In this guide we’ll take a look at the best patio cleaners for the UK market.
I’ve compared effectiveness, how long it lasts, product safety and cost
to give you my top recommendations.

What is the Best Patio Cleaner?

In a rush? Here’s my top choice…

Pro-Kleen Patio Cleaner

Powerful and long-lasting results! Cleans patios, fences, sheds, caravans and more!

This Pro-Kleen Patio Cleaner will keep your patio free of mould and algae. It can also be used on fencing, sheds, caravans, conservatories and uPVC windows. One 5 L bottle creates 25 L of diluted solution making it great value for money. Simply spray on the patio and leave to work – no scrubbing needed! Will stop mould and algae growing back for weeks and months to come.

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Everything I Recommend

IMAGERECOMMENDED PRODUCTSPRODUCTFEATURES
  • Removes mould and algae
  • Very easy to use
  • Safe on hard surfaces
  • Treats up to 300 m²
  • Easy to apply
  • Environmentally friendly
  • Easy to apply
  • Safe to use and biodegradable
  • Treats up to 85 m²
  • Powerful and effective
  • Inhibits future black spot growth
  • No need to pressure wash
  • Very effective solution
  • Safe for kids & pets
  • Results last a whole year!

More Detailed Patio Cleaner Reviews

Pro-Kleen Patio Cleaner

FEATURESRATINGPRICE
FEATURES
  • Removes mould and algae
  • Very easy to use
  • Safe on hard surfaces
OUR RATING
100

PRICE

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Pro-Kleen Patio Cleaner Review

This Pro-Kleen Patio Cleaner removes all mould and algae from your patio, paths, decking or any other outdoor surface. If you want to get them looking like new, this is one powerful product that will help you achieve it!

It can also be used on fencing, sheds, caravans, conservatories and uPVC windows. You’ll fall in love with how easily you can remove all sorts of grub and grime with this, the best patio cleaner on the market.

The concentrated formula is effective but safe to use. It does not contain bleaches or acids which means that there is no need to exclude children or pets from the area once the product is dry.

To use this pet-friendly patio cleaner, simply dilute 1-part cleaner to 4-parts water, then apply with a garden sprayer or watering can. That’s it! There’s no need for scrubbing or rinsing (which is always excellent news!).

It comes in a 5 L bottle which is enough to make 25 L of diluted solution – you won’t use that up in a hurry!

The cleaner gets to work immediately and within a few days your patio will be free of mould and algae. It really is the best patio cleaner for clearing mould, and also prevents the growth of mould and algae over the coming weeks and months. Your patio will keep looking its best all summer long!

Wet & Forget Moss Mould Lichen & Algae Remover

FEATURESRATINGPRICE
FEATURES
  • Treats up to 300 m²
  • Easy to apply
  • Environmentally friendly
OUR RATING
95

PRICE

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Wet & Forget Moss Mould Lichen & Algae Remover Review

This Wet & Forget Moss Mould Lichen & Algae Remover is safe and effective for use on a wide range of materials from teak to marble.

It is non-acidic, contains no bleach and is biodegradable. One bottle will treat up to 300 m², although this does depend on how porous the material being cleaned is.

Again, the product is very simple to use, simply dilute and apply with a spray or watering can and let it get to work. You can then head off to have a nice cup of tea – your work here is done!

This product continues to work over the coming weeks and months and is actually reactivated each time it rains (plenty of opportunities for re-activation in the UK, then!).

It will remove moss, mould and mildew and also gently remove any unsightly stains from all outdoor surfaces.

As with the other products, once dry it is safe for children and pets to use the treated area. It’s easily one of the best patio cleaner products available because it’s so effortless to use and effective, plus will cover a really large area.

Patio Magic! Mould & Algae Killer

FEATURESRATINGPRICE
FEATURES
  • Easy to apply
  • Safe to use and biodegradable
  • Treats up to 85 m²
OUR RATING
92

PRICE

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Patio Magic! Mould & Algae Killer Review

This Patio Magic Mould & Algae Killer is suitable for use on a variety of outdoor surfaces: patios, decking, driveways and fencing.

