In essence, render cleaning comes in many forms. It can involve a simple pressure wash, the application of chemicals to resolve the growth of various organisms, and much more.

In this article, we will cover everything you need to know about residential render cleaning. So that you can prepare yourself for making your home look brand-new.

Whenever you’re ready to make your property look great, and ensure it stays that way for a long time, keep reading.

What Render Type Do You Have?

Before you can start to clean your render exterior, you need to first understand what type of render it is. There is a variety of modern renders on the market, many of which are mixed with polymers for protection.

Other renders require their own treatments and tools. Some can withstand jet washing, while others are too fragile to survive a wash. If you are unsure of the type of surface you have, speak to the manufacturer or call a specialist cleaning team to come and check it out for you.

Next, you need to assess the type of dirt, grime, and stains your rendered wall has. The exterior wall of a home can be affected by so many things, such as dirt, algae, mould, and much more.

Knowing what type of issue is related to your render will ensure that you can appropriately deal with the issue.

Jet/Pressure Washing

Most firms that create modern render recommend that one uses a jet or power wash to remove algae growth and stains. Pressure washing clears render surfaces from discolouration caused by metalwork, algae, or weathering. As long as the stain is not severely ingrained, a power wash can restore the glory of the building.

But pressure/jet washing is not suitable for all render types. While some modern ones are more resilient, others might not be. They can easily be eroded or damaged by the water jet.

If you are not sure if your building is suitable for this cleaning, speak to the manufacturer or a render maintenance firm.


To get the best results from render cleaning, you will need to use detergent. The detergent helps remove algae and blemishes from the render surface, making it look new.

In many circumstances, the small discolouration can be removed with only a sponge and detergent. But stubborn stains will need to be cleaned with detergent and a gentle jet wash, as well as other tools.

A render cleaning company will be able to provide you with the best render maintenance, ensuring that your investment is not depreciated.


Staining and discolouration are often caused by fungus growth. Fungi often build upon buildings that are weather-exposed. It often grows beneath rooflines, balconies, and near windows.

Besides discolouring the property exterior, fungi can damage the render if not cleaned. Over time, this will lead to more serious problems and can lead to the need for re-rendering.

Regular fungicide application will not only remove existing growth but prevent future growth from occurring. This is specifically true for when the fungicide is applied after the property is jet/power washed.


Just like fungi, the exterior of a building can lead to algae growth. Like fungi, algae growth occurs on exposed surfaces and can lead to serious render damage.

Applying biocide during and after cleaning will remove existing algae and decrease potential regrowth. Biocide must be applied to property render at least once each year, this will prevent algae growth greatly.


When a patch of render is severely damaged or discoloured, one can choose to re-render the surface. As render manufacturers advise, damaged render must be removed and re-rendered.

In any case, it’s unlikely that one can achieve the same finish as the rest of the property, a re-render should only be done to an entire panel or in circumstances when cleaning is not possible.

Custom Solutions

Finally, some companies have their own process for cleaning render, from start to finish. They use their own methods, solutions, and techniques to remove grime, dirt, stains, algae, and organisms from rendered surfaces.

In many cases, this is the best way to approach render cleaning because each surface has its own needs. Just like in life, each person has their own set of needs, so does an exterior render.

There’s no one-size-fits-all solution to render cleaning. Therefore, preparing a plan for each render on a customer-by-customer basis is the best way to approach the problem. One thing can work for one property, but it might not work again for a different property.

So if you’re looking for the best possible results, you should use professional customizable solutions for render cleaning.

Professional Render Cleaning for You

Now that you know what render cleaning involves and why it’s important, you are that much closer to getting your property in great condition. As long as you put in the effort to find out what type of render you have, what problems affect it, and how they can be resolved, you will get your property in order in no time.

However, some of these things can be hard to determine without first-hand expertise. And that’s when you would want to involve the work of a specialist.

If you’re interested in professional render cleaning, get in touch with us and we will happily accommodate your needs.