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 Roof Flashing Repairs in Gravesend


Call Your Local Gravesend Expert
01689 663319
Serving Gravesend & Kent

How Our Lead Welding and Bossing Process Works

Every effective roof repair starts with a thorough assessment. We frequently utilise advanced drone roof surveys to safely inspect hard-to-reach chimney flashings, dormer details, and lead valleys without needing scaffolding on day one. This allows us to accurately identify split, lifted, or heavily oxidised leadwork before we even climb a ladder.Once the issue is identified, our fully employed and highly trained team gets to work. We do not rely on unknown subcontractors, ensuring that our stringent quality standards are maintained on every job. We carefully remove the damaged materials, clear out any underlying debris, and expertly shape and fit new milled lead to the affected area.Whether we are performing traditional lead bossing to dress the metal around complex corners or conducting the precise lead welding Kent properties rely on for seamless joints, we ensure a perfect, watertight fit. Finally, we point the new step flashings deep into the brickwork mortar joints, guaranteeing a secure seal that will easily stand the test of time.

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?

Why Investing in Quality Roof Flashing Protects Your Home

Investing in professional roof flashing in Gravesham offers far more than just immediate leak prevention. Properly installed leadwork provides long-term security and enhances the overall health of your entire roofing system.Unmatched Longevity: When the correct codes of milled lead are used, your flashings and valleys can easily outlast the concrete or clay roof tiles themselves, often providing reliable weather protection for well over 60 years.Flexibility and Weather Resistance: Lead naturally expands and contracts with seasonal temperature changes. Expert installation allows for this thermal movement, preventing the cracks and splits commonly seen in cheaper, rigid alternatives.Preserved Aesthetic Appeal: Whether you own a classic Victorian terrace in Gravesend or a sleek modern build in Gravesham, neatly dressed leadwork adds a traditional, premium finish to your property's exterior.Reduced Roof Maintenance: High-quality lead valley repair and durable step flashings significantly reduce the need for ongoing patch repairs, saving you money and disruption in the long run.

Meeting UK Building Regulations for Lead Installation

Lead roofing is a highly skilled heritage trade that must adhere to strict UK building regulations. As a responsible, registered UK company (No: 12676001), Kevington Roofing and Building LTD takes local compliance incredibly seriously. We understand the specific planning requirements and conservation area rules that often apply to older housing stock across Kent.Using the correct material thickness is vital for structural safety and durability. We strictly use properly graded codes of milled lead tailored to the specific application. For example, we typically use Code 4 lead for flexible step flashings, whilst opting for thicker Code 5 or Code 6 lead for robust lead valley repair and box gutters. This ensures the material is strong enough to handle heavy rainwater flow without tearing.Furthermore, our team ensures proper roof ventilation and incorporates expansion joints where necessary, completely mitigating the risks of condensation and thermal fatigue. We carry full public liability insurance, giving you total peace of mind that your home is in safe, legally compliant hands.

Local Roofing Specialists Across Gravesham and Kent

While we frequently carry out leadwork repairs in Gravesend, our reach extends far beyond. Based in Orpington, our dedicated team covers a comprehensive 20-mile radius across South East London and Kent, proudly serving our local communities.We provide expert roofing services throughout the Dartford and Sevenoaks districts, regularly working in areas such as Longfield, New Ash Green, Hartley, Swanley, and Wilmington. Whether you need an emergency chimney flashing repair following a harsh winter storm in Dartford or a complete lead valley replacement in Bexleyheath, our local experts are ready to step in.Our deep understanding of local housing types—from 1930s semi-detached homes in Sidcup to period rural properties in Westerham—means we arrive equipped with the right tools, materials, and local knowledge to restore your roof promptly and sympathetically.

Trusted Expertise with Kevington Roofing and Building LTD

Finding a reliable roofing contractor can feel daunting, but Kevington Roofing and Building LTD is built on a solid foundation of trust, transparency, and superior craftsmanship. With a quarter of a century of hands-on experience, we have built an outstanding reputation as the go-to roofing experts in the region.We believe in honest communication from start to finish. When you book a roof inspection with us, we provide fully transparent, itemised quotes so you know exactly what you are paying for—with no hidden fees or sudden surprises. Because we directly employ our staff, we maintain strict quality control over every single lead welding and flashing project.If you suspect your roof flashing has failed or you want to schedule preventative roof maintenance before autumn arrives, do not wait for water to damage your ceilings. Book a site survey today or call our friendly, knowledgeable team directly on 01689 663319.

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 Valleys and Flashings

How long does roof leadwork typically last?When installed correctly by skilled professionals using the right codes of milled lead, lead flashings and valleys can last anywhere from 50 to 100 years. It remains one of the most durable and reliable roofing materials available in the UK.What are the signs that my chimney flashing needs replacing?Common indicators of failing chimney flashing include damp patches appearing on your interior chimney breast, water pooling in your loft space after heavy rain, missing mortar around the stepped lead, or visibly lifted, split, and brittle lead sheets on the roof exterior.Can a split lead valley be repaired, or does it need replacing?In some specific cases, minor splits can be effectively repaired using specialised lead welding techniques. However, if the lead valley is heavily oxidised, highly brittle, or suffering from widespread thermal fatigue due to old age, a complete replacement using thicker Code 5 lead is often the most cost-effective and secure long-term solution.

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Roofing Services Across Croydon & South London: 01689 663319

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