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HBS GoRend Monocouche render is a popular choice for new-build properties due to its consistent quality, durability, and vibrant, long-lasting colour.
This factory-produced render is entirely through-coloured, meaning it retains its colour for years without fading. Ideal for finishing multiple properties with the same colour and standard, it doesn’t require a basecoat application, reducing both time and construction costs.
It can be applied by hand or machine to blockwork and is breathable, ensuring healthy, damp-free building interiors. HBS GoRend Monocouche render is also highly weather-resistant and durable.
Even though HBS GoRend Monocouche render is designed to maintain its colour, external factors like organic growth can impact its appearance over time. For example, black mould and algae can colonise the surface, diminishing its look. In this case study, you’ll see how black mould invaded the render, reducing its aesthetic value.
While black mould is often the most noticeable contaminant, it doesn’t appear on its own. Initially, less complex algae, often green or red, establish themselves first. These algae create the ideal environment for black mould to thrive. Once black mould appears, it’s crucial to act promptly—leaving it untreated can not only harm the render’s appearance but also cause long-term damage to the substrate beneath.

Restoring your HBS GoRend Monocouche render to its original condition is simple with the right cleaning method. Algae and light stains can be treated effectively using soft washing, a gentle, non-invasive cleaning method that uses steam and a biocidal solution to remove the contaminants. For more stubborn black stains, specialist cleaning treatments combined with steam are recommended. It’s important to fully rinse the treated areas after using chemical cleaners to remove salts and other compounds that could encourage future re-colonisation.
In our video case study, the HBS GoRend Monocouche render was cleaned and restored from the safety of the ground using extendable poles. Additionally, the slate flooring was also restored to its original condition.
If your HBS GoRend Monocouche render has been affected by organic growth or discolouration, contact Softwashing UK today for a no-obligation quote to restore its beauty and durability. Let us help you maintain your render’s long-lasting, vibrant appearance.

























Apartment blocks face constant exposure to the elements — rain, wind, pollution, and biological growth such as algae and moss. Over time, this leads to staining, discolouration, and potential structural issues that impact both the appearance and long-term condition of the property.
A neglected exterior can lower kerb appeal and reduce property value. That’s where Softwashing UK comes in.
We provide professional apartment block cleaning and restoration using our specialised soft wash technology — a safe, effective, and long-lasting alternative to harsh, high-pressure methods.
High-pressure washing can damage exterior surfaces, strip coatings, or drive water into vulnerable areas. Our soft wash system uses low-pressure techniques and biodegradable cleaning agents to safely remove dirt and contaminants without harming the building fabric.
Our softwash treatment eliminates algae, moss, lichen, and other organic matter at the source. This not only removes visible staining but also prevents regrowth, keeping apartment blocks looking fresh for longer and reducing the need for repeat cleaning.
We don’t just clean the surface — we restore it. Our biocidal solutions penetrate porous surfaces like render, brick, cladding, and stone to lift stains, kill growth, and remove pollutants, restoring the building’s original appearance.
Left untreated, moss, algae, and pollutants can hold moisture against surfaces, leading to cracks, water ingress, or costly repairs. Regular softwash cleaning preserves the integrity of render, masonry, and paintwork, extending the lifespan of your building.
Our expert team is fully trained in safe building access, softwash application, and chemical safety. We are insured and experienced in working on apartment blocks of all sizes, including high-rise developments and complex façades.
Our cleaning solutions are pH-neutral, biodegradable, and eco-friendly. They are safe for residents, landscaping, and drainage systems, with no harmful runoff — ideal for environmentally conscious property managers and housing associations.
We offer flexible scheduling to minimise disruption, including early mornings, evenings, and weekends. Our efficient, quiet methods ensure residents can go about their day while we restore the building exterior.
A clean, well-maintained apartment block projects pride of ownership, improves kerb appeal, and reassures residents and potential buyers alike. Whether preparing for inspections, new tenants, or simply maintaining high standards, our service adds visible value and long-term protection.





















HBS GoRend Monocouche render is a popular choice for new-build properties due to its consistent quality, durability, and vibrant, long-lasting colour. This factory-produced render is entirely through-coloured, meaning it retains its colour for years without fading. Ideal for finishing multiple properties with the same colour and standard, it doesn’t require a basecoat application, reducing both time and construction costs. It can be applied by hand or machine to blockwork and is breathable, ensuring healthy, damp-free building interiors. HBS GoRend Monocouche render is also highly weather-resistant and durable.
Even though HBS GoRend Monocouche render is designed to maintain its colour, external factors like organic growth can impact its appearance over time. For example, black mould and algae can colonise the surface, diminishing its look. In this case study, you’ll see how black mould invaded the render, reducing its aesthetic value.
While black mould is often the most noticeable contaminant, it doesn’t appear on its own. Initially, less complex algae, often green or red, establish themselves first. These algae create the ideal environment for black mould to thrive. Once black mould appears, it’s crucial to act promptly—leaving it untreated can not only harm the render’s appearance but also cause long-term damage to the substrate beneath.
Restoring your HBS GoRend Monocouche render to its original condition is simple with the right cleaning method. Algae and light stains can be treated effectively using soft washing, a gentle, non-invasive cleaning method that uses steam and a biocidal solution to remove the contaminants. For more stubborn black stains, specialist cleaning treatments combined with steam are recommended. It’s important to fully rinse the treated areas after using chemical cleaners to remove salts and other compounds that could encourage future re-colonisation.
In our video case study, the HBS GoRend Monocouche render was cleaned and restored from the safety of the ground using extendable poles. Additionally, the slate flooring was also restored to its original condition.
If your HBS GoRend Monocouche render has been affected by organic growth or discolouration, contact Softwashing UK today for a no-obligation quote to restore its beauty and durability. Let us help you maintain your render’s long-lasting, vibrant appearance.

























Head Office, Kane Close,
Cardiff,
South Wales
CF14 5LG
United Kingdom
enquiries@softwashinguk.co.uk
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