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Algae

Algae requires moisture to grow and reproduce so it thrives in damp, sheltered or shaded areas. Growth tends to be more significant in autumn and winter, but can happen at any time if the surface is persistently damp and shady. Algae can be different colours - such as red, green and black - depending on the environment that it grows in. Algae near the seaside often appears red in colour due to marine salts in the atmosphere.  

In the built environment algae typically affects hard exterior surfaces such as stone or brick façades or block paving, It creates unsightly stains and can contribute to the degeneration of the surface material. It can also make exterior terraces, pathways and steps slippery and potentially hazardous.

Algae Cleaning

Cleaning

We follow a three-step approach to cleaning algae; a first pass, to clean the surface layer of algae using SteamPLUS. Then we apply a special render wash to even out the surface followed by second pass with SteamPLUS to complete the cleaning process.

Algae Prevention

Prevention

Algae spores are air-bourne, therefore algae can be a persistent problem on any damp and shady exterior surfaces. To address this issue we apply a growth inhibitor that helps discourage re-growth and keeps the surface clean for longer.

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Related Case Studies

Cleaning an historic landmark building in Bristol

Conservation efforts are part of the upkeep of Bridge House as a 19th century building; alongside interior refurbishment, exterior maintenance is vital to ensure its longevity. That’s where OneFifty comes in.

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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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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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Spruced up facade on parade

After 13 years, this residential block of flats got the makeover it deserved.

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Tried and tested nationwide cleaning

Regular exterior cleaning for Big Yellow Self Storage has allowed us to stress-test our nationwide service and ensure that we are hitting the mark for quality of cleaning, timeliness of delivery and customer service.  

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Some of our clients

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Client Testimonials

“If we need a job to be carried out at short notice they do everything necessary to make it happen, including getting required approvals to allow them to get on site and get the job done.”

Daniel Boyle - MD of Relyon Services

“They did a really great job of cleaning the high-level cladding on the building. I know that they offer a range of cleaning services and I will definitely be using them again in the future. ”

Christopher Haswell - Project Manager - Maddox Construction

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

Tom Brady - MD Building Services

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

Esther Hunting - Warwick Estates

“You’ve done a lovely job and we would recommend your services.”

Elaine Whitfield - Consort Property Management

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

Will Mellor - Knight Frank

Our Accreditations

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