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Commercial Exterior Cleaning

Commercial Exterior Cleaning

When your building requires commercial exterior cleaning services, you will need to find a reputable exterior cleaning company.

First off, what type of building materials do you require cleaning?

Secondly, what type of contamination is on the exterior surface which makes it look dirty to you and your visitors?

Once you understand the two questions above, you can start looking for the right type of commercial exterior cleaning company, which will understand what type of equipment and chemicals are required to get you the longest lasting results.

Examples are as follows;

Render which is used on many buildings these days usually requires the Soft Wash method of cleaning. This method is fairly new in the UK and you should find a genuinely competent company to carry out this task – you can find fully trained and equipped companies here. Soft washing is ideal for organic matter removal from render.

Stone which has been used throughout the centuries will likely need to be cleaned by a Doff High Temperature Steam Cleaner. Doff equipment have been approved by English Heritage because they cannot damage the stone façade. Doff is ideal to remove organic matter and man made stains such as paint, graffiti etc. Should there be other contaminants such as carbon staining usually black in colour then it is highly likely you would need to use HF20 to soften it up before applying high temperature steam.

Cladding, metal, steel, aluminium, plastisol coated, painted or even powder coated, what methods should be used to clean them? Mostly Soft Washing will be required to clean off the organic matter. Where these surfaces have suffered from UV damage and are powdery to the touch, a product specified by architects such as The Purple Rhino 3 Step System will need to be used to ensure the surfaces are brought back to original colour and protected with hydrophobic coatings to prevent further UV degradation from occurring.

Cedar wood cladding is becoming very popular these days on modern apartment buildings and offices. Soft Washing is the very best way to clean off unwanted organic build up.

Brick, again the Doff steam cleaner is often found to be the perfect tool for getting rid of unsightly organic matter

Concrete, the trusted well known pressure washer, is often used to blast away dirt and grime from this hard surface material.

Also consider what type of training does the commercial building cleaner company offer its employees. They should have all the basic training such as WHR (working at Height Regulations) Ladder Training, Manual Handling Training, Asbestos Awareness Training, Safety Harness Training, IPAF, PASMA as well as specilised “how to” courses such as Stonehealth Approved or SoftWash Systems Certified Applicator training course which ensure the user of their equipment has been trained to use it safely and effectively.

Most commercial exterior cleaning companies will provide you with a site survey and a fully written itemised quotation.


Knowledge Base


I look forward to helping you get your building super clean,

Yours sincerely

Darran Smith

Darran Smith, Director, Purple Rhino Building Cleaning

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What our Clients Think

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  • We are very pleased with the results of our render and roof clean at Peasmarsh CE Primary School: it looks brand new! The whole team were really professional, arrived on time and left everything clean and tidy. Many thanks Purple Rhino!

    Emma H

  • The Process was not too noisy and Purple Rhino really cared about our staff, visitors and residents, nothing was too much trouble for them.

    Lady Elizabeth House Manager
    Bell Group Ltd, Slough

  • Excellent Job, Well Done

    JP McCoy Facilities Manager
    SGS Ltd, Aylesbury

  • We are a St Margaret’s CE Primary School in West Sussex and have had nothing but great results from Purple Rhino from the first introduction to Darran Smith a family orientated business shone through. We have very high expectations and the cost is always a priority. Purple Rhino have the same objective and are always improving their services with the most up to date equipment. They are punctual and efficient with the task in hand and work as a great team.

    Cheryl Thompson-Balk Premises Officer
    St Margarets C of E Primary School, Crawley

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