Nationwide Contractors

Commercial & Industrial Roofing Specialists — UK & Ireland Coverage

G19 Flat Roofing Ltd deliver planned works, refurbishments and reactive repairs for commercial and industrial sites across the UK & Ireland. Expect straightforward communication, professional site standards, and workmanship built for long-term performance.

UK & Ireland Coverage
Flat Roofing & Waterproofing
Industrial & Commercial Sites
Storm Repairs & Make Safe
Phone: 07407191919  ·  Email: g19roofingltd@gmail.com

About G19 Flat Roofing Ltd

We deliver commercial and industrial roofing works with a practical, programme-led approach — keeping sites watertight, compliant and operational while works are completed.

What we do

We provide end-to-end roofing and waterproofing solutions for industrial units, warehouses, retail roofs, managed estates and commercial buildings. From minor repairs through to full replacement programmes, we help clients protect assets, reduce downtime and extend roof life.

Our teams work across large roof areas and complex details — prioritising robust preparation, correct specification, and clean, professional finishes that stand up to the demands of commercial environments.

If you manage multiple sites, we can support with structured reporting and consistent delivery across locations, helping you plan repairs, refurbishments and replacements with clarity.

Flat Roofing Systems: new build, overlays, replacements and refurbishments for commercial/industrial roofs.
Liquid Waterproofing: seamless protection for complex details, penetrations, edges and high-risk areas.
Membrane / Felt Solutions: commercial-grade waterproofing systems for performance and longevity.
Roof Access & Hatches: roof hatches, access upgrades and practical roof entry solutions where required.
Detailing & Drainage: outlets, upstands, parapets, gutters and water management improvements.
Surveys & Maintenance: condition surveys, planned maintenance and lifecycle support to reduce reactive callouts.

How we work

We keep things simple: clear scope, clean working practices, and straightforward communication from start to finish. You’ll know what’s happening, what’s next, and what the options are.

We’re set up to support both one-off projects and multi-site programmes, with a focus on consistent delivery and tidy handovers. If you have urgent issues, message us with photos and location — we’ll advise quickly on next steps.

For planned works, we’ll help you define the scope, agree the programme, and deliver quality checks throughout.

Site survey, photos and practical scope review
Programme planning and mobilisation
On-site standards, safety-first working practices and quality checks
Completion reporting and clean handover
Aftercare, maintenance options and follow-on works if needed

Compliance, Site Standards & Sectors

Built for commercial environments — structured delivery, professional working practices, and clear reporting for stakeholders. (Edit the items below to match your exact accreditations/insurance.)

Documentation
RAMS Risk assessments & method statements.
Safety
Working at Height Commercial site-safe standards.
Insurance
Public Liability Available on request.
Reporting
Photo Reporting Before/after evidence & recommendations.

Sectors we work in

We regularly support commercial and industrial environments where performance and minimal disruption matter.

Warehouses Industrial Units Logistics Hubs Retail Roofs Managed Estates Commercial Offices

Roofing Services

Practical, commercial-grade roofing solutions designed for busy sites. Message us on WhatsApp with your location, photos and a brief description — we’ll come back quickly with the right next step.

RR

Reactive Repairs & Leak Response

Fast fault-finding and targeted repairs to reduce disruption and prevent further internal damage.

  • Leak tracing and localised repairs
  • Make-safe works and temporary protection
  • Photo reporting and recommendations
FR

Flat Roof Refurbishments

Refurbishment works to improve performance and extend roof life without unnecessary downtime.

  • Overlay options where suitable
  • Detail upgrades and water management
  • Programme-led delivery
LW

Liquid Waterproofing

Seamless waterproofing for complex areas, penetrations and high-risk details.

  • Upstands, trims and edge details
  • Penetrations and awkward junctions
  • Durable, continuous protection
MB

Membrane / Felt Systems

Commercial-grade systems selected for performance, longevity and suitability to site needs.

  • Specification-led installs
  • High-traffic considerations
  • Robust detailing and finishes
AC

Roof Access & Hatches

Practical roof access solutions to improve usability, safety and maintenance ability.

  • Roof hatch installation
  • Access upgrades and detailing
  • Integrations with waterproofing
PM

Planned Maintenance

Proactive inspections and maintenance to reduce reactive callouts and protect assets.

  • Condition surveys and reports
  • Minor works and preventative fixes
  • Budget-friendly planning support

Recent Projects

A rotating gallery of recent commercial and industrial roofing works. Use the arrows, dots, or swipe on mobile.

Liquid Waterproofing Finish

Seamless waterproofing across the roof area with clean, durable detailing.

Roof Refurbishment Works

Refurbishment programme delivered with tidy finishes and site-safe standards.

Detailing & Protection

Targeted works around details, outlets and edges to keep the building watertight.

Liquid Waterproofing Finish

Seamless waterproofing across the roof area with clean, durable detailing.

Roof Refurbishment Works

Refurbishment programme delivered with tidy finishes and site-safe standards.

Detailing & Protection

Targeted works around details, outlets and edges to keep the building watertight.

Liquid Waterproofing Finish

Seamless waterproofing across the roof area with clean, durable detailing.

Roof Refurbishment Works

Refurbishment programme delivered with tidy finishes and site-safe standards.

Detailing & Protection

Targeted works around details, outlets and edges to keep the building watertight.

Liquid Waterproofing Finish

Seamless waterproofing across the roof area with clean, durable detailing.

Roof Refurbishment Works

Refurbishment programme delivered with tidy finishes and site-safe standards.

Nationwide Coverage

We cover the whole of the UK and Ireland for commercial and industrial roofing — planned works, refurbishments, reactive repairs and multi-site programmes.

Built for multi-site delivery

If you’re managing multiple locations, we can support with consistent delivery and clear reporting across your estate. For reactive issues, message us with photos and location — we’ll advise quickly and help you move forward.

We understand commercial sites need reliability, clean working practices and minimal disruption. That’s why we keep communication direct, turn up prepared, and focus on quality details that reduce repeat issues.

Whether it’s a planned refurbishment programme or an urgent leak, you’ll get a professional approach with practical recommendations.

Nationwide travel for commercial/industrial roofing
Emergency response and make-safe works
Refurbishments, upgrades and replacement programmes
Clear reporting for stakeholders and handover
UK & Ireland Coverage Nationwide reach across England, Scotland, Wales, Northern Ireland and Ireland.
UK and Ireland silhouette coverage
Full UK & Ireland coverage · Multi-site programmes & reactive repairs

Contact & Roofing Enquiries

Share a brief overview of your roofing requirement and we’ll be in touch quickly with next steps, site survey options and programme availability.

G19 Flat Roofing Limited

Commercial & Industrial Flat Roofing Contractors
UK & Ireland

Director: Jon Lenihan

Phone / WhatsApp: 07407191919 · Message on WhatsApp

Email: g19roofingltd@gmail.com

For framework opportunities, national programmes or emergency storm damage works, please message Jon on WhatsApp or email directly.

Emergency and weather-related works can often be mobilised at short notice depending on location and scope.

Message us on WhatsApp

The fastest way to get a quote, arrange a site visit or request emergency support. Send photos, site location and a brief description — we’ll respond promptly.

Chat on WhatsApp

Email: g19roofingltd@gmail.com

Prefer email? Send drawings, photos or site details and we’ll reply quickly.

💬 WhatsApp