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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 façades, block paving, flag stones and wooden cladding, decking and furniture. They can make exterior terraces, pathways and steps extremely slippery and potentially hazardous.

Moss and lichen Cleaning

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.

Moss and lichen Prevention

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.

Related Case Studies

Graffiti deleted for Hathaway House

Hathaway House provides low cost social housing for people needing somewhere to live. The property had become a victim of unwanted graffiti which was making it look run down and uncared for...

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Spring cleaning a hotel in historic Bath

The Hilton hotel Bath, perched on the river Avon, is exposed to the elements all year round. We were called by building firm Edgewater Contracts to clean the building façade of organic growth.

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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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Some of our clients

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Client Testimonials

“Excellent to deal with from start to finish, very professional in their attitude and kept us informed at every stage. ”

Esther Hunting - Warwick Estates

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

Cathering Stott - Eunomia Research & Consulting

“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

“OneFifty are always responsive. Max replies quickly to let me know when one of the team can come out to do the work.”

Lorna Barnet - Director of Barnet Development

“The offending Graffiti was removed without trace using pressurised steam.”

Lucy - Jones Lang LaSalle

Our Accreditations

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