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Moss and lichen

Moss and lichen are micro-organisms which adhere to a solid surface. Both require moisture to grow and reproduce, so thrive in damp, sheltered or shaded areas. Poor drainage conditions contribute to growth on paths and hard surfaces, moss particularly likes a pitted surface that allows it to set down roots. Growth tends to be more significant in autumn and winter, but can happen at any time if the surface is persistently damp and shady.

In the built environment moss and lichen can grow on many hard exterior surfaces such as tiles of roofs, stone or brick fa├žades, block paving, flag stones and wooden cladding, decking and furniture. They can make exterior terraces, pathways and steps extremely slippery and potentially hazardous.

Cleaning

To remove moss and lichen we use a combination of SteamPLUS and a biocide (DC64). The combination of the heat and the biocide chemical ensures that they are thoroughly eradicated and helps inhibit re-growth. The results can be transformational.

Prevention

Where possible, cut back foliage to improve air flow and allow the sun and wind to dry the site. Ensure surfaces slope slightly to prevent standing water and improve drainage. Opt for permeable paving when constructing new hard surfaces and surface finishes that give grip in wet weather - especially in shady spots. Apply a biocide growth inhibitor.

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Related Case Studies

Four different surface types! Our system works its magic across all four.

St George's Heights is a modern apartment block located in Redfield, in South Bristol. The building fa├žade is made up of four different substrates; wooden cladding, brick work, cement and K Rend render. Each of these surfaces requires a slightly different method of cleaning which was no problem for our cleaning system.

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Major project carried out with minimum fuss

OneFifty was contracted to carry out external cleaning of a sizeable office premises in Temple Quay. Using cherry pickers and ropes we were able to reach and clean every inch of the building exterior.

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'Wood' as new - steam cleaning outdoor furniture

It might surprise you to know that as well as cleaning hard surfaces such as concrete, stone and brick our SteamPLUS system is brilliant for cleaning wooden garden furniture.

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Grosvenor Court

We were requested by BNS Property Management to clean the front walls and pathways of Grosvenor Court, Bristol.

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Pressurised steam beats the clock for Tescos

We were selected to clean the flag stone steps in front of the Tescos store located in Contemporis, a stunning residential block in Clifton.

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Contact Us

Send us your contact details and a member of our team will be in touch to discuss your requirements. If you upload an image of the surface you want cleaned we can provide you with an indicative quote.  

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Some of our clients

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Client Testimonials

“I was very impressed with the finish your company produced and how quickly you managed to do it.”

Tom Brady - MD Building Services

“Looks really good, we are very impressed with your state of the art cleaning equipment. Please pass on our thanks to Andy.”

Adam Reynolds - Cheltenham Borough Council

“Your pressurised hot water system transformed the appearance of our outdoor wooden decking.”

Gary - Lockside Restaurant

“Thank you to you and your team for delivering such high standards of service whilst representing RelyOn.”

Jason Husk - RelyOn Services

“The work was carried out to a very high standard and we would not hesitate to use you again.”

Cathering Stott - Eunomia Research & Consulting

“We were delighted with the high standards they achieved.”

Terri - DJ Foley Property Consultants

Our Accreditations