Patio Clean Xtreme - All Purpose Patio Cleaner

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Customer Reviews

Great company to deal with. Fantastic product, easy to use, patio spotless in no time. Would absolutely recommend this product

By Aine O'Donoghue

Great service and fantastic product. Patio looks cleaner than new

By Aine O'Donoghue

Excellent products. Removed Algae and black spots. Staff very helpful on phone and delivery very prompt

By Anne Kennedy

I am so glad I waited an extra day for delivery of Patio Clean Xtreme rather than buying something in my local hardware store. Our sandstone patio had become seriously discoloured and full of black spots over the years since it was laid. This year it looked awful and my power washer made little impression. I could not believe the results with just one application (ratio 1:1) after just one hour. Not only was it clean but it greatly restored the original colour. I have now completed the job and the patio is literally like it was on the day it was first put down. Do not even consider buying anything else this is the business! TIP#1: some black lichen spots will probably still remain in the worst affected areas. Use a spray bottle on these spots and leave for two hours again using ratio of 1:1 and a small mist of water first. TIP#2: use a stiff yard brush to work in the chemical on the first application having first wet the patio. TIP#3: my only regret is not buying the 25L drum at a greatly reduced price for future years as I used 2 x 5L this year to restore it. I may order the sealer before winter returns. If I do watch out for a future post.

By Adrian Lawlor From Adrian

I bought this with a fair bit of doubt as to whether it would work but was surprised how well it did the job. Followed the instructions and it worked very well. It's the cleanest my sandstone has been since they were put down 8 years ago.

By Robert Scott

Fantastic product. I have tried a lot of other products on the paving and nothing comes close to this. I've ordered the sealer to finish it off. Good company to deal with.

By Thomas Abbey

Wow we couldn't believe how quickly this product worked and it removed all the black spot from our lovely natural stone patio . Delivery was also very quick and efficient will definitely use smart seal again .

By Wendy Tompkins From Tipperary

Excellent cleaner. Sandstone came up like new !

By Pat Rowan

Delivered within 48 hours of notice of dispatch and cleaned the sandstone slabs within 10 minutes of application. You couldn't ask for more.

By George Henry From Athlone

Excellent product. Did exactly what I wanted from it. Removed Algae. Black spot weeds on my cobblestone effortlessly. Would recommend this product to anyone

By Derek Salmon

By Craig Peterson

Brilliant product

By Tomas Statkevicius

Worked very well without any scrubbing. Power washed first, but patio was still 'grubby'. Applied cleaner next day and slabs became 'original' clean while I watched.

By James White

Worked very well without any scrubbing. Power washed first, but patio was still 'grubby'. Applied cleaner next day and slabs became 'original' clean while I watched.

By James White

First class cleaning product. Eradicated long standing black spots on my patio pavers leaving them looking like new. Easy to apply but note to follow carefully the application instructions.No need for high pressure washing.

By Elwyn Morris From Wales

This is a very good Cleaner, Shorten the time of cleaning my slabs and bring my slabs looks like new.

By James Lai

Great product for very little work watching it remove black spot/lichen before your eyes is very satisfying goes along way when applied with a sprayer.

By J Hague From Cheshire Cleansing

The patio cleaner said 'powerful' and it certainly was. It got most of the lichen off but the difference it made to the colour of th Indian Stone was amazing. I should really have ordered a larger tin but having tried other products in the past and finding them to be useless I did not want to risk buying a larger quantity. As it happens I need not have worried, it is very good. Delivery time was quick.

By Joan Danvers From North Yorkshire

I used the Patio clean Xtreme 60 on my Indian stone patio and I'm delighted with the results. Not only did it remove the black spots but brought the colour back too. Best Regards Martin Warner

By Martin Warner From Hemel Hempstead
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Frequently Asked Questions


Sandstone Patio Cleaner & Brick Patio Cleaner

An effective natural stone patio cleaner that quickly removes dirt, algae and lichen.

Patio Clean Xtreme is a powerful patio cleaner that will transform all types of patio, including natural stone, flagstones, block paving and crazy paving. Its the easy way to clean your patio without intensive pressure washing. It is effective not just as a sandstone patio cleaner but also a brick patio cleaner.


  • Black and White Spot
  • Dirt
  • Algae and Lichens
  • Moss

For areas of stubborn dirt and intense organic growth dilute 1:1 and apply to a wet surface. For best results work the patio cleaner into surface gently with a broom, keeping the surface damp and rinse off after approx 1 hour.

Apply by watering can or sprayer, most patios will be clean after one treatment, if required, re apply or leave product on surface for longer. If applied as advised, 5 litres of product generally cleans a  40 m2 Patio. If product runs off onto areas of vegetation, keep rinsing down with water. Avoid contact with skin and wear appropriate safety wear at all times. Refer to technical page for additional information.


How to Apply

Remove loose debris and if  heavy moss is present, pretreat this area a few days before. Make surface wet and then dilute PatioClean Xtreme at ratio of 1:1. Apply to surface, and agitate, after approx 60 minutes rinse off or for areas of heavy contamination, leave for longer.

Keep patio damp throughout period when product is on surface, as Patio Clean Xtreme is inactive once dry. Normally only one application is required, but if acute black or white spot algae remains, re apply.

Health & Safety

Patio Clean Xtreme contains chlorine which will stain fabrics and other materials. Toxic to vegetation and aquatic life, wear mask, gloves and goggles at all times. Avoid contact with skin and eyes, Patio Xtreme60 can cause skin burns. Keep out of the reach of children. See data sheets for more details.