Flat Roofing Specialists
Professional GRP Fibreglass & Felt Roofing Installation, Repairs & Replacement
SCJ Roofing Solutions provides professional flat roofing services across Bromley and surrounding areas. With over 20 years of roofing experience, our skilled team installs, repairs and replaces GRP fibreglass and torch-on felt roofing systems, delivering quality workmanship and reliable waterproofing solutions for your property.
Our Flat Roofing Services
Reliable Flat Roofing. Lasting Protection.
A professionally installed flat roof provides effective weather protection for extensions, garages, outbuildings and other areas of your property. Choosing the right roofing system and ensuring correct installation are essential to its long-term performance.
At SCJ Roofing Solutions, we specialise in GRP fibreglass and torch-on felt roofing, providing professional installation, repairs and replacement services for a variety of flat roofing requirements.
Based in Bromley, our experienced roofing team understands the challenges associated with flat roofs, including effective drainage, waterproofing and weather resistance.
Whether you’re planning a new flat roof, experiencing leaks or considering replacing an ageing roofing system, we assess your requirements and recommend a practical solution suited to your property.
From small flat roof repairs to complete installations, we combine quality materials, skilled workmanship and attention to detail to deliver dependable results.
What We Offer
Complete Flat Roofing Solutions
We provide a comprehensive range of flat roofing services, helping property owners install, maintain and repair flat roofs.
GRP Fibreglass Roofing
GRP (Glass Reinforced Plastic) fibreglass roofing provides a durable, seamless waterproof finish suitable for many domestic flat roof applications. We install and repair GRP flat roofing systems, ensuring appropriate preparation, application and finishing details to provide effective weather protection.
Torch-on Felt Roofing
Torch-on felt is a widely used flat roofing system consisting of specialist bituminous membranes that form a waterproof roof covering. We provide professional torch-on felt installations, repairs and replacements for suitable flat roofing projects, using appropriate materials and installation techniques.
New Flat Roof Installation
Whether you're building an extension, garage or outbuilding, a correctly designed and installed flat roof is essential for lasting protection. We undertake new flat roof installations using suitable GRP fibreglass or felt roofing systems, taking account of the property's design, drainage requirements and intended use.
Flat Roof Repairs
Leaks, damaged membranes, cracks and deteriorating roof details can affect the performance of a flat roof. We assess existing flat roofing systems, identify visible defects and undertake appropriate repairs to help restore waterproofing and prevent further damage.
Flat Roof Replacement
When a flat roof has deteriorated extensively or repeated repairs are no longer practical, replacing the roofing system may be the most effective long-term option. We undertake complete flat roof replacements, assessing the existing condition and recommending appropriate materials and installation methods.
Flat Roof Maintenance
Regular inspections and timely repairs can help extend the serviceable life of flat roofing systems. We provide suitable maintenance work and practical advice to help identify potential problems, maintain drainage and protect your flat roof.
Modern Flat Roofing Solutions
GRP Fibreglass Roofing – Seamless Protection
GRP fibreglass is a popular flat roofing material, particularly for domestic extensions, garages and smaller roof areas. The system uses glass fibre reinforcement combined with resin to create a strong, continuous waterproof covering. Once correctly installed and cured, it provides a durable finish designed to withstand normal weather exposure.
Benefits of GRP Fibreglass Roofing
Seamless Waterproof Finis
A continuous GRP roof covering reduces the number of membrane joints where water penetration could otherwise occur.
Durable Roofing Surface
Correctly installed GRP roofing provides a strong, weather-resistant finish suitable for many flat roofing applications.
Low Maintenance
GRP roofing generally requires limited routine maintenance, although regular checks and keeping outlets clear remain important.
Neat, Modern Appearance
GRP offers a clean, consistent finish that can complement contemporary extensions and other flat-roofed structures.
Versatile Applications
Suitable for many garages, extensions, porches, dormers and other appropriately designed flat roofs.
Long-Term Performance
A properly specified and installed GRP roofing system can provide many years of effective protection.
