Before and after image showing an old, worn tiled roof transformed into a new, clean tiled roof by Kevington Roofing & Building LTD.

Expert Leadwork and Flashing in the City of Westminster


Call Your Local City Of Westminster Expert
01689 663319
Serving City Of Westminster & Westminster

Why Proper Lead Flashing Matters for Your Home

Lead flashing acts as the primary line of defence against water ingress in the most vulnerable areas of your roof. Wherever your roof surface changes direction or meets an obstacle like a wall, chimney, or roof valley, flashing is required to seal the joint. Over time, poorly installed or weather-worn flashing can crack, lift, or slide out of place, creating a direct path for rainwater to enter your loft space and damage your ceilings.We use both traditional sandcast lead for heritage projects and high-quality milled lead for modern applications, depending on what best suits your property. By correctly matching the code (thickness) of the lead to the specific job, whether it is Code 4 for standard flashings or Code 5 and 6 for box gutters and flat roofs, we guarantee a finish that will withstand decades of thermal expansion and contraction without tearing.

Croydon & South London

01689 663319

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Professional roofers from Kevington Roofing and Building LTD performing a new roof installation on a house in Bromley
Trusted Leadwork Specialists

Why Choose Kevington Roofing for Leadwork & Flashing in Swanley & Sevenoaks?

Navigating Conservation Rules in Westminster

Working on properties in the City of Westminster often involves navigating strict conservation area rules and protecting the historical integrity of listed buildings. As seasoned roofing contractors, we are fully aware of local building regulations and heritage requirements. We take the stress out of the red tape for you.We ensure all our leadwork complies with the Lead Sheet Training Academy (LSTA) standards and current local authority guidelines. This means using traditional techniques like lead bossing, where the lead is carefully shaped with wooden mallets rather than cut and soldered, preserving both the aesthetic and structural requirements of historic Westminster properties. You can rest easy knowing your home is in compliant, expert hands.

Our Thorough Approach to Leadwork Repairs

We believe in full transparency and keeping you informed at every stage of the process. Our approach begins with a comprehensive roof inspection to identify exactly where and why your leadwork is failing. We often use safe, high-resolution drone roof surveys to inspect hard-to-reach chimneys and valleys without the immediate need for costly scaffolding.Once the assessment is complete, we provide a clear, itemised, no-obligation quote. There are no hidden fees or surprise charges. If you choose to proceed, our directly employed roofers will safely remove the old materials, carry out any necessary brickwork repointing or structural repairs, and meticulously install the new lead flashing to create an impenetrable weather seal. We clean up thoroughly, leaving your property exactly as we found it, but with a highly secure roof.

The Long-Term Benefits of Professional Lead Roofing

Investing in high-quality leadwork offers significant advantages that go far beyond just fixing a current leak. A professionally installed lead system brings total peace of mind for the long term.Outstanding Longevity: When installed correctly using proper expansion joints and fixings, leadwork can easily last well over 60 years.Superior Weatherproofing: Lead is entirely waterproof and incredibly resistant to atmospheric corrosion, making it perfect for the challenging UK climate.Flexibility: The natural flexibility of lead allows it to expand and contract with seasonal temperature changes without cracking or breaking its seal.Kerb Appeal: Beautifully crafted leadwork adds a premium, traditional finish to your roofline, enhancing the overall appearance and value of your home.

Trusted Westminster Roofers You Can Rely On

Choosing a tradesperson to work on your home requires trust, and at Kevington Roofing and Building LTD, we work hard to earn yours. We are not a faceless agency; we are a fully registered UK company (No: 12676001) with a deep understanding of local housing stock. From 1930s semi-detached homes to intricate period properties in central Westminster, we have seen and solved it all.We never use unknown subcontractors. Every roofer working on your property is a direct, fully insured employee covered by our comprehensive public liability insurance. This guarantees consistent, high-quality workmanship and professional conduct from start to finish. We take pride in delivering an honest, reliable service that puts the customer first.

Why Choose Kevington Roofing and Building LTD?

Your trusted, fully insured roofing experts. We deliver exceptional leadwork, flashing repairs, and roofing services across Orpington, Swanley, Sevenoaks, and South East London.

Local Kent & South London Experts

Based in Orpington, we serve a 20-mile radius including Swanley, Sevenoaks, and Bromley. We understand local housing stock and conservation requirements for specialist leadwork.

25 Years of Expertise

With over 25 years of hands-on industry experience, our fully directly employed team (no unknown subcontractors) ensures your roof flashing and leadwork are installed flawlessly.

Fully Insured & Registered

We are a Registered UK Company (No: 12676001) with comprehensive public liability insurance, providing total peace of mind for every chimney or valley repair.

Transparent, Itemised Quotes

We believe in honesty. Enjoy free, no-obligation, fully itemised quotes so you know exactly what your lead flashing or roof repair will cost before we start.

