Single ply flat roofing specialists, Doncaster: Flat roofs, welded watertight.
Single ply roofing for homes and businesses across Doncaster and South Yorkshire. Every seam hot-air welded, every roof fitted to manufacturer specification and guaranteed for 20 years plus.
- Award-winning Renolit installers
- 20-year system guarantees
- 5.0 from our customers
Single ply membrane is a craft, and it is what we are known for. Get the falls, the detailing and the welded seams right, and a roof stays dry for decades.
When single ply is not right for a roof, we also install PMMA and polyurethane liquid systems, so you get the specification that suits the building.
About SuresealDrag the seam. See the difference.
A failing, ponding warehouse roof in Liverpool, stripped, re-decked and re-covered in Flex-R single ply.
Flat roofing services
From a kitchen extension to an 18,000 m² factory roof. Single ply is our specialism on every one.
- Commercial Flat Roofing Large-area single ply roofing for warehouses, units and public buildings. Phased, certified, minimal disruption.
- Roof Maintenance Planned maintenance, surveys and minor repairs that protect your roof and keep manufacturer guarantees valid.
- Single Ply Flat Roofing Hot-air welded PVC & TPO membrane systems, the watertight, long-life choice for flat and low-pitch roofs.
- Domestic Flat Roofing Flat roofs for extensions, dormers, garages and porches, warm, watertight and finished to a high standard.
- New Roofs & Replacement Full strip-and-refit replacements and brand-new flat roofs, built up as warm roofs and guaranteed for the long term.
- Flat Roof Repairs Leak detection and lasting repairs, plus honest advice on whether a repair or a new roof is the smarter spend.
- Electronic Leak Detection We test roofs electronically to pinpoint leaks and prove integrity, then give you a full report with every breach located and photographed.
- Liquid Roofing Cold-applied, seamless PMMA and polyurethane waterproofing for balconies, complex roofs and heavy detailing.
Recent projects
All case studies-
Liverpool · 2022 Warehouse roof refurbishment, Liverpool 500 m² across two roofs · Flex-R single ply membrane, mechanically fixed -
Leicester · 2019 Café room extension, Palmers Garden Centre, Leicester 500 m² · Icopal Monoplan PVC single ply, fully bonded -
Peterborough · 2026 Perkins Engines Plant Roof Refurbishment 3,000 m² · Centaur polyurethane liquid system -
Doncaster · 2021 Ardagh Glass Roof Refurbishment, Doncaster 18,000 m² · Renolit Alkorplan PVC single ply, mechanically fixed
- Years on flat roofs
- 25+
- Projects completed
- 1,000+
- System guarantees
- 20 yr+
- Customer rating
- 5.0
Approved installer for Fatra, IKO, Sika, Icopal, Protan, Bauder, Westwood, Triflex, Centaur, Renolit.
“Really happy with the flat roof on our extension. Sureseal fitted us in at short notice after another company let us down, and they were polite and professional throughout. Highly recommended.”
“They have worked on three of our residential properties now and the quality is some of the best we have seen. Reliable, neat and a pleasure to deal with.”
“Our kitchen roof was replaced quickly and without any fuss, and for a very reasonable price. Couldn’t ask for more, thank you.”
“Professional service from start to finish. Would definitely use again and highly recommend their roofing services.”
Based in Armthorpe. Working in 40 towns within 20 miles.
From Doncaster itself out to Goole, Retford, Worksop and Pontefract.
Choose a town to see how far it is from our base.
Every town we cover
- Doncaster
- Rotherham
- Barnsley
- Mexborough
- Conisbrough
- Thorne
- Hatfield
- Bawtry
- Tickhill
- Maltby
- Dinnington
- Bentley
- Adwick le Street
- Wath upon Dearne
- Swinton
- Askern
- Worksop
- Retford
- Gainsborough
- Goole
- Armthorpe
- Edenthorpe
- Kirk Sandall
- Sprotbrough
- Rossington
- Bessacarr
- Edlington
- Stainforth
- Wombwell
- Hoyland
- Cudworth
- Wickersley
- Aston
- Kiveton Park
- Harworth
- Epworth
- Crowle
- Snaith
- Pontefract
- Hemsworth
Common questions
What is single ply flat roofing?
Single ply is a flexible waterproofing membrane laid in one layer (rather than the multiple layers of traditional felt) and sealed at the joints to form one continuous skin. It is the system used on most modern commercial and domestic flat roofs because it is durable, light and long lasting.
How long does a single ply flat roof last?
A correctly installed single ply roof typically lasts 25 to 35 years, and many manufacturers back the membrane with a guarantee of 20 years or more. Lifespan depends on the system, the detailing and the quality of the installation, which is exactly where a specialist installer earns their keep.
Is single ply better than felt?
For most flat roofs, yes. Single ply has far fewer joints than built-up felt, is not reliant on a naked flame to install, and stays flexible in cold weather instead of cracking. Felt still has its place on smaller budgets, but single ply usually offers a longer, more reliable life.
What single ply systems do you install?
We are approved installers of Renolit, Fatra, Sika, Protan, Bauder, IKO, Icopal, Westwood, Triflex and Centaur systems, and we are an award-winning Renolit installer. Working across several manufacturers means we specify the right membrane for your roof rather than the only one we are trained on.
What if single ply is not the right system for my roof?
Single ply is our specialism, but it is not always the best answer. Where it is not, we also install PMMA and polyurethane liquid coatings and other proven waterproofing systems. We will recommend the system that suits your roof, its detailing and its access, not just the one we fit most often.
How much does a single ply flat roof cost?
Cost depends on the size of the roof, the system specified, the insulation required and access. Rather than guess, we carry out a free survey and give you a clear written quote with no obligation, so you know exactly what you are paying for before any work starts.
Get a free, no-obligation flat roofing quote
Speak to a single ply specialist today. We survey your roof, explain your options and put it all in writing, with no pressure.