleaning your patio isn't causing damage to your garden's eco-system.

Best patio cleaner for pressure washers

Jeyes is one of the biggest names in outdoor cleaning products, so I won’t lie when I say my expectations were high, and I wasn’t disappointed. If you’re looking for a patio cleaner that will give you maximum results with minimal effort, then you’ll love this one. This 4-in-1 patio and decking cleaner is suitable for all outdoor surfaces, including brick, stone, concrete, decking and even fencing, so it’s the ideal solution if you want to do multiple jobs with just one product. It comes in two sizes, and each bottle offers a large coverage area. A 2-litre bottle will cover 99m² once diluted, whilst a 4-litre bottle will cover 198m².

The application process was straightforward. One part solution needs to be mixed with four parts water, or if your cleaning job is light, you can mix it with nine parts water. The diluted mix can then be applied to the surface and just left to dry. Jeyes do recommend that you apply the product with a pressure washer for better results, but this isn’t necessary, and since I didn’t use a pressure washer with other products, I just lightly worked the solution into the area with a soft bristle brush.

Jeyes claim it takes up to three days before you start seeing results but I saw a difference in the colour of the area that was treated once it had dried, which was approximately five hours. I did apply this product around three times before all the moss and algae were gone but considering it didn’t require any manual labour, I was more than happy with that result.

This product isn’t safe for pets or children, so it’s best to ensure that the area is out of bounds whilst it dries. But as well as visibly cleaning the area it can also kill up to 99.9% of bacteria and viruses. So if you have pets, this is a great product to use in the areas where they may be using as a toilet. Whilst I think this product produces faster visible results, if you cannot keep your pets from the treated area for a few hours then the Algon Organic Path and Patio cleaner would be a better option.

Best patio cleaner for fast results

Smart Seal Xtreme Patio Cleaner is described as a fast-acting concentrated solution that will penetrate deep into surfaces to remove black spots, algae, moss, surface grim, and lichens. It comes in a 5 litre bottle which will treat approximately 40m² of patio area.

On testing, I found it super easy to apply. The solution just needs to be mixed with water on a 1:1 ratio and then applied to a wet surface. It’s really important that the area is kept wet for up to an hour otherwise the solution won’t work. Even though you don’t need to, I scrubbed the area with a soft bristle brush before leaving it to work its magic. After an hour it can be washed away with a hose or pressure washer. I washed the area down after a couple of hours and genuinely couldn’t believe how clean the area looked.

This is the best patio cleaner I've used for super quick and effective results. The whole process was easy and the results were fantastic. While I did work the solution in using a brush, it didn’t take much effort. This solution is powerful stuff, however, because of its strength, it’s important to keep all pets and children away from the area until it’s been washed away. It does have a strong chemical odour, which is no surprise given its strength, so you may want to wear a mask whilst applying this to avoid the fumes.

Best multipurpose outdoor cleaner

Jeyes Fluid Ready To Use Outdoor Cleaner is a popular cleaning product that’s been designed for a multitude of cleaning jobs. Whether it’s removing the algae and lichens from your patio, cleaning your greenhouse so your plants can get more sunlight or hygienic cleaning of animal areas this one bottle will do the job. It comes in a small 500ml bottle which covers up to 3.8m², which is about the size of a small pathway. Or there’s a 4-litre bottle that will cover up to covers up to 30m². Both are reasonably priced, and the ready-to-use solution is a real timesaver, although if you're willing to dilute yourself then the Original undiluted Jeyes Fluid Outdoor Cleaner will work out the best value.

Although the ready-to-use formula means there’s no preparation involved, it isn’t without elbow grease as you do have to scrub after application. First, the area has to be cleared of any large debris, then the cleaner is applied and left to soak in for 30 minutes, before giving it a good scrub with a brush. Then the next step is to rinse the cleaner away.

The good thing about this is unlike other cleaners such as the Ultima Plus XP green mould and algae remover, which you have to give some time to get working, this product starts to show results immediately. If you have dogs then I found it's really good at eliminating any odours associated with them. Plus, I noticed that it also lifted the stains in areas where they went to the toilet. The bottle states that it kills 99.9% of bacteria & viruses so again, if children or pets frequent your garden, it’s a really good product to use.

Another thing I like about this cleaner is that it's suitable for multiple jobs. As well as freshening up the patio area, it can also be used for pet housing and even greenhouses to get rid of that algae buildup that occurs over the winter months. It can also be used in all weather. Unlike other products that can be only used on dry days or when there’s no chance of rain for 8 hours, there are no strict conditions for using this. Which again, if you have pets is ideal because you can’t always wait for a sunny day to come along to clean.

