Spectrum specialise in and devoted to restoring render back to its former glory, using a unique biocide mixed specifically for each job. This uses steam rather than pressure to restore render back to make your building look new.

If your building is looking tired and old, we’ll make it look like new – without the need to re-paint.

We know how much a building’s looks can be affected by weathered render, which is why we love cleaning and restoring render to its pre-weathered condition for our clients.  Our job is to bring back your render to its former glory no matter the weather or age it has withstood.

Neglected render that may be weathered, dirty or covered in algae can be easily rectified. Our job is to make your render look great again without you having to invest lots of time or money into it. 

What to look out for when Render Cleaning

The use of power washing on render is to be avoided, and our expertise in render cleaning will ensure the very best results with complete peace of mind – without power or pressure washing!

We recommend carrying out thorough research into the contractor chosen for your render cleaning and restoration works, as selecting an inexperienced contractor can cause further damage. We advise all of our clients to avoidpower washing or jet washing, so if this is recommended to you the render cleaning contractor is likely to not be competent or appropriately experienced in this field of work.

What you need to know about algae on render

The cause of tired looking or dirty render is often algae.

The most common types of algae found growing on render are brown, green and red algae. Tired looking render may look like it's dirty but is actually covered with dark brown algae. Dependent on the age of the algae, it may also appear red or green.

The most common effect and cause of discolouration in the render is algae. Render has a porous surface and with the correct level of moisture this can make for  optimum conditions for simple asexual cell division, allowing quick reproduction of the algae within its surface. This allows the algae to spread quickly and to develop through different life-cycle stages.

Our unique approach to render cleaning is a 3-stage process that ensures the best possible results in removing algae or other soiling. This involves the use of a uniquely-mixed biocide to be applied to the render and gentle steam-cleaning.

Cleaning Render with the correct method

Choosing an experienced and professional contractor is very important as the inappropriate cleaning methods can cause damage to the render.  Pressure washers should be avoided as the high pressure forces water deep into the render. As the weather turns colder, the moisture expands and damages the structural bond of the render. Repairing or replacing this damage can be extremely costly and time-consuming.­

A full site survey should be carried out to assess the type condition of your building’s  render before any work is agreed to­­­. During this visit, we choose an appropriate biocide for the fabric of the render,  mixed in the correct ratios to add in appropriate catalysts depending on the type and level of algae and dirt that has grown on or accumulated within the render. The biocide works into the the render, killing all algae and any other living organisms growing on it. The render is then gently steam washed with an industrial steam cleaning machine to ensure the algae is completely removed. Ensuring the best steam cleaning machines are used is a critical part to ensure optimum results for the job – there are lots on the market and Spectrum use only the most appropriate and relevant. The ten degrees in difference for render cleaning can make a huge difference in the results of the render.

The third process and last stage of the render cleaning is to apply a thin layer of a completion biocide, which will help the render stay clean for longer. This is freshly mixed on-site, depending on the building’s render and requirements.

K- Rend Cleaning

Spectrum Specialise in the cleaning of K-Rend with a vast amount of experience and knowledge in tackling in even the most demanding restoration projects. Spectrum will have the K-Rend on your building looking as good as new without the need for re-painting.

K-Rend - Repairs

As well as cleaning, Spectrum also carries out repairs for most render types. Using the appropriate methods and materials supplied by K-Rend, we can also carry out relevant maintenance services on your render. Any cracks can berepairedand the render can be protected from the elements to prevent any further damage.

Free Estimate

Contact us now for a free estimate for any of your render maintenance needs on 020 3 551 6206

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