Kevington Roofing and Building LTD van parked at a residential property with roof scaffolding

Frequently Asked Questions About Lead Flashing

How long does lead flashing typically last?When installed by qualified professionals using the correct code of lead and traditional expansion techniques, lead flashing can last between 60 and 100 years. It is one of the most durable materials available for roofing.Why is my chimney leaking?Chimney leaks are most commonly caused by failed step flashing or deteriorated mortar. Over the years, the lead can pull away from the brickwork if it wasn't wedged and pointed deeply enough. We can easily re-bed the lead and repoint the chimney to stop the water ingress.Do you handle emergency roof repairs?Yes. If a severe storm has dislodged your flashing and water is pouring in, our emergency repair team is on hand. Call us on 01689 663319 for a fast response to secure your property and prevent further internal damage.

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Roofing Services Across Croydon & South London: 01689 663319

Leadwork And Flashing in City Of Westminster And Surrounding Areas

We Cover All of Westminster

What Our Clients Say About Kevington Roofing and Building LTD

"Fantastic service from the team at Kevington Roofing and Building today. They were recommended by a friend and I was very impressed. I’ll be using them again."

Celia Bennett

"Reliable and prompt - the Kevington team was able to view the property and provide options and transparent, itemised quotes on the same day I called. After deciding what level of work I wanted done, they returned soon after to carry out the roof repairs to a high standard without me even needing to be there."

Philip Day

"Highly recommended! Great price! First class job. Nothing was too much for these lads, very polite, got the job done and more. When they had finished they cleaned up that well, even took some of my own rubbish away for me. Well done lads! Not often you get a good, honest local roofer anymore! Thanks again."

Nick Mangnall

Leadwork & Flashing FAQs

Frequently Asked Questions

Answers to common questions about our specialist leadwork, chimney flashing, and roof repair services from the experts at Kevington Roofing and Building LTD across Swanley, Sevenoaks, Kent, and Croydon & South London.

How do I know if my chimney flashing needs repairing?

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The most common sign is water staining on the ceiling or walls around your chimney breast. You might also see visible gaps where the metal has pulled away from the brickwork, or find small pieces of mortar on the ground that have fallen from the flashing joints. If you are unsure, we can perform a quick drone survey to check the condition safely.

Can’t I just use bitumen tape to fix a leaking lead valley?

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Flash-band or bitumen tapes are only temporary patches. They struggle with the expansion and contraction of the roof and usually fail within a few months. For a permanent fix in the Swanley area, we always recommend replacing the failed section with new, correctly weighted lead that is properly bossed and fixed.

How long does it take to replace lead flashing on a standard house?

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Most flashing repairs, such as around a single chimney stack or a porch, can be completed within a single day. Larger projects, like replacing long lead valleys or installing a lead flat roof, may take two to three days. We always aim to keep your home watertight throughout the entire process.

Is lead theft a problem in Kent and how can you prevent it?

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While lead theft can happen, we can use specific fixing methods and high-quality adhesives to make it much harder to remove. For high-risk areas, we can also discuss modern "lead-alternative" products that have no scrap value but offer similar waterproofing performance, though traditional lead remains the gold standard for longevity.

Still have questions? Contact our Croydon & South London Roofing experts today!

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Proudly Serving Orpington, Bromley, Kent & South East London

Kevington Roofing and Building LTD are your trusted local roofing experts, bringing over 25 years of hands-on experience to properties across South East London and Kent. Based in Orpington, we cover a 20-mile radius, providing fully insured, compliant, and reliable roofing solutions. Explore our primary service areas below.

Our Key Service Areas

Bromley & Bexley

  • Bromley: Orpington, Beckenham, Chislehurst, West Wickham, Biggin Hill
  • Bexley: Bexleyheath, Sidcup, Welling, Erith, Crayford
  • Emergency roof repairs across both boroughs

Kent, Croydon & Beyond

  • Kent: Sevenoaks, Dartford, Westerham, Swanley, Longfield
  • Croydon: Purley, Coulsdon, Sanderstead
  • Greenwich & Lewisham: Eltham, Blackheath, Catford
  • Covering a 20-mile radius from Orpington

Your Trusted Local Experts

  • Expertise with 1930s semis & Victorian terraces
  • Compliant with UK building control & local rules
  • Directly employed staff—no unknown subcontractors
  • Over 25 years of proven industry experience

Need Roofing Services?

Contact Kevington Roofing and Building LTD today for a transparent, no-obligation quote or fast response call-out across Kent and South London.

Call Us Today

If your specific location in South East London or Kent isn't listed, please don't hesitate to get in touch! We cover a wide 20-mile radius from our Orpington base.

Our South East London & Kent Coverage

Map shows our primary service areas across Orpington, Bromley, Kent, and South London.

Get Your Free Leadwork & Flashing Quote Today!
Call Croydon & South London's Trusted Roofing Specialists on 01689 663319