Simply applying Our specialised chemical D7 to a patio suffering from Algue, we used our hi-tech dema foaming machine to apply our environmentally friendly Chemical D7 to eliminate the green unsightly colour on this yellow stone patio,and left for four days with no water applied ie jetspray or hosed cleaned, just the chemistry of D7 working on this kind of organism, D7 will also leave a protective barrier to prevent regrowth, this has been tested on brickwork since 2016 with no regrowth even to this day, we will guarantee no regwroth for at least 1 year and if for a miricale for regrowth to return within 1 year of treatment, we will give you a treatment free of charge. contact us today for a free quote 080 002 5631

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