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Commercial Render & Paintwork Cleaning

Professional commercial cleaning of Render and Paintwork in Exeter, Barnstaple, Tiverton, Cullompton, Exmouth and Taunton and surrounding regions. At DSC | Exterior Cleaning, our commercial cleaning services meet the rigorous mandatory requirements while protecting your brand image and maintaining full compliance with health & safety standards. 


We deliver one-off, contracted, end-of-tenancy and out-of-hours exterior commercial cleaning across retail parks, office blocks, schools, healthcare facilities, industrial estates and multi-property portfolios. Whether you require a standalone deep clean or scheduled maintenance, our team delivers reliable, H&S-approved solutions across the commercial and industrial sector with professionalism and pride.  

Render and Paintwork Commercial Cleaning in Exeter, Devon & Region

Over time, moss, algae, lichen, mould, atmospheric pollution and fading can build up on commercial buildings, leaving render and painted surfaces looking tired and neglected. These contaminants not only detract from your property’s appearance and potentially discourage customers, but they can also create slip hazards, hygiene concerns and long-term surface damage if left untreated. 

Our professional soft washing and specialist exterior cleaning systems are designed to tackle these problems safely and effectively. Using carefully selected treatments and low-pressure application methods, we remove staining and kill organic growth at its root, restoring the appearance of your building while helping to prevent rapid regrowth. 

As one of the leading professional exterior cleaning companies operating across Devon and Somerset, our experienced team works closely with facility managers, landlords and commercial property owners to plan and deliver expert cleaning of render, painted facades and external building surfaces.  


How We Clean Render and Paintwork 

Algae, mould, mildew, lichen and environmental staining are common problems on render and painted surfaces. Our cleaning approach is tailored to the material and level of contamination to ensure the best results without damaging the building. 

Soft Washing 

Soft washing is one of the most effective and safest methods for cleaning render and painted surfaces. Using low-pressure water combined with specialised biodegradable cleaning solutions, we gently apply treatments that penetrate the surface and eliminate algae, mould and biological growth at the root. The contaminants gradually break down and are naturally washed away by weathering, leaving the surface clean and refreshed.  

Steam Cleaning 

For delicate or historic buildings, low-pressure steam cleaning can be used to safely lift dirt, stains and pollutants from the surface without harsh chemicals. The controlled heat helps remove embedded grime and biological growth while protecting sensitive materials such as traditional render, heritage masonry or decorative finishes.  

Targeted Pressure Washing 

Where appropriate, controlled commercial pressure washing may be used on more durable surfaces to remove stubborn dirt, traffic pollution and environmental staining. Our technicians carefully assess each surface and adjust pressure levels to ensure a thorough clean while protecting the structure of the building. 


black spots and algae on natural stone patio

Render BEFORE Soft Washing

remove black spots from indian sandstone

Render AFTER Soft Washing

Call us to arrange a free site survey & quote: 01884 370 073


Benefits of Commercial Cleaning Render and Paintwork 

Insurance, Responsibility, Safety 

Commercial property owners and facility managers have a duty to maintain safe premises for staff, tenants and visitors. Dirt, algae and organic growth on building surfaces can create slip hazards, hygiene issues and falling debris risks if left untreated. Professional cleaning helps reduce these risks while ensuring work is completed by a fully insured, trained team using appropriate equipment and safety procedures, giving you peace of mind that your property is being maintained responsibly. 

Building Maintenance 

Regular cleaning plays an important role in protecting the long-term condition of your building. Organic growth such as algae and lichen can trap moisture against surfaces, accelerating deterioration of render and painted finishes. By removing contaminants early, professional cleaning helps prevent surface damage, staining and costly repairs, extending the lifespan of exterior finishes. 

First Impressions 

The exterior of your building is often the first thing customers, tenants and visitors see. Stained or weathered render can give the impression of poor maintenance, even if the interior of the building is well managed. Professionally cleaned façades help your property look fresh, professional and welcoming, helping businesses attract customers and present a strong brand image. 

Pride & Team Morale 

No one wants to work in a building that looks neglected. Clean, well-maintained exteriors create a more positive and professional environment for staff and visitors alike. Investing in the appearance of your premises demonstrates pride in the workplace and helps boost morale, showing employees and tenants that the property is properly cared for. 

weeds in concrete block paving driveway

Paintwork BEFORE Soft Washing

clean block paving patio

Paintwork AFTER Soft Washing

Commercial Cleaning Assurance 

As a family-run, local company with over a decade of experience in professional commercial cleaning in Exeter, Devon and South West, we are passionate about gold-standard customer service and safety assurance for our clients. 

