Stonecare4uPATIO PERFECT - Non-Acid PATIO CLEANER - Removes, DIRT, GRIME and ALGAE Without Damaging NATURAL STONE, FLAGSTONES or CONCRETE PAVING - Simply Apply, Leave and Wash Away (25 Litre)

I only applied it for 2 hours on my patio. My slabs are 3 years old. The solution is effective. I would highly recommend.

A good product, does exactly what I wanted it to do

Easy to use and very effective.

My patio was full of black lichen after such a bad winter and I had my doubts about whether any product could get my patio looking good again, but even though I only used the weaker concentration it worked really well and all the lichen vanished. However it has affected the cement between the paving slabs a bit and a few cracks have developed. Maybe one should start with a very weak solution initially.

Did not take out marks from a recently laid Indian sandstone patio.We even tried using it ‘neat’ without dilution.Domestos does just a good a job at 1/30th of the price

Used this on my grimy backgarden path full of lichen and black marks and it brought it back to like new with ease! I was so imoressed so now ordered more to do my patio and front path, wish I ordred the 25lt one as its not cheap. Use safety glasses, gloves and a mask as this smells of chlorine. Totally recommended this product over all others.

I was absolutely amazed at how well this product performed. We moved into a property that has cream coloured stone/concrete lintels that looked like they haven't been cleaned in 20 years, very black and mouldy, within 1 hour they looked like brand new. so i decided to do the patio, sprayed it on left it and within a couple of hours we have a new patio. My wife and I were totally flabbergasted!!! Strongly recommend wearing protective clothing.

Applied to a test patch in the autumn. This is still clear but the rest of the patio has algae and dark staining and in need of a jetwash. Will apply to the whole area once we get a dry spell. Excellent results and will buy and use again