Best value patio cleaner for large areas

Pro-Kleen Simply Spray patio cleaner is described as a non-acidic, bleach-free cleaner designed for removing algae and moss from patios and other outdoor surfaces. It’s concentrated, so it needs to be diluted with water, but that means that one bottle can make 25 litres of solution enough to cover 200m² which makes it a great value patio cleaner for large areas. It’s also suitable for any hard surface, including patios, paths, tarmac, glass, roofing felt, PVC, terracotta, and even caravans.

The application couldn’t be easier, as the name suggests you just spread it on the area and walk away and leave it. It suggests you use a sprayer but you can also mix it and use it in a watering can. Although, make sure that you don’t use the same watering can as you use for your plants as it can kill plant life and there’s no point having a sparkling patio if your flowers have all been killed off.

I used a bucket to mix 4 parts water to 1 part solution and, made sure the area was evenly covered by working it in with a brush. You could see it starting to work quickly, the area started turning a brown colour within the first hour which is impressive as the directions say it can take a couple of days to achieve that. It needs to be used when there is no chance of rain for at least 8 hours, and when I applied it the solution was down for nearly 24 hours before it started to rain. The results were really impressive. After 3 days I brushed the area down as it had been raining and the algae had almost all gone.

Best patio cleaner for ease of use

Wet and Forget Rapid patio cleaner is a solution that claims to remove tough outdoor stains such as moss, algae, lichen, mould, and mildew from various surfaces, including patios, driveways and decking. Its USP is that the product comes with a spray nozzle that can reach up to 8 metres, allowing you to spray hard-to-reach areas like roofs and gutters. It comes in a 2-litre bottle that covers up to 200m² in just 10 minutes depending on the porosity and how bad the surface is.

On testing, this was a fun patio cleaner to work with. There’s no dilution or pre-mixing required, you just attach a hose pipe, turn the nozzle to on and get spraying. The spray is pretty fierce, so make sure you’re prepared when you turn the hosepipe on because I ended up covering an area way bigger than I intended to. But it’s easy to use, the bottle is a good ergonomic shape so it feels comfortable to hold and direct. The nozzle also means you can accurately reach the area you want to cover and as it can reach up to 8 metres it was perfect for roof areas as well as the patio.

When your area is fully saturated with the product, that’s it, you don’t need to do anything else, you can just leave it. You can actuallyhear this product working. It’s not ideal for pet owners or those concerned about wildlife, as the instructions say the area has to completely dry before animals can walk on it, and even then it’s recommended that paws are washed to avoid your pet ingesting any due to the toxic chemicals used in the solution.

When it comes to results, as Take That famously sang, you need a little patience. This isn’t an instant-result product. Depending on how bad your surface area is, it can take six to twelve months to see the full effects in action. With that in mind, I was quite impressed that some of the algae did seem to be gone after just one week. The instructions suggest adding another treatment after 1-2 months, which I will do because it also says you need to make sure there’s no rain for at least 5 hours and I experienced quite a lot of wet weather after application, so do check back in on this review for an update later on in the year.

Best patio cleaner for building results over time

Sophie tested Wet & Forget Mould, Algae & Lichen Remover on an encaustic tile pathway and was impressed with how easy it was to use.

Though the results weren't instant, over the following weeks and months the seemingly invincible lichen slowly disappeared, leaving the path cleaner than ever. Since it can take months for the lichen to regrow, you can simply reapply a second coat in around three months to discourage any further growth.

Lindsey Davis, content director for homes ecommerce, also tried out the product in 2022. It worked wonders on her concrete patio area, removing even the oldest, toughest algae.

'It certainly does what it says on the bottle,' said Lindsey. 'I brushed this stuff on knowing that if it worked it would have long-term results, but I didn't expect it to still be so clean after two years. This is a shared entryway so I was mindful of using it near the neighbours' pets, but I will be getting their buy-in to cover the rest of the walkway, when safe to do so.' You should let the area dry before allowing pets and children to walk over it.

The results can be seen in the before and after photos below, taken three months apart. It's the best patio cleaner if you want long-lasting results and don't mind waiting a little while for it to work its magic.

Lindsey Davis

Lindsey Davis is the content director for homes ecommerce, looking after product content on Ideal Home. She has tested hundreds of home appliances and accessories, and enjoys the satisfaction of a clean and tidy home – and anything that helps her achieve it.

How to choose the best patio cleaner

Patios are prone to algae, dirt and grime over time, and cleaning them can be a gruelling task. It doesn’t have to be, though – and choosing the best patio cleaner for your space can smooth out the process.

Here’s what to consider when buying a patio cleaner.

Surface type

If you want to avoid damaging your patio, you'll need to consider its surface type. Cleaning a concrete patio will require a different approach to porcelain slabs, for example.

'As a rule of thumb, for concrete, you’ll want to opt for an alkaline-based cleaner, whereas for sandstone or limestone, you’ll want a Ph-neutral cleaner and to avoid any chemicals or bleach that may cause discolouring,' says Simon Wardle, patio expert at Armstrong Cheshire.

