It does exactly what it says on the tin. This is the best product for removing black spots, even those that are very very old and long-standing.

It does what it says on the tin

All communication excellent and our patio looks as new. This is our second time using Patio Black Spot Removal and wouldn’t hesitate to use again!

Not as effective as I was hoping for after reading other reviews; lightened the slabs but didn’t remove the white spots. Bleached my jeans with the product in the process and all the plants growing in between the slabs withered and died. Got short shrift from customer services when I raised it. Fairly disappointing after all the hype.

I bought Go Ferrous and it worked a treat. It is not cheap but it did improve my patio a lot and got rid of the brown staining. The item arrived promptly.

The product is on the expensive side and unfortunately has not removed all the black spots more a general clean up

Worked as promised

It worked as advertised! Perfect!

I couldn’t believe in a difference this product made to the Indian stone in our garden!! Not just removed all green stuff but also all black spots. To top it up, after leaving it for recommended 2 hrs, the power washing was a bliss!!! All dirt just disappeared! Normally, it would have taken me about 4-5 hrs to power wash the patio. After spraying this product on the stone, the power washing took me just over an hour! I am so grateful! I definitely will be buying again. Thank you.

This product is well worth the money, our patio looks like new!

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I have never used the product before but have a patio that was laid 20 years ago. The product is amazing! I cannot believe that I have spent hours pressure washing the patio for years now and this product did it instantly. Well in 20 minutes after the two hour curing time. And I was able to do lots of other interesting things whilst it was curing which was much more fun! I shall certainly be buying it again and recommending it to others.

A great product that cleared away some 15 years of black spot build-up.

Discount based on order value and free delivery, but the product works really well. The best available!

Very pleased with my purchase the black spot remover did exactly what they said it would do. Excellent cleaning fluid and I will certainly use it again when needed.

The second year I have purchased this product to treat areas not treated previously. It really does work like magic removing algae etc from the paving slabs with no need for hard work.

Follow the instructions and your patio will be black spot free in a couple of hours

Delivered within 2 days. Product works really well and has made my York Stone look bright again.

When cleaning my patio with a pressure washer I was never able to get rid of the black spots. I purchased 4 litres of the black spot remover and applied it as instructed after watching a video of the product being used. Once left for two hours and cleaned off with a pressure washer my patio looked like new. I was amazed! I would highly recommed Black Spot remover.

I haven't used this yet but it came very swiftly