Commercial Flat Roofing Company
We are specialist commercial flat roofing replacement contractor, providing comprehensive and tailored services for commercial and large residential properties. With a dedication to excellence, our experienced team combines traditional expertise with innovative techniques to deliver impeccable workmanship and exceed your expectations.












Benefit From 45+ Years of Flat Roofing Experience
Since 1979, Maguire Brothers has been mastering the complexities of commercial flat roofing. This experience translates into tangible benefits for your project – from rapid problem diagnosis that saves costly delays, to refined installation techniques that extend roof longevity.
Our deep understanding of local building regulations, coupled with challenges specific to the diverse architectural landscape of London and the South of England, means we’ve successfully managed thousands of flat roofing projects across heritage buildings, modern office complexes, and large residential developments.
Our four decades in the industry have equipped us with invaluable insights into material performance under the climate conditions in England’s Southern counties. This expertise helps us recommend the most durable and cost-effective solutions for your specific building requirements. As approved installers for leading manufacturers and with self-certification capabilities for Building Regulations, we streamline project timelines while maintaining the highest quality standards.
WHY WORK WITH US?
Contact us to discuss your flat roofing needs and book a site visit
Our flat roof replacement service starts with a thorough inspection to evaluate the condition of the existing roof. We provide detailed reports with photographic evidence, clearly identifying problem areas and recommending the most suitable solution for your building.
CASE STUDIES
New & Featured Projects
Discover our flat roofing project portfolio showcasing high-quality refurbishments across multiple sectors and locations. We deliver flat roof replacements and refurbishments ranging from £10,000 to over £2 million.
Croydon University Hospital, Croydon
Friends Meeting House, London
Montague House, Leatherhead
BMW Manufacturing Plant, Oxford
Cobham Grange, Cobham
FLAT ROOF SYSTEMS
Specialist Commercial Flat Roofing Solutions for Your Building
These days, commercial flat roofing projects demand expert knowledge to ensure watertight, long-lasting results. Whether you’re dealing with an aging flat roof that needs replacement or planning a new development, our technical expertise helps you to avoid costly mistakes and identify the right solution first time.
We provide comprehensive guidance on your flat roofing project, including a full structural assessment and expert recommendations on modern, high-performance materials.
From major commercial developments to complex flat roof refurbishments, we’ve successfully delivered hundreds of flat roofing projects.
Built-Up Felt Systems​
Liquid Applied Roofs
Single Ply Membranes
Mastic Asphalt
Contact Maguire Brothers
Making sure the roof of your commercial facility is capable of protecting your building from adverse conditions is key to ensuring your long-term success. A single leak can lead to structural damage, product loss and work area hazards that could become increasingly dangerous and expensive over time. That’s why it’s so important to choose a company with years of experience in the area of commercial flat roofing.
Contact Maguire Brothers and put your project in the hands of an experienced flat roofing company with a history of success.
Frequently Asked Questions
How do I know if my Commercial Flat Roof is beyond repair?
Persistent leaks and cracks are clear indicators that it’s time to act. Just like any other roof, flat roofs are susceptible to moisture intrusion, leading to cracks and leaks over time.
If your commercial flat roof is beyond repair and requires replacement, look no further than Maguire Brothers. Our team will conduct a thorough inspection, provide a detailed report, and offer a quotation, empowering you to make an informed decision independently.
When selecting commercial flat roofing contractors, choosing the right company is paramount. Trust Maguire Brothers to deliver top-notch service and expertise for your roofing needs.
What is the typical cost of a flat roof replacement?
Costs depend on the roof’s size, materials, and complexity. We offer free, no-obligation quotes and ensure transparent pricing with no hidden fees.
Contact our specialist commercial flat roof installation team for a consultation.
How long does a flat roof last?
With proper maintenance, a high-quality flat roof can last between 20 and 40 years, depending on the material used. Regular inspections and timely repairs can significantly extend its lifespan. As a respected commercial flat roof company, at Maguire Brothers we’re committed to providing the best materials and installation service available.
Do you offer sustainable flat roofing solutions?
We are committed to adhering to the highest sustainable roofing guidelines and policies. Many of our materials are eco-friendly, and we provide options like green roofs or systems that enhance energy efficiency and reduce carbon footprints. Find out more about our sustainable commercial roofing solutions.