ROOF CARE
Trusted Roof Cleaning and Protection Specialists Across the UK
We help homeowners across the UK restore and protect their roofs by removing moss and debris, applying protective treatments and improving appearance without unnecessary disruption.
Professional Roof Cleaning, Sealing and Protection
Roofs age quietly. Moss settles in shaded areas. Algae holds moisture. Tiles lose their original surface protection. Over time, the roof begins to look tired and the structure works harder than it should. Most homeowners only notice the problem once it becomes visible from the ground.
"Our roof cleaning, sealing and colouring service restores both the appearance and the condition of your roof using safe methods, careful workmanship and advanced protective technology. We use Renotec® Roof Coating, a scientifically developed treatment engineered to help tiles resist weather influences, support long-term durability and improve roof aesthetics."
Whether you want to bring your roof back to life or protect it for the years ahead, we provide a calm, clear and professional service you can rely on.
Why Roof Cleaning Matters
Roof deterioration happens slowly. Moss, algae and debris collect in small patches until they begin to retain moisture and strain the tiles. Left untreated, this reduces the lifespan of the roof and leads to avoidable repairs.
Cleaning your roof helps by:
Reducing moisture retention
Improving appearance
Supporting tile longevity
Reducing moss and algae regrowth
Helping identify early-stage issues
Preparing the surface for sealing or coating
A clean roof is not just about how the home looks. It is about how well the roof can breathe, drain and withstand changing weather.
Our Roof Cleaning Process
Roof cleaning must always be handled responsibly, as using the wrong methods can damage tiles or force water into vulnerable areas of the structure. That is why we take a steady, controlled approach based on the condition and type of roof, using safe techniques designed to clean effectively without causing harm. By working carefully and avoiding aggressive pressure, we help protect the integrity of the roof while restoring its appearance and performance over time.
01
Initial Assessment
We inspect the roof, identify contamination, check for damaged tiles and choose the correct method for the material and condition.
02
Safe removal of moss and debris
Loose growth is removed gently to protect the tiles and prevent blockages in valleys or gutters.
03
Cleaning method selected for your roof
We use controlled techniques suitable for the tile type, age and condition of the roof.
04
Preparation for protective treatment
A clean surface ensures better adhesion and longer-lasting protection if sealing or coating is required.
05
Final inspection
We check the roof and surrounding areas, ensuring everything is clean, tidy and safe.
"Throughout the process, our focus is on protecting your roof as much as improving how it looks. We work carefully, explain what we are doing and make sure everything is left clean and secure before we leave. The result is a roof that feels properly looked after, with its condition respected and its appearance restored, giving you confidence that the work has been done the right way."
Professional Roof Sealing
Sealing provides an additional layer of protection that helps roof tiles resist moisture and slow natural deterioration over time. By creating a protective barrier on the surface, sealing reduces water absorption, limits the growth of moss and algae and helps tiles cope better with ongoing exposure to the elements. When applied correctly to a properly prepared roof, sealing supports long-term durability and helps maintain both the condition and appearance of the roof.
Sealing:
Helps reduce water absorption
Supports tile durability
Slows discolouration
Reduces moss return
Provides a stable base for coating
Helps maintain a consistent roof appearance over time
We only recommend sealing when the roof condition supports it and when it adds genuine value.
Renotec® Roof Coating is one of the most advanced protective roof coating systems available, developed by specialist engineers with more than 30 years of experience in roofing and surface protection technology. The system is designed to work with the structure of the roof rather than against it, helping tiles resist moisture, weathering and environmental exposure over time. When applied correctly to a properly prepared surface, Renotec® Roof Coating supports long-term durability, helps slow discolouration and enhances the overall appearance of the roof while maintaining breathability. This scientifically developed approach allows roofs to remain protected without compromising their integrity, making it a trusted solution for homeowners looking to preserve and extend the life of their roof.
"This coating provides a high-performance finish designed to improve roof appearance and support long-term durability."
Key features of Renotec® Roof Coating:
01
Extends the lifespan of tiles
Treatments are designed to support tile durability and minimise long-term surface erosion renotecroof.com.
02
Scientifically developed formula
The coating is engineered using a 100% acrylic, organic formula free of APEO, created to withstand rain, frost and sun exposure renotecroof.com.
03
Super-hydrophobic properties
The coating makes roof tiles extremely water repellent, keeping them dry and resistant to mould, mildew and microbial growth renotecroof.com.
04
Self-cleaning efficiency
Dirt cannot cling to coated tiles and washes away naturally with rainfall, helping the roof remain clean for years renotecroof.com.
05
Maintains a clean, refreshed appearance
The coating can transform an unattractive roof into one that looks cleaner, brighter and more uniformb renotecroof.com.
06
A cost-effective alternative to re-roofing
Roof coating offers significant savings compared to replacing roof tiles and is a practical solution for homeowners looking to restore rather than replace renotecroof.com.
"Together, these benefits make Renotec® Roof Coating one of the most reliable systems available for long-term roof care and protection. Rather than offering a short-term cosmetic improvement, the coating supports durability, moisture resistance and ongoing performance, helping roofs cope better with everyday weather exposure. For homeowners, this means a practical, cost-effective way to preserve the condition of their roof, improve its appearance and extend its lifespan without the disruption or expense of full roof replacement."
Renotec® Roof Coating — Advanced Protection for Your Roof
Roof Colouring for a Fresh, Uniform Finish
For suitable roof types, colouring can restore a clean, consistent appearance without the cost or disruption of replacing tiles. Faded or uneven surfaces are refreshed to create a more uniform look, helping the roof appear well cared for and structurally sound. When paired with Renotec® Roof Coating, colouring delivers more than visual improvement, adding an extra layer of protection that supports durability, reduces moisture absorption and helps maintain the roof’s condition over time. This combined approach allows homeowners to enhance both the appearance and performance of their roof in a practical, long-lasting way.
Colouring:
Refreshes faded or patchy roof areas
Improves overall kerb appeal
Creates a more uniform roof finish
Enhances protection when used with sealing
Helps slow future discolouration
Restores a well cared for appearance
We only recommend colouring where it is suitable for the tile material and condition.
Why Homeowners Choose GB Cosey Homes
Homeowners choose GB Cosey Homes because roof work requires more than surface-level treatment. It demands experience, careful assessment and methods that protect the structure as well as the appearance. Our approach is built around responsible techniques, clear communication and steady workmanship, ensuring every roof is treated in a way that suits its condition, materials and long-term needs.
Proven Roofing Systems
We use engineered roof coating systems that have been tested for durability and performance over time. These systems are selected to protect tiles properly, support longevity and improve roof appearance without compromising structural integrity.

