Specialist Flat Roofing Services Across Southern England, the Midlands and South Wales

If your flat roof is leaking, ageing or simply not performing the way it should, you need a contractor who turns up prepared, works to specification and delivers a roof that keeps performing long after the scaffolding comes down.

Proactive Flat Roofing is a specialist flat roofing company working with facilities managers, main contractors, developers, property owners and homeowners across Southern England, the Midlands and South Wales. From single repairs to full replacements and new-build installations, you get a qualified team, the right system for your building, and a guarantee that actually means something.

Book your free 10-point flat roof survey, get an instant online quote, or call us on 01753 303775 for a no-pressure conversation.

Why property owners and contractors choose us

A flat roof should sit quietly in the background, doing its job for decades. When it starts to fail, it does not stay a small problem for long. Leaks turn into damp, ruined ceilings and downtime on live commercial sites.

We focus on solving the root cause, not painting over it. That means honest surveys, the right materials for your building, and installers who care about the detail.

A proper team, not a one-man band

Every project runs through a qualified surveyor, an installation crew and a dedicated quality control manager.

Guarantees that actually mean something

Project-specific warranties on commercial work and lifetime guarantees on residential roofs.

Free 10-point condition reports

with a written survey and a fully costed action plan, so you can brief stakeholders and plan budgets with confidence.

Industry-recognised accreditations

Accredited by TrustMark, CHAS, NFRC, Sika Sarnafil, Triflex, and IKO, ensuring every project meets the highest industry standards.

Warm-roof systems that cut heat loss

Prevent condensation and meet current building regulations.

Minimised downtime

We work to programme, coordinate with site managers and keep disruption to an absolute minimum.

Our flat roofing services

Every property is different, so we offer a full range of flat roofing services rather than a one-size-fits-all package. Each service is delivered to the same standard, by the same team, anywhere in our coverage area.

Flat roof replacement→

If your existing roof has reached the end of its life, a full replacement gives you a fresh start with a modern, energy-efficient system that should outlast the last one by decades. We strip back, inspect the deck, upgrade insulation where needed and install your new roof to current standards.

New flat roof installation→

Building an extension, a new home or a commercial development? We install new flat roofs that are watertight from day one, fully insulated and ready for whatever the British weather throws at them. We work closely with builders, architects and main contractors to keep your project on programme.

Commercial flat roof repairs and replacements→

From offices and warehouses to schools and retail units, we handle commercial projects of every scale with minimum disruption to your operations. You get experienced site management, proper risk assessments and a system designed for the long haul.

Flat roof repairs→

Not every problem needs a full replacement. If your roof has plenty of life left, we will find the leak, fix the cause and leave you with a roof that performs again. You get an honest answer either way, so you never pay for work you do not need.

Green roof installation→

A green roof looks beautiful, improves insulation, helps with drainage and supports biodiversity. We design and install green roof systems for both commercial buildings and homes, with the right structure to take the weight safely.

Flat roof insulation→

Upgrading your insulation is one of the quickest ways to cut heating bills and stop condensation forming inside your property. Our warm-roof builds keep the heat where you want it and meet current building regulation requirements.

Roof terraces and balcony conversions→

Turn an unused flat roof into a usable outdoor space. We build waterproof, safe and stylish terraces and balconies that add real value to your property, with the right detailing to protect what sits below.

Electronic leak detection→

Sometimes a leak is obvious. Often it is not. Our electronic leak detection finds the exact source of water ingress without ripping up your roof, so the fix is targeted, fast and far less expensive than guesswork.

Vanguard Roof Shield protective coating→

If your roof is structurally sound but the surface is tired, a Roof Shield coating can extend its life by years. It is a cost-effective alternative to replacement and ideal for larger commercial roofs where a full strip-and-replace is not practical right now.

Free 10-point flat roof survey

Not sure where to start? A free survey is the easiest first step. One of our experienced surveyors visits your property, carries out a detailed inspection and gives you a written report covering condition, lifespan, recommended action and indicative cost. No pressure to proceed.

Sectors we serve

From single-site refurbishments to multi-property programmes, we work across every commercial sector and look after homeowners and landlords too.

Offices and workspaces
Industrial and warehousing
Retail and hospitality
Education
Healthcare
Residential blocks
New-build developments
Listed and heritage buildings
Private homes, extensions and garages

How we work

We keep the process straightforward so you always know what is happening and why.

Get in touch

Send us a few details online, call 01753 303775 or use the instant quote tool for a quick ballpark figure.

Free survey

A qualified surveyor visits your property, inspects the roof properly and writes up a 10-point report.

