The 10 Best Patio Cleaner Reviews For UK Homes (2022)

Best Patio Cleaner Reviews

Last Updated on January 11, 2022

A well-kept patio is a dreamy sight. But unfortunately, they are also prone to goobers like mould, algae and lichen. If you are tired of these invaders ruining the look of your beautiful patio, then it is time to put your foot down with this year’s top patio cleaners!

Our Top 3 Patio Cleaner Picks
1. The Best Patio Cleaner By Defenders
2. The Best Patio Cleaner For Black Spot Lichen By SmartSeal
3. The Best Biodegradable Patio Cleaner By Wet & Forget

Product Testing & Comparing

Why should you not grab the first bottle of patio cleaner you see? Some can actually stain your valuable patio or decking. Others simply do not work and moss will happily continue to grow despite several applications. Our review team did their best to select and test the top patio cleaners on the market today and after comparing the cleaners against our strict guidelines, only 10 of the most incredible products remained.

While we ranked the cleaners according to our favourites, we also highlighted the following features for each one of them.

  1. The volume of the product.
  2. How big an area the cleaner can treat.
  3. What types of problems the cleaner takes care of.

Frequently Bought Together

The best weather stations.

The top petrol lawnmowers.

The best moss killer for lawns.

The Best Patio Cleaners Reviewed In 2022

1. Defenders STV940 Concentrated Path and Patio Cleaner

The Best Patio Cleaner

the best patio cleaner

Product Specifications

  • Volume: 2 L (concentrated).
  • Treatment area: 25 sq m.
  • Suitable for: Mould, algae, stains.

Our review team selected this patio cleaner as the top product for several reasons but one particular feature caught our eye. The concentrate is biodegradable and non-acidic, making it absolutely safe for families with children, pets, and a passion for the environment.

We also love the fact that this is a stain remover. It can banish unsightly marks from your patio, driveways and even walls.


  • Easy to use.
  • Safe for the environment.
  • Treats a large area.
  • Multipurpose.


  • Causes eye and skin irritation.

View Price & Details

2. SmartSeal Patio Clean Xtreme

The Best Patio Cleaner For Black Spot Lichen

Patio Clean Xtreme 5 L By Smartseal

Product Specifications

  • Volume: 5 L (concentrated).
  • Treatment area: 40 sq m.
  • Suitable for: Blackspot lichen, algae, moss and dirt.

Smartseal Patio Clean Xtreme combines 4 super active ingredients specially designed to burn through surface dirt and grime. Its highly effective formula clears moss, algae, lichen and black spot off your patios in less time. This product is a great way to maintain an attractive look on concrete, limestone, Indian sandstone and block surfaces.

We found that it cleans so well that there is often no need for pressure washing. Fast, strong, affordable and easy to use, the dilution rate of 1:1 allows you to clean a large area – up to 40m² of patio space.


  • Fast-acting 4-ingredient formula cleans dirt off patios in less time.
  • Effective for porous external surfaces.
  • Needs very little water pressure.
  • Kills moss, mould, mildew, algae, green, white, yellow and black spot lichens.


  • Not the best to use for asphalt surfaces or driveways.
  • Highly contaminated areas require longer time or reapplication

View Price & Details

3. Wet & Forget – Moss Mould Lichen & Algae Remover

The Best 30 L Patio Cleaner

Moss Mould & Algae Remover By Wet & Forget

Product Specifications

  • Volume: 5 L (concentrated).
  • Treatment area: 100 to 300 sq m.
  • Suitable for: Mould, lichen and algae.

Our testers discovered that this bottle does not slack off when it comes to delivering the best! Easy to use, you can efficiently remove moss, mould and algae without any special equipment. We gave a thumbs up to the gentle cleaning action that never damaged any of the surfaces that we tried.

Indeed, we tested it on a wide range of surfaces including asphalt, limestone, upholstery, garden furniture, sails, textured finishes, tiles and even painted surfaces. It gave a great outcome every time. So, if you are looking for a non-acidic, non-bleach, and non-caustic cleaner with no shelf life, then this is your guy!


  • Easy to use.
  • Lasts up to a year after application.
  • Can be used with or without a pressure washer.
  • Made with biodegradable materials.
  • Applicable to an extensive range of surfaces.
  • No shelf life.


  • Deadly to aquatic life.

