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125MM (5 INCH) Chimney Flue | Sflue BLACK | National Flues UK

Explore our range of 125MM (5 INCH) Sflue BLACK chimney flue products designed to provide efficient and safe venting for your fireplace. With durable materials and precise construction, these components ensure optimal performance. Whether you need adaptors, pipes, bends, tees, supports, firestops, or accessories, we have you covered. Trust National Flues UK for reliable chimney solutions.
Explore our range of 125MM (5 INCH) Sflue BLACK chimney flue products designed to provide efficient and safe venting for your fireplace. With durable materials and precise construction, these components ensure optimal performance. Whether you need adaptors, pipes, bends, tees, supports, firestops, or accessories, we have you covered. Trust National Flues UK for reliable chimney solutions.


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£1.93 £339.99
Showing 20 of 73 items
TWPro - Roof Support - 127mm Ø

TWPro - Roof Support - 127mm Ø

22-125-067
£78.99 (including VAT)
In stock
TWPro Black - Wall Support 50-80mm - Ø 127

TWPro Black - Wall Support 50-80mm - Ø 127

42-125-053
£25.99 (including VAT)
In stock
TWPro Black - Wall Support 80-130mm - Ø 127

TWPro Black - Wall Support 80-130mm - Ø 127

42-125-055
£79.99 (including VAT)
In stock
TWPro Black - Wall Support 130-210mm - Ø 127

TWPro Black - Wall Support 130-210mm - Ø 127

42-125-056
£87.99 (including VAT)
In stock
TWPro Black - Wall Support 210-420mm - Ø 127

TWPro Black - Wall Support 210-420mm - Ø 127

42-125-057
£104.99 (including VAT)
In stock
TWPro Black - Wall Support Corner 270-520mm - Ø 127

TWPro Black - Wall Support Corner 270-520mm - Ø 127

42-125-058
£100.99 (including VAT)
In stock
TWPro BLK - Roof Brace Kit - Ø  150

TWPro BLK - Roof Brace Kit - Ø 150

55-150-123
£70.99 (including VAT)
In stock
MI-Flash - No 1.5 Tile Black EPDM (125-225mm) LD-705x501

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

12-15-LD-TILE
£79.99 (including VAT)
In stock
MI-Flash - No 1.5 Tile Grey SILICONE (125-225mm) LD-705x501

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

12-15-LD-TILEHT
£98.99 (including VAT)
In stock
MI-Flash - No 1.5 Tile Black EPDM (125-225mm) AL-705x501

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

12-15-TILE
£22.99 (including VAT)
In stock
MI-Flash - No 6 Metal Grey SILICONE 127-230mm 304x304

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

12-6HT
£24.99 (including VAT)
In stock
MI-Flash - No 6 Metal Black EPDM 127-230mm 304x304

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

12-6LT
£15.99 (including VAT)
In stock
Loft Mesh Kit (125mm)

Loft Mesh Kit (125mm)

13-MESHKIT-125
£107.99 (including VAT)
In stock
Loft Shield (Galv 1000mm) - Ø  125

Loft Shield (Galv 1000mm) - Ø 125

15-125-124
£118.99 (including VAT)
In stock
Roof Brace Kit - Ø  150

Roof Brace Kit - Ø 150

15-150-123
£59.99 (including VAT)
In stock
Chimney Notice Plate

Chimney Notice Plate

20-CNP
£1.93 (including VAT)
In stock
Sflue (3119136) - Wall Band Extension 50-100mm

Sflue (3119136) - Wall Band Extension 50-100mm

22-051
£22.99 (including VAT)
In stock
Sflue (7002900) - Universal Roof Support

Sflue (7002900) - Universal Roof Support

22-067
£48.99 (including VAT)
In stock
Sflue (2152705) - Anchor Plate - 127mm Ø

Sflue (2152705) - Anchor Plate - 127mm Ø

22-125-064
£61.99 (including VAT)
In stock
Sflue (2188805) - Decorative Ventilated Firestop - 127mm Ø

Sflue (2188805) - Decorative Ventilated Firestop - 127mm Ø

22-125-075
£268.99 (including VAT)
In stock
Your 125MM (5 INCH) Questions Answered

What is the importance of using the correct chimney flue size? -

Using the correct chimney flue size is crucial for proper ventilation and efficient operation of your fireplace. It helps prevent smoke buildup, improves draft efficiency, and reduces the risk of creosote buildup, chimney fires, and carbon monoxide poisoning.

Can these chimney flue components be used for wood-burning stoves? +

Do I need professional installation for these chimney flue components? +

Are these chimney flue components corrosion-resistant? +

Can I use these components for both indoor and outdoor fireplaces? +

Do these components come with installation instructions? +

Are these chimney flue components compatible with other brands' products? +

When it comes to maintaining a safe and functional fireplace, investing in high-quality chimney flue components is crucial. Our 125MM (5 INCH) Sflue BLACK range offers a variety of products like adaptors, pipes, bends, tees, supports, firestops, and more to cater to your specific needs. Each component is crafted with precision and durability in mind, ensuring long-lasting performance and safety for your fireplace. Explore our selection to find the perfect fit for your chimney system.
Why Buy 125MM (5 INCH) Products
The 125MM (5 INCH) chimney flue components from National Flues UK are designed for both residential and commercial fireplace installations. These versatile products can be used in new construction projects, renovations, or upgrades to existing chimney systems. Whether you are a homeowner, builder, or contractor, our Sflue BLACK range offers reliable solutions to ensure proper ventilation and safety for your fireplace.

Trusted By Trade Professionals

Our 125MM (5 INCH) products and services are trusted by hundreds of professionals nationwide. We're committed to providing quality and reliability that meets the high standards of our customers.

Dedicated Support

Experience our unparalleled customer service and support when you buy 125MM (5 INCH) from National Flues. Our team is here to assist you every step of the way, ensuring your needs are met with expertise and care.

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