Plus, it can also be used to treat mouldy walls and fences before painting then, helpfully removing mould that would otherwise ruin the finish of the paint.

This patio cleaner is very easy to use, simply spray it with a low-pressure sprayer, or use a watering can with a fine rose, then leave it to get to work.

Patio Magic kills green mould in 2-4 days and continues to clean the treated surfaces in the following weeks. As a result, the effects of the product last for months after the initial application. One bottle will cover up to 85 m², likely to last a long time considering how infrequently you need to re-apply the product.

The product is safe to use and children and pets can enter the treated area once the product is dry. Again, this is one of the best patio cleaners for fuss-free application, working effectively with limited effort required from you!

Smartseal Patio Clean Xtreme

FEATURESRATINGPRICE
FEATURES
  • Powerful and effective
  • Inhibits future black spot growth
  • No need to pressure wash
OUR RATING
85

PRICE

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Smartseal Patio Clean Xtreme Review

The Smartseal Patio Clean Xtreme is a powerful patio cleaner, designed for removing stubborn black spot from block paving, concrete and natural stone.

This highly effective cleaner contains 4 powerful active ingredients, including biocide to inhibit future growth of mould and black spot. It will clean your patio quickly and thoroughly, diminishing the need for a full pressure wash.

When treating black spot this product states it should be used neat, and for all other moulds dilute at a ratio of 1:1. It can be left on the surface for up to 60 minutes before needing to be rinsed off.

It’s the best patio cleaner for tackling black spot and will really help you get a clean finish out of a difficult-to-treat patio.

Algon Organic Path and Patio Cleaner

FEATURESRATINGPRICE
FEATURES
  • Very effective solution
  • Safe for kids & pets
  • Results last a whole year!
OUR RATING
82

PRICE

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Algon Organic Path and Patio Cleaner Review

This Algon Organic Path and Patio Cleaner will remove dirt, mould and lichen, as well as kill weeds and moss. Plus, it’s safe to use on wood and hard surfaces so there’s almost no limit to what you can clean!

The environmentally friendly ingredients are biodegradable and safe to use around pets and children because the product contains no bleach or acids.

To use this product simply dilute it at 1-part Algon to 3-parts water then apply with a sprayer, soft broom or watering can. Algon also makes a ready-to-use version of this product which has a sprayer. It’s not as cost effective but is useful if you have just a small area to spray and don’t want to invest in a pressure sprayer.

In a few days, mould and lichen will begin to disappear, stains will be removed, and your patio or decking will begin to look like new. Much like the other best patio cleaner products, this patio cleaner also goes on working, reactivating each time it rains, for up to a year.

Things to Know Before Buying Patio Cleaner

Despite living in the unpredictable UK climate, we still spend a lot of time in the garden – even when the weather isn’t on our side!

Of course, one thing that can put us off enjoying our patio fully is an ugly covering of mould. Mould, grime, algae… it can all make an appearance, and can be quite slippery and dangerous too. Luckily, giving your patio a spruce up with a specially-designed patio cleaning solution is a fast and effective way to get your garden looking great before the sun comes out!

There’s a huge range of patio cleaners on the market, which can make it tricky to find the best one. If you’re looking to purchase patio cleaner but aren’t sure what to go for, the following tips will help you make an informed choice:

While a pressure washer is a good option when it comes to cleaning your patio, they are far more expensive than patio cleaners and certainly require you to put more work in. Jet washers can also damage your patio if used too often.

Areas that are grouted can be dislodged by vigorous scrubbing or jet washing, so for grouted patios it’s especially  recommendable to use a patio cleaner over other cleaning methods.

Patio cleaners don’t require fierce scrubbing or hard work. In fact, they often require next to no work from you at all. With most patio cleaners you simply have to mix the solution, then spread/spray it over the patio – and that’s it! The best patio cleaners don’t even require you to rinse the area. Plus, these products won’t damage the surface or affect the colour of your patio.

While jet washers are great for deep cleans every so often, for a quick spruce up which will really make a difference and have lasting results, a patio cleaner is really all that’s needed.

Patio cleaners can contain a range of chemicals, both safe and unsafe for humans.

