Our Process

Every roof protects more than bricks and mortar — it protects families, businesses, history, and livelihoods. At JG Leadworks & Roofing, we know that entrusting someone with your property is a big decision.

From First Call to Lasting Roof

Our process has been designed to give you confidence at every stage: transparent, evidence-backed, and proven across homes, heritage sites, commercial buildings, and public projects in London and the Home Counties.

From the first phone call to final handover, our approach removes the uncertainty that too often surrounds roofing. With decades of combined experience, accredited craftsmen, and a commitment to Building Regulations and heritage standards, we deliver not just roofs — but peace of mind.

Our Roofing Process

01

Initial Contact & Free Survey

The journey begins with a conversation. Whether you call us about a sudden leak, a planned re-roof, or a heritage restoration, we arrange a free, no-obligation site survey. Unlike firms that send sales reps, our surveys are carried out by senior roofers with NVQs and decades of trade experience.

During the visit, we carry out a comprehensive inspection. For a flat roof, that might mean checking for signs of ponding, blistering, or seam failure. For a heritage slate roof, we’ll look for slipped tiles, failed fixings, or inadequate ventilation. For leadwork, we check for fatigue cracks, failed joints, or poor detailing.

You’ll receive immediate feedback on the spot. This ensures you know what’s happening above your head and what options are realistic. No pressure, no jargon — just clear insights grounded in experience.

02

Transparent Quotation & Options

Once the inspection is complete, we prepare a clear, itemised quotation. Every element is broken down — materials, labour, scaffolding, safety measures — so you know exactly where your investment is going. Alongside the numbers, we provide a written explanation of the methods and materials proposed.

Where options exist, we set them out clearly:

  • Repair versus replacement, explaining cost, longevity, and disruption differences.
  • Material options, such as felt versus liquid membranes for flat roofs, or tile versus slate for pitched.
  • Heritage considerations, like handmade clay tiles or Welsh slate where conservation rules apply.

No hidden extras, no vague wording. Each quote is designed to be decision-ready: you see the trade-offs, the warranties attached, and the compliance requirements. This transparency means you remain in control.

Micro-CTA: Review your tailored quote and select the option that fits your needs and budget best.

03

Preparation & Safety Setup

Before any work begins, we ensure your property and surroundings are protected. Scaffolding and access equipment are installed safely and in compliance with CITB training protocols. Gardens, driveways, and sensitive areas are sheeted or cordoned to prevent damage.

We also liaise with neighbours where necessary, especially in terraced or heritage areas, to minimise disruption. Risk assessments and method statements are prepared and shared. For sensitive sites such as hospitals, schools, or prisons, our team can provide DBS, NPPV, or enhanced vetting certification.

This stage is about building trust before a single tile is lifted. Clients see that safety and respect for the property are non-negotiable.

04

Skilled Installation or Repair

With preparation complete, the real craft begins. Here, decades of experience meet accredited standards.

  • Flat Roofing: We work with modern felt systems (Supreme, IKO), liquid-applied membranes (Kemper, Westwood, Proteus), and asphalt for robust waterproofing. Each system is installed to manufacturer standards, guaranteeing warranties remain valid.
  • Pitched Roofing: Our slate and tiling teams handle both natural Welsh slate and handmade clay tiles for heritage accuracy, alongside modern machine-made tiles for cost-effective solutions.
  • Leadwork: Traditional bossing, welding, and detailing using ALM lead ensures compliance with the Lead Sheet Association’s (LSA) rules, protecting valleys, chimneys, and parapets for decades.
  • Heritage Projects: We specialise in sensitive restorations for listed buildings, balancing authentic materials with modern weatherproofing methods.

Throughout installation, our supervisors conduct daily quality checks, ensuring workmanship and compliance. Work sites are kept clean and disruption kept minimal. Clients receive regular updates, photos, and reassurance that progress matches expectations.

Our roofers work as if it’s their own home or business overhead.*

05

Quality Assurance & Compliance Pack

No project is complete without evidence. At JG Leadworks, we follow a five-point QA protocol:

  1. Pre-installation surveys to identify risks and solutions.
  2. Material verification against supplier/manufacturer standards.
  3. Mid-installation checks aligned with Building Regulations.
  4. Safety audits covering scaffolding, access, and site security.
  5. Final inspection with photos and compliance documentation.

At handover, clients receive a compliance pack. This includes photographs, warranties, method statements, and insurance-ready documents. Where applicable, references to UK standards like BS 5534 (slating/tiling) or Part L (energy efficiency) are noted.

The result? A roof not only built to last but one backed by evidence — giving peace of mind to homeowners, landlords, and facility managers alike.

06

Final Walkthrough & Aftercare

We don’t just disappear after completion. A final walkthrough is conducted with the client, pointing out work completed, highlighting before/after evidence, and explaining warranties. For heritage sites, we also provide documentation for conservation officers if required.

Clients are given aftercare guidance, covering:

  • Maintenance intervals (e.g., biannual inspections).
  • Lifespan expectations of materials (e.g., slate 80–100 years; felt 10–20 years).
  • Signs of wear to monitor (blistering, slipped tiles, condensation).
  • How to book emergency call-outs or maintenance visits.

We also offer ongoing maintenance contracts for landlords, commercial facilities, and heritage custodians. This ensures roofs are inspected, cleaned, and minor issues fixed before they become major problems.

The reassurance? You don’t just get a roof — you get a partner for its lifetime.

Our Roofing Journey at a Glance

Sometimes it helps to see the journey in a single glance.

6 Steps, Simplified:

  1. Free Survey & Inspection
  2. Transparent Quotation & Options
  3. Preparation & Safety Setup
  4. Skilled Installation or Repair
  5. Quality Assurance & Compliance Pack
  6. Final Walkthrough & Aftercare

Each step is evidence-backed, regulation-compliant, and designed to keep you informed.

Flat Roofing Installation Image

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Ready to Begin?

If you’re looking for roofing specialists you can trust — from emergency repairs to heritage-grade restoration — JG Leadworks & Roofing are here to guide you through the process. Book your free survey today and see how our transparent, evidence-led approach protects your property and peace of mind.