We manufacture our unique Patio Black Spot Removal products which are developed specifically to remove those hideous black spots that grow on your patio that pressure washing simply cannot remove. Our products have been finalists at the Garden Retail Awards for the last 3 years running! We sell our products for DIY use but can also offer the full service. Using our Patio Black Spot Removal system will not only remove all the Patio Black Spots and other organic growths (algae, fungus etc) from your Patio/Garden Stonework, it will clean your stone back to as good as it was the day it was laid, regardless of how long/neglected your stonework may be. none of our products contain acid or caustic are are safe for any type of stonework and they are also water soluble and biodegradable making them safe for use in the garden. We also manufacture our Patio Black Spot Preventer, which when sprayed on and left annually, will stop the black spots reinvesting your stonework for good. The Preventer will also remove any green algae after just 5 days of application, negating the need to go and endlessly pressure wash and eventually damaging your stone. Check out our website, www.patioblackspotremoval.com for before and after pictures and many happy customer reviews. ;