When looking to buy a patio cleaner, it’s advisable to look for an eco-friendly patio cleaner that won’t harm children, pets or wildlife. There are plenty out there, and it’s a good way to give you peace of mind when using it – there’s no need to use chemicals that are harsher than necessary to get the job done!

As a general rule, it’s a good idea to let your patio dry before you allow your kids or pets back outside.

Patio cleaning solution is generally very easy to use. Different brands require different levels of dilution, but it’s not difficult to measure out the formula into a separate container.

You may find it useful to pay attention to how much area one bottle of product can cover. Depending on the dilution ratio, plus the size of the bottle, some products offer better value for money than others. If a product lasts longer this also makes it easier to use as it will be readily on hand for more applications.

Patio cleaners can also be very versatile, with some solutions not only able to clean patios but other hard surfaces which also attract algae and mould, such as caravans and window frames. The Pro-Kleen Patio Cleaner, for example, can be used to clean roofs, fending, uPVC windows and motor homes! Having a versatile product can make it even better value for money, as well as make your life easier by not requiring you to buy separate cleaning products.

Lastly, there are products which don’t need rinsing. These can really save time and are so simply to use. After applying the solution you simply wait for it to dry, and that’s it! No need to return to wash it off. It’s certainly something to look out for if you’re looking for really hassle-free patio cleaning.

Patio cleaners can vary in terms of how long they keep delivering results for.

The majority of products are long lasting, with some able to keep mould and algae at bay for up to 12 months after the initial application.

As seen in the product reviews on this page, some patio cleaners ‘reactivate’ when it rains. These tend to be the products with the longest-lasting effects because there’s no need to re-apply manually, they’ll just get back to work when there’s precipitation.

You’ll  also find that there are some cleaners which are better suited to giving longer-lasting results when treating different types of mould. If you’re having a particular problem with black spot mould, for example, the Smartseal Patio Clean Xtreme states it can be used neat to specifically target this type of issue, keeping it effectively at bay.

As mentioned, patio cleaners generally require dilution. It’s good practise to check the dilution of the patio cleaner you’re looking at – some smaller bottles may be better value for money than larger bottles if they are more concentrated.

If you have a very large patio, look for a patio cleaner that covers a wider area. Most bottles of patio cleaner will list the coverage area in square metres, so you can check how many cleans each bottle will give you.

Patio Cleaner FAQs

Routine brushing will keep it free of falling leaves and debris, but removing stubborn dirt will require the use of a patio cleaner. You can use a pressure washer or patio cleaning product. Be careful as pressure washers may damage grouting.

Using a pressure washer: Make sure your patio is swept and clear, and always start with a low setting. Increase the pressure gradually. Remember that whilst very high pressure might be the most effective, it can damage the surface of your patio. Work from a shallow angle and from a good distance to prevent putting exerting too much pressure on your patio slabs.

Using chemical cleaner: Ensure your patio is clear and swept. Remove any plants or furniture. Create your cleaning mix (most solutions will need diluting). Use a watering can to distribute the cleaner evenly all over your patio. Leave to soak according to the manufacturer’s instructions. Rinse if necessary.

  1. Apply your patio cleaner on an overcast day when rain is not expected.
  2. Check the directions on your patio cleaner to see if it needs diluting and what ratio of water to add.
  3. Keep children and pets from the area until the product is dry.
  4. Apply your patio cleaner with a low-pressure spray if possible. Alternatively, you can use a bucket and broom, or watering can.
  5. Leave the product to get to work. Bear in mind that the active ingredients in patio cleaners can take a few days to work. On very badly affected patios it may even take a few weeks before all the stains are completely removed.

Use a patio cleaner regularly on hard surfaces to remove mould and algae as these can make your paths and patios slippery and unsafe.

Black spots that grow on your patio are spores from black ichen. They are carried by the wind onto your patio, and they can be frustratingly difficult to get rid of!

Use a patio cleaner that specifically targets this type of mould. You may have to use the product neat. It will also inhibit the mould from returning.

If you are pressure washing your patio, only do so once a year. However, you should still regularly sweep your patio to keep it looking good.

If you are using a simple patio cleaning solution, you can use it up to 4 times a year, or whenever you feel your patio needs a spruce up!

Sources

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