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

Surface Materials

 

Render

Render often becomes discoloured as a result of environmental and organic pollutants. Care must be taken when cleaning render to ensure that the surface is not broken or compromised.

Where Used

Where Used

Render is applied to external walls to achieve a smooth or textured surface. Traditional render is cement based and can be tinted or painted after application. Cement render can also be modified to incorporate acrylic - a mixture of plastic polymers and petroleum, to create a more  water risistant and resilient surface. 

The primary cause of the discoloration of render is the growth of a biofilm - a mixture of moss, algae and lichens. Many factors influence the growth of a biofilm including; the direction of the building, the ph of the surface, moisture levels and temperature. As a result different facing rendered facades may have a different type of biofilm growth.

We clean; StoRend, Parex, K Rend, Weber, Wetherby and Monocouche. 

Cleaning Method

Cleaning Method

We usually follow a three-step cleaning process on render cleaning projects. We start by cleaning the surface using our SteamPLUS technology - using pressurised steam at 150°C with pressures as low as 40 Bar. This delivers an impressive yet gentle clean and ensures that all the surface based dirt and algae deposits have been effectively removed.

We then treat the surface with a special Render Wash which is particularly effective at killing the algae and moss that has become ingrained into the render. It also contains a fungicide which helps ensure eradication of spores. A final clean, again using SteamPLUS, leaves the surface looking as good as new. 

By using our SteamPLUS system the render dries quickly which means that moisture is not driven deep into the render. If water penetrates it can become trapped and subsequently freeze and then expand during the winter months.  The frozen moisture expands and causes cracking or blowing which can lead to costly repair work.

Because SteamPLUS produces steam at 150°C it kills the surface based spores along with any other living organic materials.

SteamPLUS cleans gently and so does not cause the scarring and damage that is frequently associated with traditional jet washing methods.

 

Related Case Studies

Bristol graffiti cleaning

Following St Paul's Carnival in Bristol, Portland Heights needed rapid graffiti cleaning to remove obscene words sprayed onto the building's exterior.

Read full case study

Façade cleaning for Oasis Academies

Oasis is one of the largest Multi-Academy Trusts in England. OneFifty was delighted to be asked to clean the façades of two of their Academy buildings.

Read full case study

Algae removal - San Lorenzo Court, Cornwall

When the walls of San Lorenzo Court - a contemporary retirement development in Saint Ives, Cornwall - became stained by unsightly black algae OneFifty knew exactly what to do.

Read full case study

Render Cleaning Services across the UK

London | Manchester | Birmingham | Liverpool | Leeds

 

Facade Cleaning Services across the UK

London | Manchester | Birmingham | Liverpool | Leeds

Some of our clients

burges-salmon-logoclient-big-yellowclient-bond-dicksonclient-bouyguesclient-bristol-sportclient-bristol-universityclient-first-portclient-foxclient-hmclient-ian-williamsclient-jllclient-lshclient-mccarthy-and-stoneclient-mcdonaldsclient-osborne-clarkeclient-porcelanosaclient-safestoreclient-sir-robert-mcalpineclient-suezclient-taylor-wimpeyclient-tcl-groupclient-tescoclient-turtle-bayclient-uniteclient-wickwarThe-Landscape-Group-logo(1)TRS_LOGO1Workman-logo

Client Testimonials

“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

“Quite simply a very professional, friendly, family business that provides good value for money. ”

Les Richards - Board member of the RTM

“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

“A safe pair of hands - thorough, cost effective and report back in a timely fashion.”

Bloq Management Services

“They were able to remove the remnants of graffiti that had not been removed previously using chemicals.”

Joe - Hillcrest Estate Management

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

Elaine Whitfield - Consort Property Management

Our Accreditations

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