Safe Working Methods
Every roof is approached with safety and responsibility in mind. We avoid aggressive techniques and choose controlled methods that suit the roof type, helping prevent damage while ensuring effective cleaning, treatment and long-term protection.

Clear Explanations
Before any work begins, we explain what we have found, what it means and which options are suitable. This allows homeowners to make informed decisions without pressure, confusion or unnecessary recommendations.

Careful, Respectful Work
Our team works steadily and with respect for your home at all times. From access setup to final checks, we aim to minimise disruption while maintaining clean working areas and a calm, professional presence throughout.

Roof-SpecificAdvice
We never recommend treatments that are unsuitable for the roof’s condition or materials. Each solution is chosen based on assessment, ensuring the work supports durability and performance rather than offering short-term cosmetic results.
Calm, Predictable Service
From initial inspection through to completion, our process is organised and easy to follow. Homeowners know what to expect at each stage, helping the experience feel controlled, reliable and professionally managed.

When roof work is carried out properly, the process should feel clear, controlled and easy to follow. From the first assessment through to completion, we focus on explaining what is happening, why it matters and how the work will be managed. This structured approach helps homeowners feel informed and confident at every stage, with no uncertainty about what comes next.
Our Exterior Work Includes:
We assess the roof, explain findings in clear language and guide you through the options that make sense for your home.
During the work
You can expect:
A tidy working environment
Safe access
Careful cleaning and preparation
Skilled application of sealers or coatings
After the work
We check the final finish, clear debris and ensure the roof is left looking clean, refreshed and protected.

Most homeowners notice:
A brighter, cleaner roof
Reduced moss return
Improved water behaviour
Greater confidence in the roof’s condition
"The aim is not only to improve how the roof looks, but to restore confidence in its condition and performance. By working carefully and finishing with thorough checks, we help ensure the roof feels protected and well cared for. For most homeowners, the result is a cleaner appearance, improved durability and peace of mind that the work has been done responsibly and to a high standard."
What You Can Expect
Nationwide Roof Cleaning, Sealing and Coating Services
We provide professional roof cleaning, sealing and coating services across the UK, including:
London, Manchester, Leeds, Birmingham, Nottingham, Cardiff, Bristol, Sheffield and surrounding regions.
Whether your roof needs careful cleaning, protective sealing or long-term coating, our team delivers the same high standard of preparation, safe working methods and consistent finish wherever we work.
If you're unsure whether we cover your area, give us a call. We'll let you know straight away.
Testimonials
Inviting someone to work in your home requires trust, and we understand how important that decision can be. Many homeowners come to us after feeling unsure or disappointed by previous experiences, so clear communication, reliability and respect for their space matter just as much as the finished work.
"The feedback shared here comes from real homeowners we have worked with across the UK. Their words reflect the care taken on each job, the way we explain the work clearly and the reassurance they felt throughout the process. These experiences matter to us because they show the standard we aim to deliver on every visit, in every home."
"Immediate Improvement and Professional Work"
Our roof had heavy moss build-up and looked worn. GB Cosey Homes cleaned it carefully and applied a coating that made the tiles look new again. The difference was instant. Their calm, steady approach made the whole process easy.
Paul S, Birmingham
1 month ago
"Clear Guidance and Safe Methods"
I was cautious about roof cleaning, but they explained the method clearly and worked safely throughout. The coating has made a huge difference to how the roof looks and performs. Highly recommended.
Linda W, Cardiff
3 months ago
"Honest Advice and Quality Results"
They checked our tiles first and only recommended colouring where it made sense. The results were excellent. The roof looks refreshed without needing replacement.
George T, Leeds
6 months ago
"A Team You Can Trust With Your Home"
They kept everything tidy, explained every stage and worked with real professionalism. Our roof looks clean and uniform again. The coating finish is impressive.
Sandra M, London
9 months ago
Roof Cleaning, Sealing and Colouring FAQS
Q1.
Do you always recommend coating after cleaning?
No. We only recommend sealing or coating where it is suitable for your roof type and condition.
Q2. Will roof cleaning damage my tiles?
No. We choose cleaning methods based on tile material and age to ensure safe, responsible work.
Q3. How long does the roof stay clean after coating?
Renotec’s self-cleaning and hydrophobic properties help the roof remain cleaner for years, depending on local conditions renotecroof.com.
Q4. Is colouring suitable for all roofs?
Only certain tile types are suitable for colouring. We assess this before making any recommendation.
Q5. Do you check gutters after cleaning?
Yes. We check and clear gutters as part of the service.