Black Spot Lichen Treatment & Patio Cleaning, Yarm
Patio looking patchy or slippery in Yarm? Proper biocide treatment plus expert cleaning gets black spot lichen gone for good, not just for a fortnight.
Whether it's a small courtyard patio behind a terrace, a large sandstone patio on a newer estate, or a block-paved driveway-turned-patio, the cleaning approach in Yarm starts with the same question - what's it actually made of, and how bad is the black spot lichen.
The honest answer is that pressure washing on its own won't solve it long-term. Lichen has a root structure that grips into sandstone and limestone, so it needs a biocide treatment to kill it off before any cleaning happens, otherwise it's back within months.
Black spot lichen and green algae spread fast across Indian sandstone, limestone and concrete flags, and once it takes hold a garden hose won't shift it. The dark speckling that starts in the shady corner of a patio in Yarm creeps outward every wet spell, and by the time it reaches the seating area most of it is bonded into the stone rather than sitting on top.
Tree-Lined and Shaded Gardens
Gardens in Yarm with mature trees or dense boundary hedging keep patios shaded for much of the day, which slows drying after rain and creates the damp, low-light conditions black spot lichen and moss thrive in. Falling leaves and sap can also stain the surface between cleans.
These patios often need the joints cleared as much as the flags themselves, since moss and algae take hold in the gaps first and spread outward from there.
What a Proper Clean Actually Achieves
The result we're aiming for is a patio that's genuinely even in colour, with the black spot lichen dead and gone rather than just faded, joints cleared of moss, and no streaking left behind from the wash itself.
That result comes from the order we work in - treat, wait, clean, rinse - rather than any single powerful tool. A biocide treatment followed by the right pressure for the material is what gets a lasting result, and sealing afterwards, where appropriate, helps keep it that way.
Nearest Towns We Work In
Yarm sits close to Eaglescliffe, Ingleby Barwick and Thornaby, all areas we cover as part of our normal working week rather than as an exception.
That proximity means scheduling is usually flexible, and we can often offer a nearby time slot if your preferred date is booked up.
How Far We Travel
We're based in Washington, and Yarm is around 28.1 miles south of us - well within the area we cover regularly, so there's no long-distance call-out premium to factor into your quote.
Being a regular working area rather than an occasional trip means we can usually offer more flexible scheduling here than somewhere at the edge of our patch.
Local, Straightforward, and Easy to Reach
- Run by Trevor, directly contactable
- Speak to the person doing the work on 07501 060609, not a call centre.
- Fully insured
- Full insurance cover for every job, whatever the size.
- Biocide trained (2024)
- Properly trained in the treatments needed to actually shift black spot lichen for good.
- We look after you and your property
- That's the standard we work to on every visit, not just a slogan.
Patio Cleaning in Yarm — common questions
Call 07501 060609 to talk through your patio and get a straightforward quote.
Local to Yarm and the Surrounding Area
We cover Yarm as part of our regular working area from Washington, so booking a patio clean here fits straight into our normal schedule - no special trip, no premium.
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