Built to last 30–40+ years
A flexible, UV-stable membrane engineered for the long term — so your roof outlasts the building, not just the warranty.
Premium Flat Roofing · South Yorkshire
Single-ply flat roofing, finished properly.
JLH are Rotherham's specialists in premium single-ply PVC flat roofing, planned maintenance and electronic leak detection. Clean, refined, architectural: built to outlast the building.
Free surveys, always
Manufacturer-trained systems
20-year workmanship warranty
20yr
Workmanship warranty
18+
Years' experience
8
Approved systems
£0
Free surveys, always
Trained & approved across leading single-ply & liquid systems
Sika · Protan · Alwitra · Fatra · IKO · Icopal · Decothane · Triflex
What We Do
Specialist flat roofing services
Three things, done exceptionally well — plus the wider works to keep your roof watertight for decades.
Single-Ply PVC Installation
Seamless, mechanically-fixed or adhered single-ply PVC membranes — the premium, long-life flat roof system for new builds, extensions and replacements.
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Roof Maintenance
Planned, proactive maintenance and refurbishment that extends roof life, protects your warranty and prevents small faults becoming expensive failures.
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Electronic Leak Detection
Pinpoint the exact source of a leak with non-destructive electronic testing — followed by a clear report and a precise, lasting repair.
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Flat Roof Replacement
Strip your old, failed flat roof and re-roof with a modern single-ply system — warm-roof insulation upgrades available to meet current standards.
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Commercial Roofing
Single-ply systems for warehouses, units, offices and schools — minimal disruption, full documentation and long-term performance.
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Roof Lanterns & Skylights
Architectural roof lanterns and rooflights, perfectly detailed and watertight — bringing light into high-end flat-roof spaces.
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The JLH Difference
Why single-ply PVC
It's the premium flat-roof system — and the only one we install. Here's what that means for your property.
Truly watertight
Seams are hot-air welded into one continuous, homogeneous skin — no glue, no hand-laid joints, no weak points.
A crisp architectural finish
Clean lines and a flush, refined surface that suits high-end property — the luxurious, considered look JLH is known for.
Guaranteed quality
Installed by manufacturer-trained roofers and backed by a 20-year workmanship warranty plus the manufacturer's system guarantee.
How We Work
A simple, transparent process
01
Free Survey
We visit, assess the roof and listen to what you need — no pressure, no charge.
02
Clear Quote
A detailed, fixed written quotation with the exact system and finish specified.
03
Expert Install
Tidy, manufacturer-approved installation by experienced single-ply roofers.
04
Warranty & Aftercare
Sign-off, guarantee documentation and optional planned maintenance.
Ready for a roof that actually lasts?
Book a free, no-obligation survey across Rotherham & South Yorkshire — or measure up and get an instant guide price with our online cost estimator.
Proof, Not Promises
Case Studies
A few of our recent single-ply projects across South Yorkshire — explore each one in detail.
Bridgetown, Barbados
Flown out by a valued client to install a fully-welded Fatra single-ply valley — leak-free, thousands of miles from home.
House Extension, Sprotbrough
A Fatra warm roof with 130mm PIR and two large skylight openings, ready for glazing.
Green Roof, Milton Keynes
1,000 m² of Fatra single-ply with a full green-roof system — leak-tested watertight, in three weeks.
Where We Work
Proudly based in Rotherham
Covering Rotherham and all of South Yorkshire within roughly a 20-mile radius.
FAQ
Common questions
What is single-ply PVC roofing? +
Single-ply PVC is a flexible, durable membrane laid in large sheets with hot-air welded seams, creating a fully watertight, seamless flat roof with a typical design life of 30–40+ years.
Why do you specialise in single-ply PVC? +
Because it's the best flat-roof system available — durable, weld-sealed into one continuous skin, and beautifully clean to look at. We'd rather be exceptional at one premium system than average at several, and it's what lets us back every roof with a 20-year workmanship warranty.
Do you charge for a survey or quote? +
No — surveys and written quotations are always free and no-obligation across our coverage area.
Which areas do you cover? +
We're based in Rotherham and cover all of South Yorkshire within roughly 20 miles — including Sheffield, Doncaster, Barnsley and the surrounding towns.
What guarantee do you offer? +
Every JLH installation comes with a 20-year workmanship warranty, on top of the manufacturer-backed system guarantee for the membrane itself — so both the materials and the quality of the fit are covered for the long term. We'll confirm the exact figures for your chosen system as part of your free survey.
How much does a new flat roof cost? +
It depends on size, access and specification, but as a rough guide single-ply typically falls around £90–£150 per m², with insulation and rooflights on top. The only accurate figure is a fixed quote after a free survey — see our flat roof cost guide for the full breakdown, or get an instant guide price with our cost estimator.
How long will a single-ply roof last? +
A correctly installed single-ply PVC roof has a design life of 30–40+ years — comfortably longer than felt or GRP. More in our guide: how long does a flat roof last?
Do you fit felt or GRP fibreglass? +
No — we specialise solely in single-ply PVC because it outlasts and outperforms both. Here's an honest comparison: single-ply vs felt vs GRP.
Do you cover commercial roofs as well as homes? +
Yes — from domestic extensions to large industrial roofs. See our commercial roofing service and recent projects.
Get In Touch
Book your free survey
Call or email Joel and the JLH team — we'll get back to you quickly.