Residential & Commercial Flat Roofing Specialists

With Proactive Flat Roofing - Trusted by Homeowners, Landlords and Contractors In London, The South West & South East

Looking for help with your flat roof?

Whether you’re a homeowner, contractor, facilities manager or commercial property owner, Proactive Flat Roofing can help you solve 
your flat roof problems and get a long-lasting, reliable and energy-efficient flat roof. 

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Accreditations & Awards

Logo of the Contractors Health & Safety Assessment Scheme (CHAS) featuring the word "CHAS" in bold blue letters. Below, it reads "Accredited Contractor" with the website "www.chas.gov.uk.
Sika Sarnafil logo with “Sika” in yellow on a red triangle and “Sarnafil” in bold blue text below.
Logo of the Confederation of Roofing Contractors. It features a red, stylized roof graphic above the text "Confederation of Roofing Contractors," with "Approved Member" beneath in a circular badge design.
NFRC Logo
Large blue X on the left with the words Triflex Authorised Contractor to the right, Triflex in blue and Authorised Contractor in grey.
IKO logo with bold black letters IKO and a red shield featuring an acorn design on the left side.
A gold square badge features a trophy icon above the text Best Customer Service FINALIST 2023 in bold lettering. The background has a subtle star pattern.

Commercial & Residential Flat Roof Repairs, Replacements & New Builds

At Proactive Flat Roofing, we build, replace and refurbish flat roofs across the South of England – on homes, schools, commercial buildings, extensions, bungalows and everything in between.

To learn more about our services, choose one of the following options…

Get a FREE 10-Point Flat Roof Condition Report & Survey

Before we quote for any work, we carry out a full site inspection and provide a written condition report,  – completely free of charge.

You’ll get:

No pressure. No pushy sales pitch. Just clear answers, so you can make an informed decision without the pressure.

Prefer to get a ballpark cost before speaking to someone? No problem. Get your instant online quote in just a few clicks.

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Our Flat Roofing Services

Commercial Flat Roof Replacement

Complete replacement solutions for commercial flat roofing systems.

Commercial Flat Roof Repairs

Professional repair services for commercial flat roof systems.

Residential Flat Roof Replacement

Expert flat roof replacement services for residential properties.

Residential Flat Roof Repairs

Reliable repair solutions for residential flat roofing systems.

Commercial New Builds

Flat roofing solutions for new commercial construction projects.

Residential New Builds

Flat roofing installation for new residential construction.

Green Roofs

Eco-friendly green roof installation and maintenance services.

Flat Roof Insulation

Professional insulation services for improved energy efficiency.

Leak Testing

Comprehensive leak detection and testing services.

To learn more about our services, choose one of the following options…

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Want to Avoid a Costly Flat Roof Mistake?

Grab Your FREE 24-Page Guide: The Ultimate Guide to Choosing a Secure, Stylish Flat Roof

Replacing your flat roof is a big investment – and getting it wrong can cost you thousands in repairs, stress and lost time. That’s why we created this no-fluff, straight-talking guide to help you make a smart decision with confidence.

Inside You’ll Learn:

Why Choose Proactive Flat Roofing?

Residential & Commercial Specialists

From family homes and extensions to schools, commercial units and multi-property developments, we handle every project with the same level of care and professionalism.

Tailored Guarantees You Can Rely On

We offer a lifetime guarantee on residential roofs, and project-specific warranties for commercial work - so you’ve got long-lasting peace of mind.

A Proper Team, Not a One-Man Band

Your roof is installed by qualified surveyors, skilled installers and experienced quality control managers. No guesswork. No cowboys. Just expert work, done properly.

Regulation-Compliant, Energy-Efficient Systems

Our warm-roof systems help reduce heat loss, prevent condensation and keep you compliant with current building regulations - saving money in the long run.

Clear Pricing. Honest Advice. Zero Pressure.

You’ll receive a full report, transparent quote and expert recommendations - without the hard sell.

What Customers Say

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"In simple terms, Stephen knows his stuff!"

Recently I built five, four-bedroom homes in Surrey. While I’m experienced with refurbishing and extending properties, this was my first new build project, and the first time I had to meet standards set by the company that issues the building warranty. When I reached out for help with the flat roofs, I was looking for someone who understood what I was up against, and who could inspire confidence. Stephen was the first person to get back to me showing the right kind interest.

I’d spoken to others; I just wasn’t getting what I needed in terms of advice. So I was happy when I found someone on the phone that seemed friendly, straight talking and well informed. I liked him right away. I had a thousand and one questions for Stephen, and I particularly want to thank him for his patience. The building was nearly at roof level when I called him in. I needed lots of answers, and I needed them fast. When I described my issues to him on the phone, he instantly knew what I was talking about. And if there was ever a time that he didn’t know straight away he’d find out and get back to me. So his responsiveness impressed me.

Just to give you an example, I had my carpenters laying the wooden roof deck ready to hand over, when questions came up about the ventilation system. I was under pressure to get the roof on, and while it’s easy reading the book about the standard required for the warranty, it’s not one hundred percent clear. In this kind of situation you know he’s got the answers. “Don’t do it like that, this is how it needs to be done. Put this in, don’t do that. Simple.”

Stephen is extremely professional, very helpful. He’s well informed of his facts and he knows what he’s talking about. To put it in its simplest terms, he knows his stuff.

"Paul has done numerous new build and replacement flat roofs for me. Everybody walks away happy."

I own a building company in the Cotswolds, established in 1881. We do the typical work of general builders, including house extensions and refurbishments. In the nine years or so that I’ve known Paull he’s done numerous flat roofs for us. We have a really good working relationship and have always been really satisfied with his service.

He’s always coming up with things. What I mean is if you’ve got a problem, even if you think you know how to sort it out, he’ll normally find a better way to do it. Needless to say I don’t go to anybody else apart from Paull for flat roofing. Because I know that when he does it, it’ll be done right and everybody walks away happy.

Book Your FREE Flat Roof Survey & Condition Report

If your flat roof is leaking, sagging, or simply getting old, don’t wait for things to get worse.

Book your free survey today and get the information you need to make a clear, confident decision.

You’ll Get:

Before You Go!

Get Our Ultimate Guide to Choosing a Secure, Stylish Flat Roof

Discover the truth about waterproofing, insulation, fitting... and the hidden problem with guarantees.

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