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125MM (5 INCH) Chimney Flue and Accessories - Buy Online | National Flues

Explore our comprehensive selection of 125mm (5 inch) chimney flue products at National Flues. From TWPro adaptors to pipes, bends, tees, supports, and accessories, we offer top-quality solutions to suit your chimney installation needs. Whether you're a professional installer or a DIY enthusiast, our 125mm range provides durable and reliable components to ensure efficient venting of flue gases from your fireplace or stove. Trust National Flues for premium chimney flue solutions in the UK.

 

MI-FlexMI-Flex
Chimney FlueChimney Flue
Connecting PipesConnecting Pipes
Fans Flashings CowlsFans Flashings Cowls
Installation PartsInstallation Parts
After Care PartsAfter Care Parts
StovesStoves
FireplacesFireplaces
Adaptors
Adaptors
Accessories
Accessories
Pipes
Pipes
Starter Pipes
Starter Pipes
Bends & Tees
Bends & Tees
Supports
Supports
Fire Stops
Fire Stops
Flashings
Flashings
Terminals
Terminals
Finishing Plates
Finishing Plates
MI-Flash - No 1.5 Tile Black EPDM (125-225mm) LD-705x501
SKU: 12-15-LD-TILE

MI-Flash - No 1.5 Tile Black EPDM (125-225mm) LD-705x501

£76.49 incl VAT

MI-Flash - No 1.5 Tile Grey SILICONE (125-225mm) LD-705x501
SKU: 12-15-LD-TILEHT

MI-Flash - No 1.5 Tile Grey SILICONE (125-225mm) LD-705x501

£94.99 incl VAT

MI-Flash - No 1.5 Tile Black EPDM (125-225mm) AL-705x501
SKU: 12-15-TILE

MI-Flash - No 1.5 Tile Black EPDM (125-225mm) AL-705x501

£21.99 incl VAT

MI-Flash - No 6 Metal Grey SILICONE 127-230mm 304x304
SKU: 12-6HT

MI-Flash - No 6 Metal Grey SILICONE 127-230mm 304x304

£23.99 incl VAT

MI-Flash - No 6 Metal Black EPDM 127-230mm 304x304
SKU: 12-6LT

MI-Flash - No 6 Metal Black EPDM 127-230mm 304x304

£15.49 incl VAT

Loft Mesh Kit (125mm)
SKU: 13-MESHKIT-125

Loft Mesh Kit (125mm)

£103.99 incl VAT

Draught Stabiliser - Ø  125
SKU: 15-125-007

Draught Stabiliser - Ø 125

£307.99 incl VAT

Wall Support 50mm-80mm - Ø  125
SKU: 15-125-051

Wall Support 50mm-80mm - Ø 125

£19.49 incl VAT

Wall Support 80mm-130mm - Ø  125
SKU: 15-125-052

Wall Support 80mm-130mm - Ø 125

£51.49 incl VAT

Wall Support 130mm-210mm - Ø  125
SKU: 15-125-053

Wall Support 130mm-210mm - Ø 125

£55.99 incl VAT

Wall Support 210mm-420mm - Ø  125
SKU: 15-125-055

Wall Support 210mm-420mm - Ø 125

£66.49 incl VAT

Wall Support Corner 270-520mm - Ø  125
SKU: 15-125-056

Wall Support Corner 270-520mm - Ø 125

£75.49 incl VAT

Long Roof Support - Ø  125
SKU: 15-125-066

Long Roof Support - Ø 125

£24.99 incl VAT

Roof Support - Ø  125
SKU: 15-125-067

Roof Support - Ø 125

£22.49 incl VAT

Joist Support - Ø  125
SKU: 15-125-068

Joist Support - Ø 125

£22.49 incl VAT

Guy Wire Bracket - Ø  125
SKU: 15-125-069

Guy Wire Bracket - Ø 125

£11.49 incl VAT

Firestop Cover Plate (WHITE) - Ø  125
SKU: 15-125-075

Firestop Cover Plate (WHITE) - Ø 125

£31.49 incl VAT

Lead Free Flashing 0° to 20°, S/S Cone , Black Base - Ø 175 OD (125mm ID)
SKU: 15-125-080

Lead Free Flashing 0° to 20°, S/S Cone , Black Base - Ø 175 OD (125mm ID)

£148.49 incl VAT

Lead Free Flashing 20° to 45°, S/S Cone, Black Base  - Ø 175 OD (125mm ID)
SKU: 15-125-081

Lead Free Flashing 20° to 45°, S/S Cone, Black Base - Ø 175 OD (125mm ID)

£148.49 incl VAT

Storm Collar - Ø  125
SKU: 15-125-082

Storm Collar - Ø 125

£19.49 incl VAT

Your Questions Answered

What is the importance of a chimney flue? -

A chimney flue plays a vital role in safely directing smoke and combustion byproducts out of your property. It helps prevent the accumulation of harmful gases and ensures efficient venting of emissions.

Are the 125mm chimney flue products compatible with all chimney systems? +

How do I determine the correct size of chimney flue components I need? +

Can I install the chimney flue products myself? +

Do I need additional accessories for my chimney flue system? +

Are the chimney flue products resistant to high temperatures? +

What is the recommended maintenance for chimney flue components? +

When it comes to installing or upgrading your fireplace or stove, having the right chimney flue components is essential for optimal performance and safety. At National Flues, our 125mm (5 inch) category offers a diverse range of products to cater to various installation requirements. From flex to twin wall adaptors to fire stops and flashings, we have everything you need to complete your chimney system with ease. Our products are designed to meet industry standards, providing you with peace of mind knowing that your flue system is built to last. Browse our 125mm range today and enhance the efficiency of your chimney installation.
Why Buy These Products
The 125mm (5 inch) chimney flue products available at National Flues are versatile and suitable for a wide range of applications. Whether you're working on a residential fireplace, a commercial stove, or an industrial heating unit, our TWPro adaptors, pipes, bends, tees, and accessories offer flexibility and reliability. These components are designed to provide seamless connections, efficient airflow, and dependable support for your chimney system. By choosing our 125mm range, you can ensure proper ventilation, improved draft, and enhanced safety for your property. Trust National Flues for all your chimney flue needs in the UK.

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Experience our unparalleled customer service and support. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.