
Leadwork & Flashing Services
Lead flashing, valleys, dormers and chimney leadwork across Kent, Sussex and Surrey.
About Our Leadwork & Flashing Services
Lead is the gold standard for waterproofing the junctions, valleys and abutments on a roof. Where tiles meet walls, where roof slopes converge in valleys and where chimneys penetrate the roof surface, properly dressed lead flashing provides a reliable, long-lasting seal that no other material matches. When lead flashings fail — through cracking, lifting or corrosion — water finds its way into the roof structure and can cause significant damage before the leak becomes visible inside the property.
Radiant Roofing provides expert leadwork services across the South East, from straightforward flashing repairs and replacements to new lead valleys, dormer cheeks, flat roof coverings and bespoke detailing. Our roofers are skilled lead workers who dress, weld and fit sheet lead to the highest standards, ensuring every joint is watertight and every detail is correct.
If you have noticed water staining around chimney breasts, damp patches where a roof meets a wall or visible lifting of lead flashings, get in touch for a free inspection. Lead repairs caught early are straightforward and affordable — left too long, they become major roof repair projects.

Our Leadwork & Flashing Services

Chimney Flashing
Back gutter, step and apron flashings around chimneys renewed or replaced. We chase into the brickwork, dress the lead to the correct profile and point with a durable sealant.
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Lead Valleys
Lead-lined valleys between roof slopes renewed or repaired. Correctly formed lead valleys channel water reliably and last 50 years or more with minimal maintenance.
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Lead Dormers & Flat Roofs
Dormer cheeks, flat roofs and bay tops covered in sheet lead. We weld joints, form drips and dress edges to create a seamless waterproof covering with a traditional finish.
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Step & Wall Flashing
Lead step flashings where pitched roofs meet walls, and cover flashings on wall abutments. We ensure correct overlap and chase depth for a lasting, watertight seal.
Learn more →Why Choose Radiant Roofing?
Skilled Lead Workers
Leadwork is a specialist trade. Our roofers are experienced lead workers who understand how to dress, boss, weld and form sheet lead correctly. Properly worked lead lasts 50 to 100 years — poorly fitted lead fails within a few years.
Code 4 & Code 5 Lead
We use the correct weight of lead for every application — Code 4 for flashings and Code 5 for valleys and flat areas. Using the wrong code leads to premature cracking or sagging, and we never cut corners on specification.
Accredited & Insured
Radiant Roofing is Checkatrade verified, a Guild of Master Craftsmen member and fully insured. Our leadwork is consistently praised by customers for its quality and longevity.
Lasting Results
Lead is one of the most durable roofing materials available. When installed correctly, it far outlasts modern alternatives. We back all leadwork with our written workmanship guarantee for complete peace of mind.
Our Leadwork & Flashing Work
What Our Customers Say
Verified Google ReviewsJane S.
Kent
They were very friendly, professional and polite and left the site immaculate at the end of the day. I would thoroughly recommend them to others. The work was carried out to a very high standard.
Peter B.
East Sussex
Excellent work, highly recommended! Very knowledgeable, by far the best roofing company we have ever used and super nice guys.
Sarah M.
Surrey
Radiant Roofing completed our roof repair quickly and professionally. Great communication throughout and a fantastic result.
Frequently Asked Questions
The cost depends on the type and length of flashing, the accessibility of the area and whether scaffolding is needed. A chimney re-flash typically costs between £350 and £800. Lead valley replacements and dormer leadwork cost more due to the greater area and complexity involved. We provide free, written quotations so you know exactly what to expect.
Properly installed lead flashing using the correct code weight typically lasts between 50 and 100 years. Lead is one of the most durable waterproofing materials available, which is why it remains the industry standard for critical roof junctions despite the availability of cheaper alternatives.
Common signs include visible lifting or separation of the lead from the wall, cracking or splitting in the lead sheet, water staining on internal walls near chimneys or wall abutments, and damp patches appearing after rain. If you can see daylight under a flashing edge or the lead has become brittle, it is time to act.
It depends on the extent of the damage. Minor issues such as a lifted edge or a small crack can often be repaired by re-dressing or patching. However, if the lead has become heavily corroded, has multiple cracks or is the wrong code weight, a full replacement is the more cost-effective long-term solution. We will always give you an honest assessment.
We cover the whole of Kent, Sussex and Surrey, including Tunbridge Wells, Sevenoaks, Tonbridge, Maidstone, Crawley, East Grinstead, Haywards Heath, Reigate and the surrounding areas. If you are unsure whether we cover your location, give us a call and we will be happy to confirm.
Ready to Get Started?
Whether it's a repair, replacement, or a brand new roof — get in touch today for a free, no-obligation quote.
Contact Us!
Get in touch with us!
Looking for a free quote? Just fill in the form below, and we'll take care of the rest!
Contact Information:
Mobile (24/7): 07753 165 005
Landline (Office Hours): 01892 356 967
Email: contact@radiantroofing.co.uk
Head Office:
Address:
Alpha House
Crowborough Hill
Crowborough
TN6 2EG
Opening Hours:
Monday to Friday: 7:30 am – 6:00 pm
Saturday: 7:30 am – 12:00 pm
Sunday: Closed (mobile still available)
Our Mobile and Email is available 24/7