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Excellent service and excellent product. I am delighted with the results. Does exactly what it says in its name. Thank you.


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Question and Answer

Patio Black spot remover
Will their be any damage to the lawn?
Answered by Longacres 10/07/17

This product is bio degradable and pet friendly, so no harm to beds, lawns or pets.

We have artificial grass next to our patio, will this damage or discolor it ? Thanks
Answered by Longacres 13/04/18

This is for hard surfaces and concrete only. This may cause damage to artificial grass.

Ruth Castle
Will the run off when it is pressure washed off affect a yew hedge or flower beds that it drains onto?
Answered by Longacres 27/06/18

Yes this will effect them.

Reading previous answers given one says won't harm lawns or bed next answer run off will harm yews and beds which is correct?
Answered by Longacres 18/07/18

Yes this will harm beds and lawns if the Patio Black spot runs onto them.

1. Don't have pneumatic spray. How else apply? 2. 2 hours dwell time; don't let it dry out. How can I do that in current heatwave?
Answered by Longacres 29/07/18

You will need to use a pressure sprayer when applying this product. We would advise applying in cooler weather. 

Is this harmfull to aquatic ponds i have koi and many other fish.
Answered by Longacres 29/07/18

Yes, Patio Black Spot Remover can be harmful to aquatic ponds. 

How long will it store for?
Answered by Longacres 24/12/19

This is a straight concentrate. This wont go off providing it's kept in dry conditions. 

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Patio Black Spot Remover 2 litres for Natural Stone


Patio Black Spot Remover 2 litres for Natural Stone

This product is usually available at all stores
  • Available for delivery anywhere in the mainland UK.
  • Collection from Bagshot, Bourne Valley, Bybrook Barn, Chelmsford and Shepperton stores.
  • Returns Policy
    Click here for more information on returning this product

Product Details

Patio Black Spot Remover is the only product currently manufactured to specifically and successfully remove those hideous ‘Patio Black Spots’ from your garden stonework. Patio Black Spot Remover will remove ‘Black Spots’ from Indian Sandstone, York Stone, Lime Stone (including Bath and Portland) Purbeck stone etc.

Patio Black Spot Remover will also restore the original colour of your patio, terrace and pathways, resurrecting those colours you thought were lost forever!

Patio Black Spot Remover for Natural Stone removes Blacks Spots, but will also eradicate Green and Red Algae, gently cleaning the Stone and reviving and enhancing the original colours, giving that “Just Laid” look to your Terrace, Paths and Patios. Supplied in liquid form, ready for use.

  • Contains 2L (treats up to 9sq meters!)
  • Do Not Dilute – No mixing required
  • Pour, straight from the container, into a standard Garden pneumatic spray
  • Biodegradable
  • Dwell time: minimum of 2 hours – do not allow to dry out.
  • Remove using a pressure washer with a fan jet.
  • Also Kills Green and Red Algae and white Fungi growth.
  • Dwell time: 2 hours

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