Fully costed plan

You receive a clear, itemised proposal with the recommended system explained in plain English

Installation

Our team carries out the work to manufacturer specification, with on-site quality control checks throughout.

Sign-off and guarantee

You get the paperwork, the warranty and a roof that is built to last.

Where we work

Our teams work out of offices across the South, South West, South East, London, the Midlands, East of England and South Wales. You get the responsiveness of a local contractor with the specialist capability of a national one.

London →

Covering North London, South London, Central London and all surrounding areas.

Berkshire →

Based in Windsor, covering Reading, Slough, Bracknell, Maidenhead and surrounding areas.

Buckinghamshire→

High Wycombe, Milton Keynes, Aylesbury, Chesham and surrounding areas.

Hertfordshire→

Watford, Hemel Hempstead, Hertford, Stevenage and surrounding areas.

Oxfordshire→

Oxford, Banbury, Didcot, Bicester, Witney and surrounding areas.

Surrey→

Woking, Walton-on-Thames, Guildford, Leatherhead, Ewell, Esher, Camberley and surrounding areas.

Hampshire→

Southampton, Portsmouth, Basingstoke, Farnborough, Winchester, Andover and surrounding areas.

Kent→

Maidstone, Canterbury, Tunbridge Wells, Dartford, Ashford, Dover and surrounding areas.

Sussex→

Brighton, Hove, Worthing, Eastbourne, Crawley, Chichester, Hastings and surrounding areas.

Bristol→

and all surrounding areas.

Cornwall→

Truro, Falmouth, Newquay, Penzance, St Austell and surrounding areas.

Devon→

Exeter, Plymouth, Torquay, Paignton, Barnstaple, Exmouth, Newton Abbot, Tiverton and surrounding areas.

Dorset→

Bournemouth, Poole, Weymouth, Blandford, Bridport and surrounding areas.

Gloucestershire→

Gloucester, Cheltenham, Tewkesbury, Stroud and surrounding areas.

Somerset→

Weston-super-Mare, Bath, Taunton, Yeovil, Bridgwater and surrounding areas.

Wiltshire→

Swindon, Salisbury, Trowbridge, Chippenham and surrounding areas.

Essex→

Chelmsford, Colchester, Southend-on-Sea, Basildon, Brentwood and surrounding areas.

Birmingham→

Birmingham, Solihull, Wolverhampton, Walsall, West Bromwich, Sutton Coldfield, Dudley, Halesowen and surrounding areas.

Herefordshire→

Hereford, Leominster, Ross-on-Wye, Ledbury and surrounding areas.

Staffordshire→

Stoke-on-Trent, Stafford, Burton-upon-Trent, Cannock, Lichfield and surrounding areas.

Warwickshire→

Warwick, Leamington Spa, Rugby, Nuneaton, Stratford-upon-Avon and surrounding areas.

Worcestershire→

Worcester, Redditch, Kidderminster, Bromsgrove, Malvern and surrounding areas.

Monmouthshire→

Monmouth, Abergavenny, Chepstow, Caldicot, Usk and surrounding areas.

Accreditations & Awards

Google Reviews

    
 
 
      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
  
 
 
  
 
 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Frequently Asked Questions

How long does a flat roof last?

A properly installed modern flat roof should last 25 to 40 years, depending on the system you choose. Older felt roofs typically last 10 to 15 years. If yours is approaching that age and showing signs of wear, it is worth booking a survey before problems start.

What type of flat roof is best?

It depends on your building, your budget and how you plan to use the roof. Single-ply membranes like Sika Sarnafil are excellent for large commercial roofs. Liquid systems like Triflex suit complex shapes. EPDM rubber is a solid choice for many domestic extensions. We recommend the right system based on your property, not on what we have in the van.

Do I need a full replacement or just a repair?

Often it is a repair, sometimes it is a replacement, occasionally it is somewhere in between like a protective coating. The honest answer comes from a proper survey, which is why we offer it for free.

How much does a new flat roof cost?

Cost depends on size, access, the existing structure, insulation requirements and the system chosen. Use our instant quote tool for a quick ballpark, or book a free survey for a fully costed plan tailored to your roof.

Get Your Quote

Are you insured and guaranteed?

Yes. We carry full public liability insurance, and we offer a lifetime guarantee on residential roofs along with project-specific warranties on commercial work. You get the paperwork on completion.

Ready to talk about your project?

Whether you have a clear brief or just a leak and a worry, the easiest next step is the free survey. You get a proper inspection, a written report and a costed action plan, with no obligation and no pressure to proceed.

Book your free 10-point flat roof survey online, get an instant quote in minutes, or call us on 01753 303775 and we will take it from there.