Proven Waterproofing Solutions
Torch-on Felt Roofing – Practical & Dependable
Benefits of GRP Fibreglass Roofing
Reliable Waterproofing
Multi-layer felt roofing systems can provide effective protection against rainwater penetration.
Cost-Effective Solution
Torch-on felt can offer a practical balance between installation cost, performance and service life.
Flexible Roofing Material
Reinforced bituminous membranes can accommodate suitable roof shapes, junctions and detailing requirements.
Suitable for Various Roofs
Torch-on felt is commonly used on extensions, garages, outbuildings and other flat-roofed structures.
Established Roofing System
Felt roofing has a long history of use, with modern reinforced membranes offering improved durability and performance.
Repair Options
Depending on the roof's condition, localised damage may sometimes be repaired without replacing the complete covering.
Reliable Weather Protection
A correctly designed and installed roof helps protect your property against rain, wind and changing weather conditions.
Choosing the Right System
Which Flat Roofing System Is Right for You?
Both GRP fibreglass and torch-on felt can provide effective waterproofing when correctly specified and installed. However, each system has different characteristics, making one potentially more suitable than the other depending on your roof.
GRP Fibreglass Roofing
- Creates a continuous, seamless waterproof covering.
- Offers a neat, modern-looking finish.
- Commonly used on domestic extensions and garages.
- Requires careful preparation and suitable installation conditions.
- Can provide long-term performance with appropriate maintenance.
Torch-on Felt Roofing
- Uses reinforced bituminous waterproof membranes.
- Offers an established and versatile roofing solution.
- Suitable for a range of domestic and commercial applications.
- Can be a cost-effective option for certain roofing projects.
- May allow localised repairs depending on the condition of the roof.
The right choice depends on several factors, including roof size, design, substrate condition, drainage, insulation requirements and budget.
Our experienced team can assess your roof and explain which system may be more suitable for your property.
Spot the Warning Signs
Is Your Flat Roof Showing Signs of Damage?
Flat roofing systems are exposed to changing temperatures, heavy rainfall, standing water and general weathering. Over time, defects can develop that affect waterproofing performance. Recognising the warning signs early can help reduce the risk of more extensive water damage. Common signs that your flat roof may need repairing include:
- Water stains or damp patches on ceilings
- Leaks during or after heavy rainfall
- Cracks, splits or punctures in the roof covering
- Blistering or lifting felt membranes
- Damaged joints, edges or flashing
- Persistent standing water on the roof
- Deteriorating roof outlets or drainage details
- Soft or visibly damaged areas of roof decking
- Recurring leaks despite previous repairs
Some signs, such as standing water, require assessment rather than automatically indicating failure. However, persistent ponding can increase the risk of problems if drainage is inadequate. At SCJ Roofing Solutions, we assess the visible condition of your flat roof and recommend appropriate repairs or replacement work.
Making the Right Decision
Repair Your Flat Roof or Replace It?
Not every leaking or damaged flat roof needs a complete replacement. In some cases, localised defects can be repaired to restore the roof’s weather protection. However, widespread deterioration, saturated insulation, damaged decking or repeated waterproofing failures may make replacement more appropriate.
When Repairs May Be Suitable
- Damage is limited to a small area.
- Most of the waterproofing system remains sound.
- A localised joint, outlet or flashing requires attention.
- The underlying roof structure is in reasonable condition.
- A suitable repair can restore effective waterproofing.
When Replacement May Be Necessary
- The waterproof covering has deteriorated extensively.
- Leaks continue despite previous repairs.
- Water has damaged the underlying decking or insulation.
- The existing system is unsuitable or has significant installation defects.
- Extensive repairs would offer poor long-term value.
Our team can assess your flat roof’s condition and explain the available options, helping you make an informed decision about the most practical solution.
How We Work
Professional Flat Roofing From Start to Finish
Whether we’re installing a new GRP fibreglass roof, repairing a felt roof or replacing an existing system, we approach each project with care and attention to detail.
1. Roof Assessment
We discuss your requirements, assess the condition of your roof where appropriate and identify any visible waterproofing or drainage concerns.
