If you've ever battled black spots on your patio, you'll know how frustrating they can be. At first glance, they may look like dirt or mildew - something a decent pressure wash should clear away. But as many of our customers have discovered, even the most powerful machines, including those operating at 150 bar, can fall short. You might spend hours outside blasting away, only to find the black spots still clinging stubbornly to the surface. We’ve been through that ourselves and know first hand how ineffective power washing alone can be.
The issue lies in the nature of the black spots themselves. These aren't ordinary surface-level stains. They’re caused by lichen - hardy, deeply embedded organisms that root themselves into the pores of natural stone and concrete. Even the best pressure washers can't dislodge them because the problem isn’t just on the surface. In fact, forceful jet washing can sometimes make things worse by damaging the surface of the stone, allowing lichen spores to take hold even more deeply the next time around. That’s why so many patios begin to look patchy or worn after repeated power washing sessions.
Our experience with customers has shown us time and again that traditional cleaning methods leave people disappointed. It's no surprise that search terms like “how to get rid of black spots on patio” are among the top queries we see online. People are looking for better answers - and we offer exactly that.
What we’ve developed is a specialist black spot remover, designed specifically to break down and eliminate these tough lichen marks at their source. Unlike surface cleaners or general-purpose patio products, our formula penetrates into the stone’s pores and works chemically to dissolve the organic growth. This means you’re not just masking the problem - you’re removing it completely. And importantly, our remover is tailored to avoid damaging the finish or structure of your patio, making it ideal for stone, concrete, and paving slabs.
We also provide clear application guidance to ensure you get the best results. After applying the solution, there’s no need to rely on high-pressure washers that can erode surfaces. A simple rinse, once the remover has had time to act, is usually enough. Customers often tell us how surprised they are to see their patios returned to their natural colour, something they hadn’t seen for years despite regular cleaning.
From our own testing and experience, we know this isn’t just a cosmetic improvement - it prolongs the life of your outdoor surfaces. By addressing the root cause of staining and decay, our remover supports long-term maintenance. This complements the advice we offer across our website, where we highlight the importance of targeted treatments for moss, lichen, and algae, not just general power washing.
We’ve also ensured our solution meets the needs of UK homeowners who deal with the damp and shaded conditions that lichen thrives in. Guidance from resources such as the RHS (Royal Horticultural Society) explains how shaded patios, in particular, are prime spots for lichen build-up—a fact that aligns with what we regularly observe on-site during visits and assessments.
Ultimately, while power washing has its place for general upkeep, it’s never going to be enough for black spots. That’s why we’ve committed ourselves to developing a more effective, longer-lasting solution that delivers proper results. If you’re tired of seeing the same stubborn spots return after every clean, it’s time to try a specialist product that’s actually made for the job. And we’re here to make sure you get it done right, with the expertise and experience to support every application.
