It took two applications but the black spots were removed and the yorkstone looked brand new

Delivery was very quick. I have only used the Natural Stone one so far, this year & it has removed about 90% of the black spot/ marks, after one treatment.

Effectiveness of product

Good Price Product worked perfectly Deliver in good time

Excellent product

Fantastic stuff. I can't believe how well it worked. Will need to re-do a couple of areas as I only bought 2 litres initially, thinking that if it wasn't any good I wouldn't have wasted too much money, since it is quite expensive. But absolutely worth buying - I'd forgotten what colour my Indian stone slabs used to be!!!! Will get a bigger bottle next time so I can touch up this time and then redo properly next year. My patio is about 10 sq metres, so the 2 litres would be fine for future annual treatments, but there are about 8 years of black spots to remove, hence the need to redo a few bits this time. PS: NO scrubbing involved! Great for a female pensioner like me.

Great product and prompt delivery

I used this product last year and again this year in a different area on my garden patio and paths. It is excellent and works fast every time. Other products on the market are not as good. I thoroughly recommend this product.

The successful restoration of the stones and the prompt delivery of the remover of black spot.

This product is amazing totally rejuvenated my patio Great product

Great customer service and prompt delivery.

It worked very well and is safe for plants. However, it is very expensive, hence the 4 star instead of 5

Great product ... does what it says.

This product really works , no gimmick . Our Indian stone patio looks as beautiful as it did when it was laid 8 years ago . So pleased we tried this product.

Product was delivered swiftly and was well and securely packaged.

Despite the cost, I wouldn’t use any other product to clean my stone slabbing. It’s so easy to use and the results are incredible, I’ve used it 3 times now over the past few years and to me it really is the start of summer, everything looks so fresh again.

I was sceptical but the product has transformed my Indian sandstone patio, which I laid in 2017 and was badly infested with black algae. I've found it works better on a patio which has just been washed and allowed to dry. I assume this helps the product absorption, but I don't know. When I tried it on an area I had jet washed a couple of weeks ago it seemed less effective. The only barrier to five stars is the cost. If you have a large area to treat it's expensive.

Fantastic results, my patio looks like new

Delivery was very prompt. The black spot remover performed very well on black spots which had appeared in the first four years after our Indian sandstone patio was laid.

Works great, almost completely removed the spots, with a night and day difference. Some bits needed more than one coat but it's years worth of grime.