If you're considering pairing your patio cleaner with a pressure washer (provided they're compatible), porosity is also a major factor.

'Some stones are more porous and sensitive than others, even if they have been treated, and are more likely to struggle if you use a really powerful jetwash,' explains Martin Beaumont, founder of Monty Miracle.

'Similarly, if you have gravel or grout between the flags, you need to use something that will not blast it away and leave gaps where moss can grow.'

It's best practice to check the label and make sure it's compatible with your patio surface type before you buy it. You could also test the solution on a small area before you tackle the entire patio, just to be on the safe side.

If you notice your patio temporarily changes colour while the cleaner is working its magic, don't panic – this is normal, and should resolve itself after you've washed the solution away.

Chemical or non-chemical?

Chemical cleaners are faster and more effective at removing tough stains, but they can be very damaging to the environment and wildlife, and may not be safe for pets.

Non-chemical cleaners, on the other hand, are gentle on the environment and safer for use on delicate surfaces, although they may take a few more applications or some elbow grease to remove particularly tough stains.

'Opting for an eco-friendly cleaning agent is crucial for protecting waterways and wildlife, ensuring no harsh chemicals are being washed away into natural water courses or borders of the garden,' says Trevor Knight, technical garden and driveway specialist for Marshalls.

Some patio cleaners contain very strong chemicals which can be hazardous, especially if ingested or inhaled, so it’s really important to consider health and safety and use cleaning solutions responsibly.

Always read the label carefully, especially if you're using the outdoor cleaning solution around children or pets. If you have allergies or respiratory issues, then choose a patio cleaner that is labelled as hypoallergenic or non-toxic, and always wear a mask and gloves when applying toxic patio cleaners.

Ease of use

Removing black spots from a patio can be an arduous task, but it largely depends on the application style of the product you choose.

Some cleaners simply need to be applied to the surface and left alone, while others require you to scrub the area and potentially rinse or jet-wash the space once it’s had a chance to permeate the surface. Some cleaners require you to dilute the solution, whereas others are already mixed and ready to apply.

You'll also need to consider which tools you'll need. Patio cleaner is typically applied either by pouring the solution directly onto the area or by using a garden sprayer.

Often, by using a garden sprayer, you can get a more even coating of your chosen patio cleaner which will, of course, produce better results.

A watering can is another way to apply patio cleaner, but make sure you don't use it to water your garden directly afterwards – especially if you’re using a chemical-based cleaner.

How we test patio cleaners

'I tested each of these patio cleaners on concrete patio slabs in various areas of my garden,' says Rachel. 'I'm the owner of two dogs and also live on a hill where water can pool after wet weather, meaning that each cleaner had to fight through a lot of algae and grime.

'I followed the instructions on each bottle to the letter and checked the results after 24 hours to note the progress but the final results were after the cleaner had been on the area for 7 days.

Rachael Phillips

'I live in a Victorian terraced house in South Wales with a long, narrow garden that features two small patio areas. As the owner of two small terrier dogs, I was looking for a patio cleaner that would not only be safe for my dogs to walk on after use but one that would help to remove doggy odours as well as removing green algae and dirt buildup that’s occurred over the winter months'.

'All cleaners were judged based on one application, but some cleaners require multiple applications or a longer period before they display the optimal results. Where this is the case, I’ve made a note of it and highlighted it during the review.

'The patio cleaners were tested during dry weather, but as these were tested during spring, they did have to contend with regular rainfall, so the results may vary (in a positive way) if you apply them during the drier months of the year.'

FAQs

How do I keep my patio slabs from turning green?

If you've noticed your paving slabs turning green, you'll probably need to learn how to remove moss from a patio, or algae.

'Algae is an organic growth that develops quickly in darker, damper conditions, so you are more likely to see it in the corners that do not get natural sunlight, or towards the end of the winter months,' explains Martin from Monty Miracle.

If you're hoping to keep it at bay, Martin recommends using a quality sealant which can be applied to the patio without rinsing.

'A quality sealant will protect your patio from the elements for months and prevent algae from developing,' he continues. 'The most effective prevention strategy involves regular maintenance cleaning, typically one to two times per year.'

Does white vinegar clean paving slabs?

We all know that vinegar can be used for cleaning various things around the home, but is it an effective patio cleaner?

It's certainly a natural, budget-friendly approach, but patio cleaning experts warn it could harm animals.

'While we recognise that some homeowners may want to adopt a cheaper, more natural approach, the truth is that it is still acidic, so it can be harmful to plants and pets,' says Martin from Monty Miracle. 'It also needs to be left for a long time and requires vigorous scrubbing.'

If you're looking for ways to clean other garden surfaces, make sure to check out our guide on how to clean decking.