Commercial Flat Roofing | Expert Flat Roof Specialists

Trusted by Main Contractors, Developers and Facilities Managers Across London, the Midlands, the South West and South East

Need a reliable solution for your flat roof?

Our expert commercial flat roofing services provide long-lasting protection, durability, and performance for businesses of all sizes.

Whether you are maintaining an existing building or managing a new development, Proactive Flat Roofing delivers reliable Commercial Flat Roof Repairs & Replacements alongside high-performance Commercial Roof Coating and Industrial Roof Coating solutions. Our systems are long-lasting, fully compliant and energy-efficient, designed to protect commercial properties and perform reliably for decades.

A worker in a yellow safety vest and cap stands on a newly installed commercial flat roofing surface, holding a tool. Trees and buildings can be seen in the background beneath a clear sky.

View of a flat commercial roof with a long white strip, safety scaffolding along the edge, and parked cars nearby. The scene suggests ongoing Commercial Flat Roof Repairs & Replacements or maintenance work on site.

Clients We’ve Worked With…

We install, upgrade and refurbish flat roofs on a wide range of commercial and public sector buildings – including schools, healthcare facilities, office blocks, blocks of flats and industrial units.

To find out how we can help, please choose the option that applies to you:

Why Choose Proactive Flat Roofing?

Specialist Commercial Team

We have a dedicated team with commercial expertise to ensure projects run smoothly, on time and to the highest standard.

Tailored Warranties

Our commercial warranties are tailored to the project, offering robust long-term protection that reflects the scale and scope of your work.

Regulation-Compliant Systems

All of our roofing systems comply with current building regulations. We will also provide guidance on insulation levels, fire safety, and drainage requirements.

45+ Years of Experience

Decades of commercial roofing expertise across schools, industrial sites, public buildings and large-scale developments.

Five-Star Rated Customer Service

We’re consistently rated five stars for our professionalism, reliability and clear communication, with dedicated support from start to finish.

What Our Commercial Flat Roofing Clients Say

    
 
 
      Posted on Google  
   
   Ben Inshaw 
 8 September 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent from start to finish – highly recommended I recently had a complete replacement of a large L-shaped flat roof, including multiple skylights, parapet walls and a number of other complexities. Having previously had the roof repaired twice by other companies and still experienced leaks, I decided enough was enough and wanted the whole roof stripped back and replaced by a reputable company. I’m so glad I found Pro Active Flat Roofing. I was massively impressed with the whole process from beginning to end. Trish was fantastic from the initial booking of the survey, keeping me regularly updated throughout. Steven carried out the initial survey and was incredibly thorough, talking me through everything and patiently answering my many questions. The quote came through quickly and was detailed, which gave me a lot of confidence in the company. Damian and Steven then worked with me on value engineering to get the project within my budget, without compromising on the quality of the solution. The whole team was also incredibly understanding when I unexpectedly needed to delay the project by a month. The operations and logistics were equally impressive. Becky and the team kept everything organised, with the scaffolding, skips and roofing team all arriving exactly when they were supposed to. I received regular updates throughout the project, including daily photographs, and any queries I raised were dealt with quickly and effectively. The team on the ground were brilliant. They were polite, professional, hardworking and clearly took a huge amount of pride in their work. They were real perfectionists and kept me updated throughout, including flagging any potential issues and discussing them with me before proceeding. The quality of the finished roof is excellent. It looks really smart and, most importantly, we’ve since had some torrential rain and it finally doesn’t leak! After years of dealing with problems, that is a huge relief. They also went above and beyond by sorting out an issue that was outside the scope of the project while I was away on holiday, which I was incredibly grateful for. I would have absolutely no hesitation in recommending Pro Active Flat Roofing. I’ve come to realise that you really do get what you pay for. Having previously tried to save money on cheaper repairs and ultimately paid twice, I only wish I had found Pro Active sooner. A fantastic company, an excellent team and a first-class job. Highly recommended.
  
