Single ply specialists · Doncaster
Flat roofs built to last.
Commercial and domestic single ply roofing, refurbishment and planned maintenance across South Yorkshire, fitted to manufacturer specification and guaranteed for 20 years plus.
- Rated 5.0 from 5 reviews
- Award-winning Renolit installers
The specialists
Single ply is our specialism, with the right system for every roof.
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.
But not every roof suits single ply. When it does not, we also install PMMA and polyurethane liquid coatings and other proven systems, so you get the specification that fits your roof rather than the only one we offer. Whatever the system, it is installed to manufacturer specification and backed by a genuine, long-term guarantee.
About SuresealWhat we do
Flat roofing services
From commercial re-roofs and planned maintenance to home extensions and repairs, single ply is our specialism across every job.
01 Commercial Flat Roofing
Large-area single ply roofing for warehouses, units and public buildings. Phased, certified, minimal disruption.
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02 Roof Maintenance
Planned maintenance, surveys and minor repairs that protect your roof and keep manufacturer guarantees valid.
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03 Single Ply Flat Roofing
Hot-air welded PVC & TPO membrane systems, the watertight, long-life choice for flat and low-pitch roofs.
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04 Domestic Flat Roofing
Flat roofs for extensions, dormers, garages and porches, warm, watertight and finished to a high standard.
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05 New Roofs & Replacement
Full strip-and-refit replacements and brand-new flat roofs, built up as warm roofs and guaranteed for the long term.
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06 Flat Roof Repairs
Leak detection and lasting repairs, plus honest advice on whether a repair or a new roof is the smarter spend.
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07 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.
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08 Liquid Roofing
Cold-applied, seamless PMMA and polyurethane waterproofing for balconies, complex roofs and heavy detailing.
ExploreWhere to start
Three situations, one specialist.
Most people reach us in one of three places. Tell us which, and we take it from there.
Planning a new roof
Extensions, new builds and full re-roofs, specified in single ply from day one.
Explore MaintenanceKeeping it watertight
Planned upkeep and refurbishment that adds years to the roof you already have.
Explore RepairsStop a leak fast
Rapid flat roof repairs across South Yorkshire, with a clear fix and an honest quote.
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Why Sureseal
Thirty years of roofs that don't come back.
Manufacturer-approved systems, hot-air welded seams and certified, safety-led teams. The reasons our roofs keep their guarantees, and their reputation.
Manufacturer-approved systems
Installed using Renolit, Sika, Protan and Fatra membranes, fitted to spec for valid long-term guarantees.
Hot-air welded seams
Seams are welded, not glued, into one continuous waterproof skin, so there are no joints to lift or leak.
20-year-plus guarantees
Single ply membranes carry lengthy manufacturer guarantees and a realistic service life well beyond that.
No naked flame
A safer hot-air welded process, ideal for occupied homes, schools and commercial buildings.
How it works
A clear, no-pressure process
- 1
Free roof survey
We assess the deck, falls, drainage and detailing, then recommend the right membrane and build-up.
- 2
Clear written quote
A fixed, itemised quotation with the system, insulation spec and guarantee set out in plain English.
- 3
Strip & prepare
We remove the old covering, make good the deck and install insulation and any new falls required.
- 4
Membrane installation
The single ply membrane is laid, mechanically fixed or adhered, and all seams hot-air welded.
- 5
Detailing & sign-off
Upstands, outlets and trims are dressed in, the roof is inspected, and your guarantee is issued.
Rated 5.0 / 5
What our customers say
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.
Areas we cover
Local flat roofers, 20 miles around Doncaster.
Based in Armthorpe, we cover 40+ towns across the region. Find yours.
- 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
Good to know
Common questions
Check out our FAQ for the most commonly asked questions about single ply flat roofing.
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.