Specialists in Flat Roofing for Commercial Properties
Reliable. Compliant. Built to Last.
A Failing Flat Roof Puts Your Business at Risk
Leaks, ponding, or visible degradation on a commercial roof can cause serious disruption—and spiralling costs if ignored. Whether you’re managing a warehouse, office block, retail unit or school, we understand that downtime isn’t an option.
You Deserve a Roof That Works!
At CRS Roofing, we provide expert flat roofing services that help protect your premises, your assets, and your reputation. From proactive repairs to complete re-roofs, our team delivers reliable, compliant solutions that last.
Your Business Deserves More Than a Quick Fix
Flat roofs are common across all types of commercial buildings—but many suffer due to substandard installation, poor drainage, or ignored maintenance. We specialise in diagnosing and resolving commercial roofing issues quickly and properly, so you can focus on running your business.
Whether you’re responsible for a single building or a property portfolio, we offer:
- Detailed inspections and reporting
- Tailored material advice (EPDM, GRP, Bitumen)
- Solutions built around your operational needs
What Makes CRS Roofing the Right Choice?
Flat Roof Specialists
Flat roofing isn’t just something we do—it’s something we focus on. Whether it's felt, EPDM rubber, or GRP fibreglass, we work with all flat roof systems and can advise you on the best option for your building and budget.
Repairs or Full Replacements
Not every issue needs a full replacement. We’ll assess your roof and let you know if a simple repair or overhaul is all that’s needed to restore performance.
Honest, Helpful Advice
No jargon, no pushy sales. Just straightforward explanations of what’s wrong, what your options are, and what we’d do if it were our own property.
Fast Quotes, Fast Action
You won’t wait weeks to hear from us. We reply within 12 working hours and aim to deliver quotes within 72 hours of your site visit.
Trusted Across the Region
With over 300 five-star reviews, customers come back to us for one reason: we’re reliable, transparent, and we do the job properly.
Our Commercial Flat Roofing Services
When you’re running an industrial operation, the last thing you want is roof trouble slowing down production or putting your facility at risk. At CRS Roofing, we specialise in delivering long-lasting, practical solutions tailored to the unique demands of industrial buildings.
Emergency Repairs
Urgent leaks or storm damage? We respond fast to protect your premises.
Planned Flat Roof Repairs
Scheduled works to address known issues, with minimal disruption to operations.
Roof Overhauls & Refurbishment
Upgrade ageing roofs with modern materials—without the cost of full replacement.
Full Flat Roof Replacements
Stripping and re-covering with durable, high-performance systems that meet modern standards.
Ongoing Maintenance Contracts
Preventative maintenance to extend roof life and reduce emergency callouts.
Frequently Asked Questions (FAQs)
Will a Flat Roof Always Leak?
Flat roofs on commercial buildings often carry a reputation for being more leak-prone than pitched roofs—but that doesn’t mean they’re destined to fail. The truth is, a well-installed, professionally maintained flat roof can perform reliably for decades.
In commercial settings, issues often arise from overloaded drainage systems, poor detailing, or deferred maintenance. Water pooling, blocked outlets, or cracked joints can lead to leaks that disrupt business operations or damage stock and interiors. That’s why proactive inspections and planned maintenance are essential.
We help facilities managers and property teams identify small issues before they become costly problems, keeping your building safe, compliant, and operational.
Which Type of Flat Roof is Best for Commercial Properties?
Choosing the right flat roof system for a commercial building depends on usage, access requirements, budget, and lifespan expectations. Here are the three most popular systems we work with:
- EPDM (Rubber Membrane): A highly durable rubber membrane ideal for large commercial roof areas. Known for its flexibility, weather resistance, and low maintenance, EPDM offers a cost-effective solution for long-term performance. Suitable for warehouses, schools, and offices alike.
- GRP (Glass Reinforced Plastic): Perfect for plant rooms, access walkways, and areas with frequent foot traffic. GRP is extremely tough, seamless, and UV-resistant, making it a great fit for high-demand environments such as healthcare or retail premises.
- Bitumen (Torch-On): A traditional layered system still widely used in commercial flat roofing. Bitumen provides excellent waterproofing and resilience, but may require more regular inspections to maintain its condition.
We’ll recommend the best system based on your building’s specific needs, roof structure, and budget—ensuring a solution that’s practical and built to last.
Shape What is the Life Expectancy of a Commercial Flat Roof?
Commercial flat roof lifespan is largely dictated by the material used and how well the system is maintained over time. Here’s a typical breakdown:
- EPDM: When installed correctly, EPDM can last 25 to 30 years, offering excellent protection against UV, cold, and standing water. A reliable choice for commercial clients looking for longevity and low maintenance.
- GRP: With proper care, GRP roofs can exceed 40 years. The seamless design makes it highly resistant to water ingress, even on complex roof layouts or high-traffic areas.
- Bitumen: Bitumen roofs have a lifespan of 15 to 20 years, but with regular maintenance and inspection, their service life can be extended. They’re often used on schools, community buildings, and older commercial stock.
We offer tailored maintenance plans to help commercial property owners extend the lifespan of their roof, avoid disruption, and control long-term costs.
What is the Most Affordable Roofing Option for a Flat Roof?
If you’re managing costs across a commercial portfolio or working to a tight capital budget, Bitumen (Torch-On) is typically the most cost-effective flat roofing system. It’s affordable to install, and its multi-layer design provides solid waterproofing for everyday commercial use.
However, bitumen systems may require more frequent inspections and occasional patching, especially on older buildings or those exposed to severe weather.
While initial costs matter, so do long-term implications. We’ll help you weigh the trade-offs between upfront savings and future maintenance to ensure your investment works both now and over the next 10+ years.
What is the Longest Lasting Flat Roof Material?
GRP (Glass Reinforced Plastic) is widely considered the most durable flat roofing material on the market, with a lifespan that can exceed 40 years. It’s particularly valuable in demanding commercial environments, where consistent performance is critical.
GRP forms a fully bonded, seamless membrane, making it resistant to leaks, UV degradation, and structural movement. It’s a top choice for buildings with roof access walkways, solar panels, or plant equipment.
Although the initial investment in GRP is higher, its long-term reliability and minimal maintenance make it a smart business decision for those looking to reduce future disruption and repair costs.
We’ll guide you through the decision, factoring in your building’s usage, compliance requirements, and return on investment.
What Our Customers Say !
Great service and professional job.’
Jack M.
Polite, friendly, professional, and reliable. Great timekeeping too. I’d definitely use them again if needed.
Sarah M.
Prompt and cheerful service. All work discussed and completed exactly as agreed and as per estimate.
Stephen K.
Very good and clean work, quick, efficient, and very knowledgeable group of workmen. Also, very pleasant and friendly. Would highly recommend.
Matthew A.
Need a Flat Roof That Won’t Disrupt Your Business?
Stop dealing with leaks, downtime, and costly callouts. We’ll get your commercial flat roof sorted—professionally, cost-effectively, and with zero hassle.