Flue Flashing
Finding the right weather seal is important in a flue installation, and we make it simple by stocking a wide range of flashing solutions tailored to different roof types and pipe sizes. Whether you are working with pitched or flat roofs, our selection includes everything from high-performance V-Seal aluminium and silicone flashing to specialised ICID Plus kits.
With vast stock levels ready for immediate dispatch, we provide the parts you need to get the job done right the first time. Browse our current stock below to find the right flashing, storm collars, and fixing kits for your project.
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Explore A Wide Range Of Flue Flashing
To ensure a precise fit, we have categorised our flashing solutions by application, making it straightforward to match your flue diameter to the right sealing kit.
VA Series Flashing
Our VA Series includes high-performance V-Seal pitched roof flashing, available in a range of sizes from 50mm to 350mm diameter. These are designed to create a reliable, weatherproof seal on standard pitched roofs.
Flashing Kits
For those working with the ICID Plus system, our flashing kits offer a complete solution for both flat and angled roofs, accommodating pitches from 5° to 45°. Popular options include the ICID Plus Flat Flashing Kit - 125mm and the ICID Plus Angled Flashing Kit 150mm 5° to 45°.
Universal Flashing
If you are looking for a versatile option, our Universal Flashing kit is specifically designed to work with standard 125mm and 150mm flue diameters, helping you handle common system sizes with a single, reliable kit.
Pipe Flashing
Our pipe-flashing selection offers additional sealing options for a range of pipe diameters, providing robust, weather-tested solutions to ensure we have a match for most standard flue installations. Top choices include the V-Seal Pitched Roof Flashing 100-255 dia 600 x 500 and the Aluminium Flashing V-Seal 100 - 225 dia. 500 x 600.
Storm Collars
A storm collar is essential for directing water away from the flashing joint. These components are vital for preventing water ingress and for keeping the flashing seal protected from the elements. Choose from ICID Plus Storm Collar - 150mm Black, ICID Plus Storm Collar - 125mm and ICID Plus Storm Collar - 150mm.
Fixing Kits
To secure your flashing, our fixing kits come complete with high-grade fasteners and sealant. We stock the Fixing kit - 12 fasteners & caps - 80 ml sealant and the Fixing kit - 30 fasteners & caps - 300 ml sealant.
Stainless Steel Clips
For existing installations, we supply a dedicated stainless-steel clip that allows you to secure the seals on older installations without removing or dismantling the flue pipe.
High Temperature Matt Black Paint
To keep your flue system looking professional and protected, we stock high-temperature matt black paint. This is ideal for touching up components to achieve a uniform, clean finish that withstands the system's heat.
How To Choose Flue Flashing
Choosing the right flashing depends on two main factors: your roof’s pitch and the outside diameter of your flue. Always ensure your chosen flashing diameter allows for a snug fit around the pipe and verify that the base size is large enough to cover the required area around the flue exit. If you are installing on a corrugated or profiled roof, ensure the flashing base material is sufficiently malleable to be moulded to the roof’s profile. For high-temperature applications, always check the temperature ratings of the silicone or rubber used to ensure they meet the flue system's operational requirements.
Choose BES For Your Flue Supplies
When you are working on a roof, you need to be 100% confident in the integrity of your seal. That’s why we stock only high-quality, weather-tested components that provide lasting peace of mind. Our team knows these systems inside out, so when you call for advice on a tricky pitched-roof detail or a complex retrofit, you speak to people who understand the technical realities of your project.
We have built our reputation on helping trade professionals avoid the hassle of sourcing hard-to-find components and the frustration of waiting on deliveries. With our next-working-day service and technical support, we can help you keep your installation schedule on track too, and if you need support with a complex setup, you can submit a technical request online or call our team for help.
We also recommend exploring our wider range of Flue Supplies, including cowls, terminal guards, and liners, to ensure you have everything needed to complete your system safely.
Frequently Asked Questions
How do I accurately measure my flue pipe to select the right flashing?
You need to measure the outside diameter of your flue pipe. Most flashing kits and V-Seals are sold based on the diameter range they accommodate (e.g., 100-225mm). Ensure your pipe’s outside diameter falls comfortably within that range to guarantee a secure, weatherproof seal.
What is the difference between silicone and other flashing materials?
Silicone flashing is generally preferred for high-temperature applications, such as solid-fuel flues, because of its superior heat resistance. Aluminium or EPDM flashings are often used for gas or oil flue systems, where temperatures are typically lower and long-term UV resistance is the primary requirement.
Can these flashing kits be used on corrugated or profiled roofs?
Yes. Both our aluminium and V-Seal flashing bases are designed to be malleable. When installing on a profiled roof, you can mould the base of the flashing to fit the contours of the roof sheeting, ensuring a tight seal with the provided sealant and fixings.
Can I get next-working-day delivery on these items?
Yes. All flashing kits, storm collars, and sealants listed are held in stock at our warehouse and are eligible for next-working-day delivery across most of the UK, provided your order is placed before our daily cut-off time.