View Price & Details

4. Pro-Kleen Patio & Driveway Cleaner

The Best 2-Can Offer

Patio & Driveway Cleaner 10L By Pro-Kleen

Product Specifications

  • Volume: 10 L.
  • Treatment area: 40 to 64 sq m.
  • Suitable for: Stains, dirt and grime.

Tackling green mould algae on the patio becomes a walk in the park with Pro-Kleen. This highly effective solution is a sure way to remove dirt and grime without stress. We found that it revitalizes driveways and patios that have been abandoned for a long time.

It efficiently removes dirt from block paving, driveways, steps, garden paths, and of course, patios. Pro-Kleen is also easy to use as it is actually most efficient when applied neat. Once applied and left for the stipulated time before washing down, your patio comes up looking as good as new.


  • Best potent and effective formula to take care of your patio.
  • Use this patio cleaner with or without a pressure washer.
  • Easy to use, no mixing.


  • This patio cleaner cannot be used on tarmac and similar dry and hard surfaces.

View Price & Details

5. Jarder Spray & Leave

The Best 4-Can Deal

Spray & Leave Concentrate Cleaner By Jarder

Product Specifications

  • Volume: 20 L (Concentrated).
  • Treatment area: 1 bottle covers 240 sq m.
  • Suitable for: Moss, algae, lichen, mould.

This 4-pack deal is a great choice if you want to treat large areas or perhaps own a business where there are many patios, decking and fences that can do with this treatment. Each bottle covers a huge area using a biodegradable, non-bleach formula that is safe for pets, kids, and wildlife.

Our reviewers also found it easy to use. Just mix, spray and leave to dry for 2-3 days. As a bonus, you can also expect to see the results for up to 6 months, or even a year in some instances!


  • Easy to use.
  • Great for businesses or large homes.
  • 100% biodegradable and safe once dried.
  • Gives continuous protection for up to 6 months.
  • Eliminates the need for a water pressure washer.


  • Takes 2 to 3 days to dry.

View Price & Details

6. ULTIMA-PLUS XP MY1356 Patio Cleaner

Best Multi-Surface Patio Cleaner

Patio Cleaner & Algae Remover By Ultima-Plus Xp

Product Specifications

  • Volume: 5 L (Concentrated).
  • Treatment area: 200 sq m.
  • Suitable for: Dirt, algae.

Our reviewers love products that offer benefits outside of their original purpose. More simply said, you can clean other things with this concentrate besides your mossy patio! Indeed, we used it with great effect on fences, garden sheds, and decking.

It removes dirt, moss, algae and green mould, keeping your property pristine. Additionally, the professional-strength fluid works on a wide range of hard surfaces, including stonemasonry, asbestos and terracotta pots.

This pet and environmentally friendly patio cleaner contains neither bleach nor acid and doesn’t discolour surfaces. The fact that you don’t need to rinse after using it on green moss is a massive plus among users.


  • Super concentrated formula.
  • Wide applications.
  • Easy to use.
  • Suitable moss cleaner for use on all hard surfaces
  • 100% biodegradable and environmentally friendly.
  • Does not stain surfaces.


  • Long-term toxicity to aquatic life.

View Price & Details

7. Pro-Kleen Patio Cleaner Simply Spray and Walk Away 

Best Potent Moss Remover

Simply Spray & Walk Away Cleaner By Pro-Kleen

Product Specifications

  • Volume: 10 L (Concentrated).
  • Treatment area: Unspecified.
  • Suitable for: Green mould, moss and algae.

This highly potent concentrate can banish green mould, algae and moss from most hard surfaces. You can confidently use it on wood, decking, PVC, concrete, terracotta, glass, plastic, tarmac and many other surfaces. It’s also effortless to apply – just spray and stroll away!

With no shelf life, you also don’t have to worry about losing the concentrate if you only use it now and again. You might just discover you don’t need it that often! After application, the results can stay apparent for several months.


  • Easy to apply.
  • Biodegradable.
  • Ideal green mould and algae cleaner.
  • Non-acidic, non-caustic and no bleach content.
  • Pet, plant, and environmentally friendly.


  • Profoundly affected areas will need a second treatment of this green mould and algae remover.

View Price & Details

8. Patio Magic! Concentrate ‎B001VEJCLM

Best Antibacterial Patio Cleaner

Patio Cleaner 2.5L By Patio Magic!

Product Specifications

  • Volume: 2.5 L (Concentrated).
  • Treatment area: Unspecified.
  • Suitable for: Green mould and algae.

This highly concentrated, long-lasting solution is a fantastic treatment for green mould and algae. You can use it on tarmac patios and Perspex. As a bonus, this cleaner can also get rid of dark mould and lichens.