2. System Recommendation
We consider suitable flat roofing materials, insulation, drainage and other relevant factors before recommending an appropriate solution.
3. Professional Installation
Our experienced team undertakes the agreed roofing work using appropriate materials and installation methods for the selected system.
4. Quality Finishing
We pay particular attention to roof edges, outlets, flashing, junctions and other details that contribute to effective waterproofing.
Experience You Can Trust
Reliable Local Flat Roofing Specialists
With over 20 years of roofing experience, SCJ Roofing Solutions provides professional flat roofing services backed by practical knowledge, skilled workmanship and dependable customer care.
Experienced Roofing Team
Extensive experience across different roofing systems, materials and property requirements.
GRP & Felt Roofing Expertise
Professional installation and repair services for GRP fibreglass and torch-on felt roofs.
Quality Workmanship
Careful preparation, suitable materials and attention to important waterproofing details.
Practical Roofing Advice
Straightforward recommendations based on your roof’s condition and requirements.
Repairs & Replacements
From localised roof leaks to complete flat roof installations and replacement projects.
Local Roofing Specialists
Based in Bromley, providing flat roofing services across surrounding areas.
Flat Roofing Projects
See Our Work in Action
From new flat roofs on extensions and garages to repairs and complete roofing replacements, our projects demonstrate the care and workmanship we bring to each installation.
What Our Customers Say
Trusted by Our Customers
EXCELLENT
Based on 19 reviews
Posted on Google![]()
GiGi BaileyTrustindex verifies that the original source of the review is Google.
This is an amazing roofing company. The quote was fair, the work was of a high standard. Communication between myself and the company was excellent. I was informed when the roofers could not work due to the extreme weather. The roofers and plasterer were polite and very tidy. Half the time I didn't realise that they were even on the roof. Best of all was that the quote was spot on and there were no hidden costs. I will be recommending them to all my friends and family.Posted on Google![]()
Dan MastersTrustindex verifies that the original source of the review is Google.
SCJ replaced the flashing on my chimney. They were easy to communicate with, punctual and done a tidy job. Would recommendPosted on Google![]()
Anna DoddTrustindex verifies that the original source of the review is Google.
Fantastic company- SCJ were efficient and professional from start to finish. Really happy with the new roof on our extension and a really lovely group of lads. Office staff were exceptional and kept us well informed in a friendly and courteous manner. Great job, Team SCJ!Posted on Google![]()
Paul ArmstrongTrustindex verifies that the original source of the review is Google.
We recently had a complete roof replacement carried out by SCJ Roofing Solutions and I honestly couldn’t fault the service from start to finish. Sam came out to quote and was polite, professional and very clear in explaining the scope of works. The job itself was slightly awkward due to the property being on a main road, with scaffolding required to both the front and rear, but the team handled the logistics without any issues. Anna in the office was an absolute superstar — she kept everything organised, communicated clearly throughout and made the whole process run smoothly. The guys on site were always professional, respectful and kept the area clean and tidy each day. Most importantly, the quality of the roofing work was excellent and we are extremely happy with the finished result. I would highly recommend SCJ Roofing Solutions to anyone looking for a reliable and professional roofing company.Posted on Google![]()
Jonathan EvansTrustindex verifies that the original source of the review is Google.
Came out within 24 hours and fixed on the day - great service and people - highly recommendPosted on Google![]()
Silas DexterTrustindex verifies that the original source of the review is Google.
I found Sam through the nfrc so I assumed they would be quality and I couldn’t be happier with our new roof. Scj are responsive and fairly priced for the excellent quality work they carry out. I’d recommend scj to anyonePosted on Google![]()
François-Xavier FringantTrustindex verifies that the original source of the review is Google.
Fantastic experience with Sam who came today to assess a leak coming from the roof. He gently and clearly explained his opinion and identified a simple fix. Highly recommend, I will not hesitate to reach out to SCJ for future roofing needs in the future.Posted on Google![]()
Helen STrustindex verifies that the original source of the review is Google.
