Introduction
Leadwork plays a vital role in protecting your roof from water ingress, especially in areas where different materials or angles meet—think chimneys, valleys, dormers, and parapets. Yet, despite its importance, leadwork is often overlooked until the damage is already done. When lead begins to fail, even small defects can quickly lead to leaks, damp, and structural decay.
At LS Roofing Feltham, we specialise in high-quality leadwork tailored to the architecture and climate of Greater London. In this article, we’ll cover six essential leadwork solutions that every homeowner should be aware of. Whether you own a modern house or a traditional property, investing in proper leadwork isn’t just a protective measure—it’s a cost-saving decision in the long run.
Key Takeaways
- Proper leadwork prevents water penetration and long-term roof damage.
- Common problem areas include chimneys, valleys, and roof joints.
- LS Roofing Feltham delivers expert installation and repairs across Greater London.
- Investing in leadwork now avoids costly repairs and internal damage later.
1. Chimney Flashings
Chimneys are one of the most vulnerable parts of any roof. The flashing—typically made of lead—creates a watertight seal between the chimney and roof surface. Over time, weathering can cause cracks or lifting, allowing water to seep into the roof space.
Professional lead flashing ensures:
- A durable, weather-resistant seal
- Protection against freeze-thaw cycles
- Prevention of leaks around chimney bases
We repair or replace damaged flashings using traditional and modern methods, ensuring long-lasting protection tailored to your roof’s design.
2. Lead Valleys
Roof valleys are critical junctions where two roof slopes meet, directing water safely towards the gutters. Lead is often used in these areas because of its flexibility, durability, and ability to form a seamless channel.
If valley leadwork is cracked or slipping, water can pool or overflow, leading to rotting timbers and ceiling stains. We install and refurbish lead valleys with correct lap detailing and welded joints to provide a watertight finish that lasts decades.
3. Step Flashing Along Walls
Where the roof meets vertical walls—such as at the side of dormers or extensions—step flashing is required to bridge the gap. Properly formed and embedded lead step flashing ensures that water cannot trickle between the wall and roof covering.
We ensure each course of flashing is:
- Embedded securely into brickwork
- Correctly lapped with the roof covering
- Sealed against wind and weather penetration
This attention to detail prevents common sources of damp and thermal inefficiency.
4. Lead Gutter Linings
Traditional properties, especially in areas like Feltham and the surrounding Greater London suburbs, often feature internal box gutters lined with lead. These gutters are prone to leaking when the linings age or crack.
Our team repairs and installs lead linings that:
- Accommodate thermal movement without splitting
- Offer seamless, watertight channels
- Extend the life of historic roof structures
Correctly maintained, lead-lined gutters can last up to 100 years, making them a highly cost-effective solution.
5. Lead Aprons and Cover Flashings
Lead aprons are installed at the base of vertical elements such as skylights, dormers, or parapet walls. Combined with cover flashings, they protect against wind-driven rain and runoff.
Failing aprons or poorly installed flashings often lead to hidden water ingress. Our precision-cut and welded lead sheets provide a strong seal in these vulnerable areas, ensuring water is guided away from internal structures.
6. Expansion Joints and Fixings
One of the most overlooked aspects of leadwork is allowing for expansion and contraction. Without properly installed expansion joints, even the best leadwork can crack or split due to thermal movement.
At LS Roofing Feltham, we install leadwork with:
- Adequate laps and drips
- Rolled joints for movement tolerance
- Secure fixings that prevent sagging
This ensures long-term stability and keeps the leadwork functioning as intended, even under extreme weather fluctuations.
Conclusion
Leadwork is one of the most crucial, yet underappreciated, elements of a watertight roofing system. When properly designed and installed, it protects your home from the worst of the British weather, especially in complex roof areas like valleys, chimneys, and box gutters. Neglecting it can lead to costly damage—not just to your roof, but also to the interior structure of your home.
At LS Roofing Feltham, we bring years of hands-on experience in Greater London to every leadwork project we undertake. Whether you need a small repair or a full installation, our leadwork solutions are built to protect your home for decades to come. Reach out today to schedule a consultation and keep your roof—and your investment—safe.
Call us on: 020 4572 0290
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