 
     Posted on Google  
   
   Alan Brown 
 11 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. I engaged Proactive to replace a flat roof for me after being expensively let down mid-job by another 'firm'.  To say that Proactive are highly professional would be to understate the matter - they are simply excellent.  An initial survey, followed by a technical survey led to the production of the time and materials schedule and all associated documentation.  All costs were itemised up-front and a price for the whole job agreed.  I had my own (attractive and intelligent) project manager allocated and she kept things on track and kept me informed.  Everything was properly co-ordinated, including materials delivery, skips and scaffolding - thanks, Becky.  The guys who did the work, Jake and Rocco, were first-rate and fun to have around as well as working like beavers on some of the hottest days of the year. Once the job was done it was re-inspected by the relevant managers for any snagging issues before being signed off.  The guarantee is first-rate, and I have a client folder with dozens of photos showing the work progression at the end of each day. Overall, I could not be happier with this.  Well done, PRF.
  
 
     Posted on Google  
   
   james graham stones 
 2 August 2026
 
 
 Trustindex verifies that the original source of the review is Google. Having been let down badly with poor workmanship. I contacted Proactive Flat Roofing After a very thorough survey of my roof by Mr Stephen Day, it was decided that the only option I had was to get the roof redone. After getting another report from an independent surveyor who also condemned the roof as not fit for purpose. I accepted the very concise written quote from Proactive Flat Roofing.I also received a very good guide booklet explaining  in detail  their product and their guidance to getting your roof done. From the first site visit by Mr Stephen Day and then to the great communicational and organisational skills of the support team Becky,Cloe,Yvonne,Charlotte,and Carla. To the Skill and Professionalism of Dave the Roofing Technician. I genuinely believe that I could not have contracted a more dedicated to customer satisfaction driven team of people. If you are getting your flat roof done, do not go down the route I did by NOT checking the roofing businesses certification and accreditation certificates. To get a "Proper Job" done Think about giving PROACTIVE FLAT ROOFING A CALL
  
 
     Posted on Google  
   
   Georgina Cairns 
 2 June 2026
 
 
 Trustindex verifies that the original source of the review is Google. The team are highly professional. Paull helped us sort a roof on a house we had recently purchased that had some major construction flaws. Communication from the start was outstanding. Every member of staff we dealt with were very knowledgable and answered all our questions. Would certainly recommend, quality work.
  
 
     Posted on Google  
   
   Rich Jamieson 
 1 September 2025
 
 
 Trustindex verifies that the original source of the review is Google. A very professional organisation that attended site at agreed times to investigate our fault and came up with the required solution. The operatives were polite and friendly and kept us constantly informed of their progress. They kept disruption to a minimum and tidied up after them selves. A pleasure to deal with and would highly recommend.
  
 
     Posted on Google  
   
   Stuart Davis 
 12 June 2025
 
 
 Trustindex verifies that the original source of the review is Google. Highly organised, process-driven company. Clear communication & likeable site-team! Product looks good so hopefully it’ll be as good as I’m lead to believe it will be! 🤞
  
 
     Posted on Google  
   
   Nancy Harris 
 12 June 2025
 
 
 Trustindex verifies that the original source of the review is Google. Proactive Flat Roofing fixed a major roof leaking problem. Their product and professional services far outweighed other companies I researched. Camaron and Ryan worked tirelessly to complete the job and I am highly satisfied with the outcome.
  
 
     Posted on Google  
   
   peter monk 
 20 May 2025
 
 
 Trustindex verifies that the original source of the review is Google. Proactive Flat Roofing undertook a roof refurbishment project that I was overseeing in Battersea.  They were extremely professional, co-operative and adaptable (we had a few obstacles to overcome due to difficult tenants) and their workmanship was excellent.  Overall very pleased and wouldn't hesitate to recommend them on any future suitable projects
  
 
     Posted on Google  
   
   Fiona Harrison 
 23 March 2025
 
 
 Trustindex verifies that the original source of the review is Google. Professional, efficient, polite, reliable.  Excellent service and finally my flat roof isn't leaking!
  
 
     Posted on Google  
   
   kelly 
 17 October 2024
 
 
 Trustindex verifies that the original source of the review is Google. Alex Jake and Camaron did a brilliant job and kept me well informed when things was going to happen or adjust when needed too, they was all very polite and professional people 😊 thank you again guys
  
 
 
  
 
 
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