I came across SCJ Roofing via Velux while seeking help with my windows. They came out, and I was so impressed as they were polite. helpful and honest. The issue was tricky, but they gave it much thought, including recommending just leaving it. They sent a very well-priced quote that was clearly set out and based on the most cost-effective solution. They never rushed me into a decision, either. In the end, I decided against that specific work; however, when I had a more major and straightforward roofing issue, I called them out. Again, the service was impeccable. The quote was, again, clear, well-priced and based on the most cost-effective way to do the work. I immediately accepted and was not disappointed. Communication was excellent; I was kept updated and felt informed. I was so happy I had used them; the care, communication and consideration taken were fantastic. They gave me lots of great advice and ensured there were no other issues with the roof too. All in all, it was a great experience- I recommend them.Posted on Google![]()
Spencer HiscockTrustindex verifies that the original source of the review is Google.
We very recently used Sam and his team at SCJ Roofing to fit a new flat roof and repair a leak in the main roof. From the very first inspection/quotation through to all the work being completed we were very satisfied. I have since referred Sam and his team to family and friends and he has carried out work to a very high standard and all have been happy. Will always highly recommend
Local Flat Roofing Specialists
Flat Roofing Across Bromley & Surrounding Areas
SCJ Roofing Solutions is based in Bromley, providing professional GRP fibreglass and felt roofing services across the surrounding areas. Our local service areas include:
- Bromley
- Beckenham
- Beckenham
- Chislehurst
- West Wickham
- Bickley
- Petts Wood
- Sidcup
Flat Roofing Advice
Your Questions Answered
The most suitable material depends on the roof’s size, design, condition, intended use and budget. GRP fibreglass and torch-on felt are both established waterproofing systems. A professional assessment can help determine which option is more appropriate for your property.
GRP stands for Glass Reinforced Plastic. It is a roofing system that combines glass fibre reinforcement with resin to create a continuous waterproof covering. It is commonly used on domestic extensions, garages and other suitable flat roofs.
Torch-on felt roofing uses reinforced bituminous membranes, with suitable layers bonded using controlled heat to create a waterproof roof covering. It is commonly used on flat roofs for domestic and commercial properties.
A correctly specified and installed GRP fibreglass roof can often provide 20–30 years or more of service, depending on the system, installation quality, exposure and maintenance. Actual performance varies, and any warranty depends on the products and installation terms.
Modern torch-on felt roofing systems can often provide around 15–30 years of service, depending on the membrane specification, installation quality, roof design and maintenance. The expected lifespan should be considered alongside the manufacturer’s guidance.
Yes. Some flat roof leaks can be resolved through localised repairs, particularly when the surrounding waterproofing system remains in good condition. Extensive deterioration or damage to underlying materials may require more substantial work.
Neither system is automatically better for every property. GRP provides a seamless finish and is often selected for domestic applications. Torch-on felt offers an established, versatile waterproofing option that may be more practical for certain roof designs and budgets. The choice should be based on the specific roofing requirements.
Standing water, sometimes called ponding, can occur because of inadequate falls, blocked outlets, structural movement or uneven roof surfaces. Some temporary water retention can occur, but persistent ponding should be assessed to determine whether corrective work is needed.
Yes. Flat roofing is commonly used on home extensions, garages and other structures. The roofing system must be appropriately designed, including suitable drainage, waterproofing and insulation where required.
Yes. Periodic checks can help identify damaged waterproofing, blocked drainage outlets, deteriorating flashing and other defects. Keeping gutters and outlets clear is particularly important for effective rainwater drainage.
The cost depends on the size and complexity of the roof, whether GRP or felt is selected, access requirements, existing roof condition and any insulation or decking work required. SCJ Roofing Solutions can assess your roofing requirements and provide a quotation based on the proposed work.
Yes. SCJ Roofing Solutions is based in Bromley and provides flat roofing services across nearby areas, including Beckenham, Orpington, Chislehurst, West Wickham, Bickley, Petts Wood and Sidcup. Contact our team to discuss your location and project requirements.

