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Commercial Solar Panel Cleaning

Professional commercial cleaning of Solar Panels 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.

Solar Panel Commercial Cleaning in Exeter, Devon & Region

Over time, dirt, algae, salt deposits, and bird droppings prevent sunlight from penetrating the surface of solar panels, reducing their ability to generate power efficiently. 

Our professional Soft Washing and Pure Water systems tackle stained and inefficient solar panels by removing surface dirt, debris and staining, effectively and safely. 

As one of the leading professional exterior cleaning companies in Devon and Somerset, our team has a breadth of experience working with solar managers and property owners to plan, deliver and complete expert cleaning of solar panels. 


Dirty Solar Panel Cleaning 

Our method uses a gentle, purified water cleaning system with no chemicals, abrasives or detergents. Purified water leaves no mineral deposits or streaking behind, ensuring a spotless finish that enhances light penetration and increases solar efficiency. 


Solar Farm Cleaning Services  

Multi-hectare solar farm commercial cleaning contracts and one-off cleans are available to ensure high solar efficiency. We work quickly and efficiently and, on large farms, deploy several units to move through the site with minimal disruption.  

 

Restore Solar Panel Output

Removal of dirt, dust, pollen, bird droppings, and other debris that block sunlight from reaching the panels restores solar efficiency. Even a thin layer of buildup can reduce efficiency and lower the amount of electricity your system generates. Professional cleaning safely removes these contaminants using specialist equipment and purified water, allowing maximum sunlight absorption and helping your solar panels operate at peak performance while protecting the longevity of the system. 

black spots and algae on natural stone patio

Mounted Solar Panels BEFORE Cleaning

remove black spots from indian sandstone

Mounted Solar Panels AFTER Cleaning

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



Benefits of Commercial Solar Panel Cleaning

Insurance, Responsibility, Safety 

Moss, mould, lichen and algae growth is initially undetectable but as it grows compromises both the efficiency and longevity of your solar array investment. Some insurance plans also require regular external cleaning to avoid damage due to organic growth in / around the frame, backsheet and EVA layer. As such, it should be part of a regular maintenance schedule. 


Cleaning Maintenance 

Regular cleaning maintenance mitigates against the risk of organic ingrowth which in turn leads to reduced efficiency and potential for longer term damage. Regular cleaning is a cost-effective contributing factor in protecting your solar array investment. 


First Impressions 

Demonstrate to your solar farm managers, investors and local community that you take care over your property and seek to do the very best in keeping your farm tidy, clean and respectable.

weeds in concrete block paving driveway

Solar Farm BEFORE Cleaning

clean block paving patio

Solar Farm AFTER Cleaning

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

Solar Panels AFTER Pure Water Cleaning

dirty concrete patio slabs

Solar Panels BEFORE Pure Water Cleaning

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 - Commercial Solar Panel Cleaning


It depends on the surrounding environment and the purpose of your solar panels, but all solar panels should be cleaned at least annually to ensure efficiency. Even clean-looking solar panels build up a film of salts and transparent algae that inhibits efficiency. 

However, solar panels should have a 3-6 month cleaning schedule if the following applies:

  • The panels located within 100 mtrs of a plantation or woodland area
  • The panels are located in a coastal area (due to salts building up)
  • For roof mounted panels, where the roof has extensive moss growth (in this situation we would recommend commercial roof cleaning and moss removal)
  • The solar panels are used for a commercial output

Our contractors can clean any exterior hard surface including brick, stone, concrete, render, cladding, UPVC, glass, and roofing materials. Depending on the strength, porosity and access to the area, we adjust the cleaning method. 

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

Commercial Solar Panel Cleaning in Exmouth

Commercial Solar Panel Cleaning in Taunton

Commercial Solar Panel Cleaning in Barnstaple

Commercial Solar Panel Cleaning in Exeter

Commercial Solar Panel Cleaning in Tiverton

Commercial Solar Panel Cleaning in Cullompton


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Gutter Cleaning Commercial Pressure Washing ​​Soft Washing Roof Cleaning ​Meet our team


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Time to Transform

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