Low Pressure Render Cleaning

A newly rendered building looks great, especially through coloured render. This type of coloured render is often sold as maintenance free. However the reality is within a few years algae often appears on the surface of the render making the new render look old and dirty. Some companies will suggest painting the surface but this is costly and 99% of the time unnecessary. We can remove the algae from the surface usually without the need for costly cherry picker of scaffolding fees.

How should render be cleaned?

If render is cleaned using high pressurised water damage to the surface is likely. In some cases high pressure cleaning can ruin the surface and mean it needs to be replaced. That is why we only clean render using low pressure render cleaning techniques, By using a softwash render cleaning method we are able to thoroughly clean the render, and kill off the organic algae growth. We then steam clean k rend (and other renders) to achieve the best results possible.

High pressure jetting will not clean render to the same level we achieve by using our specialist chemicals.

What types of rendered buildings do we clean?

We carry out render cleaning on large buildings such apartment blocks, schools and hospitals. We also take on domestic properties for house k rend cleaning. We also have references available upon request.

Render Cleaning Gallery

We regularly update our FACEBOOK page with images of our latest work.

For more examples please take a look.

K Rend cleaning – Render cleaning in Somerset

This property was suffering with a bad case of algae growth. The K Rend was looking dirty, tired and and in need of a clean. We carried out a softwash render clean and a steam clean and transformed the look of the house. The advantage of a softwash render clean is that it kills the algae and lichen on the render which means it stays cleaner for longer.

Large House Render cleaning 

We were asked to clean the render at a large house that had accumulated a build up of algae growth. Within a couple of days we were able to clean the entire house. Due to our cleaning techniques we were able to clean the entire house without the use of scaffolding of power access equipment and safely from the ground. The difference a softwash render clean and steam clean can make is huge and costs a fraction of the cost of painting the property.

Render cleaning, South Wales

We we asked to clean the render and stone sills of the front the four properties shown below. The through coloured render of these houses had never been cleaned and the look of the properties had suffered because of this. In one day we were able to clean all four houses without the use of expensive access equipment or scaffolding, while still carrying out the work safely.

Render cleaning in Bristol

We cleaned the render and bathstone of the house shown below. Due to the results of the clean we were then asked to clean several properties in the street. Softwash render cleaning can dramatically change the appearance of your property. Having your K Rend cleaned professionally will make selling your property easier and lengthen the life of your render.

Algae removal (green “stains” – Chepstow

We cleaned the patios for one of our customers and she was very happy with the results. While there we offered to carry out a test clean on the render free of charge(on a small section of the house in an inconspicuous area). The customer could not believe how we achieved such a great result using only low pressure. We will now be cleaning the whole house in the coming months.

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Render cleaning in Portishead, Bristol

We clean a lot of rendered properties in Portishead. When we carry out render cleaning in portishead we are often asked to quote for other cleaning jobs. Black mould on render, green algae on render and red streaks on render can all be removed. We use a softwash render cleaning method, along with a steam clean to transform the k rend and improve the look of buildings.

Render cleaning in Cardiff

When professionally soft-washed K Rend render will look great. Algae shown as black or green staining on render and red streaks on render can be removed using soft washing and steam cleaning. We are often asked to carry out soft washing in Cardiff to transform rendered properties and improve the look of K Rend buildings.

Render cleaning in Bristol

The wall shown below had taken the brunt of the weather for several years and had changed the appearance of the building to make it look dark and dirty. We were able to clean up the area using our soft-wash, low pressure cleaning techniques.

Render cleaning in the Forest of Dean

We were asked to clean the render at Lydney Hospital in the Forest of Dean. We treated the surface with our softwash render treatment and rinsed the areas with a low pressure spray. We cover the whole of the Forest of Dean for softwash render cleaning.

K Rend Cleaning in South Wales

We softwashed the render as a test clean for a customer. After seeing the results, the customer booked us in to clean several rendered properties. K Rend should never be pressure washed. This is why we softwash render such as K Rend. We regularly carry out K Rend cleaning in South Wales and the South West.

