This websites uses cookies, by continuing to browse the site you are agreeing to our use of cookies. View our privacy policy.
Contact form

Send us your contact details and a member of our team will get back to you as soon as possible.

Enter security code:
 Security code

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 steam cleaning 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

Managing HSE on roof and gutter cleaning projects

Our team regularly carry out roof cleaning projects which require a health and safety assessment regarding risks associated with working at height.

Read full case study

Cleaning the Dolman stand at Ashton Gate

Our team has cleaned the Dolman stand at Ashton Gate stadium, including the sides, roof and steel poles on top of this massive steel structure.

Read full case study

Cleaning historic Neptune Fountain

We carried out a cleaning project for Cheltenham Council which included cleaning up the historic Neptune Fountain on the Promenade.

Read full case study

Some of our clients

Somerset-Council-logo-grey100SISK-grey100Sainsbury-s_Logo_grey100Oasis-Logo-grey100NHS-Wales-grey100national-trust-logo-grey100Cabot_circus_logo-grey100Ashton_Gate_Logo-grey100Bears-logo-grey100client-big-yellowclient-bristol-sportclient-bristol-universityclient-jllclient-lshclient-mcdonaldsclient-safestoreThe-Landscape-Group-logo(1)

Client Testimonials

“The Jet Washing Company (now OneFifty) deliver the best quality exterior surface cleaning, high quality customer service, and excellent value.”

Will Mellor - Knight Frank

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

Cathering Stott - Eunomia Research & Consulting

“I just wanted to let you know that we are on site today and think that the building is looking so much better, so thank you very much for that.”

Anita Pitts - Hartwell House

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

Terri - DJ Foley Property Consultants

“The works surpassed my expectations! I will have no problem referring you to my friends and business associates.”

Andy Lane - Lane Pearson Automotive Group Ltd

“As always OneFifty got the job done with no fuss. They’re our go-to supplier for exterior building cleaning.”

Mark Sheffield - Contracts Manager - Jones Building Group

Our Accreditations

accreditation-safecontractoraccreditation-ipafaccreditation-pasmaaccreditation-avettaaccreditation-smasaccreditation-ssipaccreditation-cscs