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 Repairs in Dartford


Call Your Local Dartford Expert
01689 663319
Serving Dartford & Kent

How Our Lead Flashing Installation Process Works

We believe in full transparency, which is why we guide you through every step of our lead repairs and installation process. Here is how we ensure a flawless, long-lasting finish for your roof:Initial Inspection: We conduct a thorough visual or drone roof survey to assess the condition of your existing lead valleys, step flashing, and apron flashing.Transparent Quotation: You will receive a fully itemised, no-obligation quote detailing the required work, with no hidden costs.Safe Preparation: Our team carefully removes any damaged leadwork or deteriorated mortar, ensuring the surrounding brickwork and tiles remain secure.Expert Lead Welding: We cut, shape, and weld premium British Standard lead on-site, applying traditional lead dressing techniques to create a precise, watertight seal.From minor lead repairs to complex dormer cheek installations, our process is designed to cause minimal disruption to your daily life while delivering maximum protection for your home.

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?

The Benefits of Professional Roof Flashing

Investing in professional leadwork is one of the smartest ways to protect your property's structural integrity. Poorly installed or aged flashing is a notorious weak point on any roof, but high-quality Dartford roofing solutions provide immediate and long-term advantages.Unmatched Durability: When installed correctly using proper expansion joints, lead can last for over 50 years, easily outperforming synthetic alternatives.Complete Weatherproofing: Precision lead dressing around complex areas, such as chimney stacks and roof valleys, creates an impenetrable barrier against heavy rain and driving winds.Flexibility: Lead naturally expands and contracts with changing temperatures, preventing cracks and splits that cause leaks.Enhanced Kerb Appeal: Neat, professionally finished step and apron flashings add a clean, traditional aesthetic, particularly beneficial for period properties.Do not wait for a minor drip to become a major structural issue. Request a free quote to secure your roof today.

Safe, Compliant and Guaranteed Craftsmanship

Navigating UK building regulations and local conservation area rules can be a headache for homeowners. At Kevington Roofing and Building LTD, we take the stress out of the process. We understand the specific architectural requirements of Dartford's diverse housing stock, from modern builds requiring updated roof flashing to older properties needing sympathetic, compliant leadwork restoration.As a Registered UK Company (No: 12676001), we take immense pride in our accountability and professionalism. We are fully insured with comprehensive public liability cover and never rely on unknown subcontractors. Every member of our team is directly employed, bringing verifiable expertise to your doorstep. When you choose us for your Kent lead work, you are partnering with a compliant, trustworthy local expert dedicated to the highest standards of safety and quality.

Trusted Lead Roofing Specialists Across Kent

While we handle extensive leadwork and flashing projects in Dartford, our services span a 20-mile radius across South East London and Kent. We frequently assist homeowners and businesses in Longfield, New Ash Green, Hartley, Wilmington, and Hextable, providing consistent, high-quality results across the region.Whether you require emergency lead repairs following a heavy winter storm, or routine maintenance to clear and repair lead valleys during the autumn, our rapid-response team is ready to help. Our 25 years of experience means we have tackled every type of roofing issue imaginable, earning a reputation as reliable, skilled, and honest tradespeople.Secure your property today. Call our emergency repair team or book a consultation on 01689 663319.

Frequently Asked Questions About Roof Leadwork

What are the signs my chimney flashing needs replacing?The most common signs include damp patches on your interior chimney breast, water stains on upstairs ceilings, or visible cracks and slipped lead when looking up at the roof. If you notice any of these, we recommend booking a roof leak detection survey immediately to prevent further internal damage.Can you repair lead flashing, or does it always need replacing?It depends on the extent of the damage. Minor splits can sometimes be resolved with expert lead welding. However, if the lead is severely degraded, thin, or poorly installed, a complete replacement using appropriate British Standard lead codes is the safest and most cost-effective long-term solution.Why is lead still used on modern roofs?Despite advances in roofing materials, lead remains the gold standard for sealing roof junctions. Its malleability allows it to be dressed perfectly over complex tile profiles, and its natural weight prevents it from lifting in high winds.

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

Explore Our Related Roofing Services

Beyond specialist leadwork and flashing, Kevington Roofing and Building LTD provides a comprehensive suite of services to keep your property in peak condition. If you are updating your roofline or suspect wider issues, we recommend exploring our other core services:Chimney Repointing Services - Protect your chimney stack from frost damage and structural failure alongside your new flashing.Drone Roof Surveys - Get a crystal-clear, high-definition assessment of your entire roof, including hard-to-reach lead valleys.Emergency Roof Repairs - Fast, reliable call-outs for sudden leaks, storm damage, and slipped slates across Dartford and Kent.Ready to get started? Contact our helpful team today to discuss your roofing needs and receive your transparent, itemised quotation.

Call Now for a Free Quote

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