Monocouche render cleaning & patio cleaning in South Wales

The render and patio shown in these images was heavy soiled with dirt and algae. The customer thought they may have to paint the house. But we were able to clean the walls thoroughly meaning there was no need to paint the property, saving the customer thousands. We also chemically cleaned the patio slabs and pressure washed them to improve the look of the house. Patio Cleaning is a great addition to render cleaning.

Some of our larger projects

Sovereign Quay – Render Cleaning in Cardiff

We were asked to carry out the render cleaning of Sovereign Quay in Cardiff. The building is situated in a prime location neighbouring St. David’s Hotel. We had two teams on this project to carry out the softwash render cleaning and steam cleaning. As part of the clean we cleaned all the Sto Render, metalwork and windows. The difference the softwash render clean made was outstanding. 

What is render?

Render is a very common surface type especially for newer building. The finish is a self coloured through render which can be made available in many colours. The render on a property is applied in such a way that allows a choice of finish to the customer, and means the exterior walls do not need to be painted. This is why render cleaning is needed to ensure a clean finish to your render. We offer render cleaning in Bristol to keep your render looking clean and algae free.

There are several big manufactures when it comes to through coloured render. K Rend is the most well known brand of render in the UK. This product is usually found on domestic sites and small commercial buildings. Another common brand in render is Weber Monocouche or Saint-Gobain Weber. This brand of render is again common in the domestic sector and small commercial. When it comes to larger buildings such as apartment blocks, schools, hospitals, etc. brands such as Sto are more commonly found. 

There are also different types of render that need render cleaning. 

The first being cement render. Cement render is one of the most basic and traditional types of render. The problem with this type of render is the finish is always one colour. This means it is usually painted. However cement render cleaning is needed to ensure the area is kept algae free.

The second type of render is Lime render. Lime render less common. It involves using sand and lime to make a mortar. Lime render is more flexible than cement render but it does cost more to apply. Lime render cleaning is also needed to keep it looking clean and fresh.

The third type of render is pebble dash. Pebble dash render is made by first using a cement or lime render, then adding pebbles, gravel, shells or flint ships to the surface. This can be a cheaper type of render to us, but can be prone to algae growing on the render. Also, you can often fine moss growing on pebble dash. As the surface can be delicate soft wash render cleaning is needed. Softwashing pebble dash will ensure the pebbles do not fall off the building.

The forth type of render is Acrylic render. Acrylic render is made by adding acrylic resin to the render. This enables the surface to become more water resistant and less prove to cracking.

The fifth type is a silicone render. Silicone render is similar to acrylic render with its properties. This means it keeps the waterproof properties, but the advantage is that it is breathable. Silicone render cleaning is needed to keep algae from growing on the render. Algae growing on silicone is a typical problem for renders like K Rend. Please read on for some more information and the solution.

Why does render need cleaning?

Over time through coloured renders will accumulate atmospheric dirt such as pollution and carbon staining. However, the biggest issue with render is algae growth. Algae starts to form on rendered surfaces usually in shady areas or areas that take the brunt of the wind and the rain. Over time the green algae will start to spread over the surface. Soon the rendered walls will still to go grey as the algae excretes a protection from sunlight. The mos advanced the algae is the darker the staining. This can transform a light coloured render into a dark lee building due to the algae growing on the render. This will drastically change the appearance of you house or commercial building, leaving what was a fresh, bright looking building looking dull and dirty. 

But unfortunately, that is not where it ends! In costal areas or walls that are exposed to prevailing winds, wind-borne can form. Wind-borne algae does what it says and travels in the wind. Then it settles on the coloured render. The algae is often seen as red in colour. As the rain hits your render it spreads the algae down the wall and encourages the algae to grow in a streak like pattern. Red streaks on algae are common and can leave the rendered building looking like it is bleeding! This type of algae will then get darker and darker until the streaks are a dark burgundy colour which can look very unsightly on a light through coloured render. 

The last main issue that affects render is moss growing on render. Moss can be very destructive to you render. Moss grows in the gaps and cracks in your coloured render and will eventually damage the surface. Moss grows in a symbiotic relationship with algae. So if you have moss growing on your render, then you also have algae. This is why algae needs to be cleaned, killed and removed in its beginning stages.