Commercial Roof Cleaning, Moss Removal and Skylight Cleaning
Professional commercial cleaning of roofs and skylights 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.
Roof & Skylight Commercial Cleaning in Exeter, Devon & Region
Moss, algae, lichen, and surface dirt build up on roofing materials such as concrete tiles, slate, fibre cement, stone, and sheet metal and poses a H&S risk, detracts customers and can compromise the integrity of your property.
Our commercial roof and skylight cleaning service tackles organic growth and debris build up by pressure washing and / or soft washing to remove dirt and kill organic growth 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 facility managers and property owners to plan, deliver and complete expert cleaning of commercial and industrial spec roofs and skylights.
Roof Moss & Debris Removal
Safe systems are used to reach every part of the roof for manual or mechanical removal of all debris and organic growth. The cleaning method depends on surface fabric – either a manual scrap of roof tiles or pressure washing to remove initial moss and debris.
Algae & Lichen Removal From Roof
Complete professional cleaning service for tired, dirty signage, illuminated signs and shop frontage.
Professional soft washing systems are used to treat the roof tiles with a low-pressure application of an industry approved BioWash. This treatment penerates the subtrate of the surface and kills spores and roots of organic growth.
Skylight Stain Removal & Cleaning
Stains, algae and moss growth are removed from skylights using our soft washing system which not only removes staining but kills spores and organic roots that could be living in the skylight frame. Following this, a pure water, brush and pole system is used to clean any glass skylight, leaving a non-smear crystal clean finish.
Warehouse Roof BEFORE Cleaning
Warehouse Roof AFTER Cleaning
Benefits of Commercial Roof and Skylight Cleaning
Insurance, Responsibility, Safety
Keep in check your responsibility as a property owner or facility manager – insurance terms often require periodic roof cleaning. Moss growth and build up add considerable weight to the roof and blocked gutters, gullies and drains each winter as it falls off the roof into the gutters. A mismanaged roof begins as an eye saw but left unchecked becomes a real hazard and threatens to invalidate building insurance.
Building Maintenance
Avoid costly repairs to tile, slate, corrugated, and sheet steel roofs by keeping them clean and tidy. Following an initial moss removal and treatment service, our annual maintenance package mitigates against costly repairs that can follow broken tiles and water ingress.
First Impressions
Keep your building looking its best for customers and your workforce. The appearance of the building, including the roof, has a significant role to play in the custom you attract and culture of your work force.
Roof BEFORE Moss Removal
Roof AFTER Moss Removal
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.
- Security and Safety
- Consistency and Reliability
- Quality Assurance and Accountability
- Customisation and Professionalism
- Transparency and Trust
- Social Proof and Case Studies
You can read more about our commercial cleaning assurance here.
Skylight AFTER Cleaning
Skylight BEFORE Cleaning
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 - Roof Cleaning, Moss Removal and Skylight Cleaning
Roof cleaning should be tailored to the roof material and level of dirt, moss or algae. Our methods include:
Soft Washing: A low-pressure water spray combined with safe, biodegradable cleaning solutions to gently remove organic growth without damaging tiles or slates — often recommended for roofs because of its effectiveness and safety.
Pressure/Jet Washing: Used selectively with adjustable pressure for tougher stains or hard surfaces, but carefully controlled to avoid forcing water under tiles.
Steam Cleaning: Uses high-temperature steam to loosen and remove embedded dirt and biological growth without harsh abrasion — suitable for more delicate areas.
Hand Cleaning & Biocidal Treatments: For detailed work, technicians scrape, brush or apply fungicidal treatments to kill moss and delay regrowth.
DSC | Exterior Cleaning combines these techniques depending on your roof’s condition and material.
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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Commercial Roof Cleaning in Taunton
Commercial Roof Cleaning in Barnstaple
Commercial Roof Cleaning in Exeter
Commercial Roof Cleaning in Tiverton
Commercial Roof Cleaning in Cullompton
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Gutter Cleaning Commercial Pressure Washing Soft Washing Roof Cleaning Meet our team
Time to Transform
DSC delivers the very best in external cleaning and
restoration services delivered with excellence and integrity.