Our commercial customer assurance is built on six key pillars, reflecting our commitment, integrity, and dedication to providing the confidence and peace of mind you deserve when engaging with a new contractor. 

  1. Security and Safety
  2. Consistency and Reliability 
  3. Quality Assurance and Accountability 
  4. Customisation and Professionalism 
  5. Transparency and Trust 
  6. Social Proof and Case Studies 

You can read more about our commercial cleaning assurance here. 

clean paving after fungicidal treatment

Commercial Building AFTER Soft Washing

dirty concrete patio slabs

Commercial Building BEFORE Soft Washing

Not sure where to start? Call now for advice: 01884 370 073



It's time to Transform

Whether it’s a single project, emergency situation or long-term service agreement, we’re here to ensure your home looks its best and is safe all year around for you to enjoy.

What sets us apart? Our experienced teams and commitment to excellence. We take pride in transforming spaces, building long-lasting, trusted partnerships with our clients.


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FAQs - Render & Paintwork Soft Washing


Soft washing works through a controlled chemical oxidation process. The primary active ingredient — sodium hypochlorite — reacts with organic cells, breaking down algae, mould, fungi and lichen at a molecular level.

Unlike pressure washing, which only removes visible growth, soft washing destroys spores and biofilm. Surfactants help the solution cling to surfaces, increasing dwell time and penetration into porous materials such as render and stone.

This sterilisation process not only cleans the surface but also delays regrowth. Once dry, the active ingredients break down into salt and water, minimising environmental impact.

We only use HSE-approved products and apply them in highly diluted concentrations (around 1%). The active ingredients are biodegradable and break down rapidly once dry so the process is compliant and safe to use on commercial and public buildings.

Pressure washing uses force to blast away dirt. While effective for some hard surfaces, it can damage render, dislodge pointing, strip paint and force water into cavities. 

Soft washing, instead of relying on force, it uses a targeted chemical reaction to sterilise and remove algae, lichen, fungi and mould. This means growth doesn’t return as quickly — and surfaces remain protected. 

Soft washing kills spores and organic growth at the root 

Pressure washing removes surface dirt but not underlying growth 

Soft washing is safer for delicate materials 

Longer-lasting results with biocidal protection 

We only use HSE-approved products and apply them in highly diluted concentrations (around 1%). The active ingredients are biodegradable and break down rapidly once dry. 

There can be a temporary mild bleach-like smell during application, but this dissipates quickly as the solution dries. 

10x weaker than standard household bleach 

Chemicals become inactive within approximately one hour / once dry 

Careful run-off management and environmental protection procedures in place 

The safety of your team and members of the public is our highest priority, so all our projects start with a thorough risk assessment to ensure compliance and safety in each unique environment. 

For delicate, historical, or sensitive surfaces, DOFF steam cleaning, soft washing and manual hand scraping can be used.  

Our team have extensive experience, having been instructed by local town councils, of cleaning local memorials, clock towers and ancient buildings in Devon villages and towns. Real case studies of our specialist cleaning work can be provided on application. 


When access is awkward, we use MEWP access wherever possible and all our team undergo rigorous training for working at height. 

Our team are Working At Height & IPAF trained 

H&S approved training for work at height using roof anchor points 

We always work within the unique Risk Assessment and Method Statements for any given project 

Devon Surface Care operates a low-no-risk policy, and a high-accountability culture to ensure our team stay safe 


Our standard hours are 9am - 5pm Monday to Friday, but when working in public areas we can provide flexible scheduling.  

To minimize disruption in public areas, evenings, weekends, or early mornings are possible. Please be in touch to discuss your requirements. 

A site-survey and consultation involves one of our experience commercial cleaning agents visiting your site to assess your needs. This is a free service where we can discuss your needs as a property owner / manager including your desired outcome and also any issues around safety and compliance. 

The aim of the initial consultation is to gain a clear understanding of what you need to achieve and your timescale. 

Following the survey we will write up a quotation and accompanying documentation for you to review. 

Call us to arrange a free site survey & quote: 01884 370 073

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Time to Transform

DSC delivers the very best in external cleaning and 
restoration services delivered with excellence and integrity.