It also doubles as a pre-paint fungicidal wash. The antibacterial formula disinfects surfaces, keeping them free from organic grime and eliminating the need for a pressure washer. If you love nature, then rest assured that this bottle also contains fluid that is fully biodegradable.


  • Works in days and lasts for months.
  • Suitable for both indoor and outdoor surfaces.
  • No need for a pressure washer.
  • Pre-paint fungicidal wash.
  • Environmentally friendly.


  • Can cause serious eye damage.

View Price & Details

9. PatioWiz Patio Cleaner 5L Concentrate

Best Long-Lasting Cleaner

best long lasting patio cleaner

Product Specifications

  • Volume: 5 L (Concentrated).
  • Treatment area: 220 sq m.
  • Suitable for: Mould and grime.

Our review team loved this cleaner for its versatile nature. There was literally not a spot outside that we could not clean with this thing. Even better, the results are long-lasting and can keep mould and other goobers away for as long as nine months. It’s effortless as well; you simply spray it on and walk away – no scrubbing required.

Within a few days, we noticed that problems started to disappear and not just mould. This non-staining formula also took care of algae, lichens and mildew.


  • Suitable for decking, fencing, roofs and patios.
  • Easy to use.
  • Multipurpose.
  • Lasts for up to 9 months.


  • Toxic to aquatic life.

View Price & Details

10. Algon Organic Path and Patio Cleaner Concentrate

Best Organic Patio Cleaner

Organic Path And Patio Cleaner By Algon Ltd

Product Specifications

  • Volume: 2.5 L (Concentrated).
  • Treatment area: 60 sq m.
  • Suitable for: Lichen and black mould.

Algon Organic cleaner is a fantastic garden path and patio cleaner which effectively takes out algae, grime, dirt and moss. A potent concentrate, it is tough on grime but gentle on your garden path and patio surfaces. The environmental-friendly formula also makes it safe for pets and children after drying.

Our reviewers found the application quite straightforward. It can be spread using a sprayer or even a brush, then left to dry. This product does not need to be washed off afterwards. You can expect it to keep on working for as long as a year after the first application.


  • Keep your patio looking new.
  • Organic, eco-friendly ingredients.
  • Easy to apply.
  • No need to rinse off.
  • Long-term protection.


  • Can cause severe eye damage.

View Price & Details

Your Patio Cleaner Buying Guide

A patio infested with algae, mould and dirt can be a nightmare. But this frustration can get worse when you buy an ineffective product or one that is not strong enough. Our guide will help you to find the perfect cleaner for your home!

How Infested is My Patio?

Before selecting a product, ask yourself if it will be efficient enough in both quality and volume. The higher the infestation, the more solution you might have to apply. In most cases, getting a highly concentrated patio cleaner might be the solution you need.

How Does It Work?

If you’re looking for a solution that would require minimal effort, you should purchase a ‘Spray and Leave’ product. These patio cleaners only require you to apply to the affected areas and leave for a stipulated time. While some promise results in under hours, others might take days, but eventually, you wouldn’t have to do anything yourself.

What Kind of Surface am I Treating?

This might be perhaps the most crucial factor to consider before getting a patio cleaner. Generally, the best patio cleaners are designed to work most efficiently on specific surfaces. There are patio cleaners for concrete, limestone, wood, decking, block paving, tarmac and many others.

How Much Space am I Working With?

The best patio cleaners are concentrated and can be diluted. If your patio is large, search for heavily concentrated products. When diluted, they can cover a couple of hundred square metres.

Is it Eco-and Pet-Friendly?

Fortunately, the best patio cleaners are made with pet-friendly materials, but it doesn’t hurt to double-check. Environmentally friendly patio cleaners usually advise that you wait a stipulated time before letting your pets and even your kids on the patio. They’re also entirely biodegradable.


Q: How to clean patio paving slabs?

A: Simply use a stiff brush broom to agitate the moss and weed growth or apply a vegetation killer before cleaning the patio paving slab. The latter can take up to two weeks for full results.

Q: How to clean a patio without chemicals?

A: You can use vinegar to clean your patio. Mix in water or use neat and apply with a squirt bottle before scrubbing about 20 minutes after application. You can also spray it off with a power washer.

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About the Author Harry Thompson

Involved in home renovations throughout his life, Harry is an expert in everything to do with home and garden DIY. In his spare time, he enjoys cooking and tending to his garden.