Alumasc Cast Aluminium Circular Downpipes

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Without Ears

£46.02 - £543.22

£46.02

£32.36 - £381.95

£32.36 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£46.02 - £543.22

£46.02

£32.36 - £381.95

£32.36 ex VAT

Save up to £161.27

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Alumasc Heritage - Round Circular Cast Aluminium Socket Without Ears

£16.85 - £120.75

£16.85

£11.85 - £84.90

£11.85 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£16.85 - £120.75

£16.85

£11.85 - £84.90

£11.85 ex VAT

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Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Standard

£9.81 - £43.69

£9.81

£6.90 - £30.72

£6.90 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£9.81 - £43.69

£9.81

£6.90 - £30.72

£6.90 ex VAT

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Alumasc Heritage - Round Cast Aluminium Socketed 112.5 degree Offset Without Ears

£48.74 - £422.86

£48.74

£34.27 - £297.32

£34.27 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£48.74 - £422.86

£48.74

£34.27 - £297.32

£34.27 ex VAT

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Alumasc Heritage Round Cast Aluminium Woodford Rainwater Head

£469.55 - £512.36

£469.55

£330.15 - £360.25

£330.15 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£469.55 - £512.36

£469.55

£330.15 - £360.25

£330.15 ex VAT

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Alumasc Heritage Round Cast Aluminium Lydiard Rainwater Head

£153.81 - £180.96

£153.81

£108.15 - £127.24

£108.15 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£153.81 - £180.96

£153.81

£108.15 - £127.24

£108.15 ex VAT

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Alumasc Heritage Round Cast Aluminium Latimer Rainwater Head

£370.21 - £435.54

£370.21

£260.30 - £306.24

£260.30 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£370.21 - £435.54

£370.21

£260.30 - £306.24

£260.30 ex VAT

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Alumasc Heritage Round Cast Aluminium Halstead Rainwater Head

£242.21 - £284.96

£242.21

£170.30 - £200.36

£170.30 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£242.21 - £284.96

£242.21

£170.30 - £200.36

£170.30 ex VAT

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Alumasc Heritage Round Cast Aluminium Cranford Rainwater Head

£153.81 - £180.96

£153.81

£108.15 - £127.24

£108.15 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£153.81 - £180.96

£153.81

£108.15 - £127.24

£108.15 ex VAT

Save up to £53.72

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Alumasc Heritage Round Cast Aluminium Chatsworth With Rose Motif Rainwater Head

£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

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Alumasc Heritage Round Cast Aluminium Chatsworth With Numerical Motif Rainwater Head

£999.99

£999.99 - £999.99

£999.99

£703.12 ex VAT

£703.12 - £703.12

£703.12 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£999.99

£999.99 - £999.99

£999.99

£703.12 ex VAT

£703.12 - £703.12

£703.12 ex VAT

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Alumasc Heritage Round Cast Aluminium Chatsworth With Lions Head Motif Rainwater Head

£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

Save up to £68.09

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Alumasc Heritage Round Cast Aluminium Chatsworth With Fleur De Lys Motif Rainwater Head

£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£203.39 - £229.34

£203.39

£143.01 - £161.25

£143.01 ex VAT

Save up to £68.09

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Alumasc Heritage Round Cast Aluminium Chatsworth Rainwater Head

£172.28 - £198.23

£172.28

£121.13 - £139.38

£121.13 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£172.28 - £198.23

£172.28

£121.13 - £139.38

£121.13 ex VAT

Save up to £58.85

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Alumasc Heritage Round Cast Aluminium Berkeley Small Rainwater Head

£86.02 - £101.20

£86.02

£60.48 - £71.16

£60.48 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£86.02 - £101.20

£86.02

£60.48 - £71.16

£60.48 ex VAT

Save up to £30.04

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Alumasc Heritage Round Cast Aluminium Berkeley Small Corner Rainwater Head

£86.02 - £101.20

£86.02

£60.48 - £71.16

£60.48 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£86.02 - £101.20

£86.02

£60.48 - £71.16

£60.48 ex VAT

Save up to £30.04

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Shoe Without Ears

£22.16 - £205.41

£22.16

£15.58 - £144.43

£15.58 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£22.16 - £205.41

£22.16

£15.58 - £144.43

£15.58 ex VAT

Save up to £60.98

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Shoe With Ears

£22.16 - £205.41

£22.16

£15.58 - £144.43

£15.58 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£22.16 - £205.41

£22.16

£15.58 - £144.43

£15.58 ex VAT

Save up to £60.98

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Eared

£46.02 - £543.22

£46.02

£32.36 - £381.95

£32.36 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£46.02 - £543.22

£46.02

£32.36 - £381.95

£32.36 ex VAT

Save up to £161.27

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Bend No Ears

£25.32 - £215.90

£25.32

£17.80 - £151.80

£17.80 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£25.32 - £215.90

£25.32

£17.80 - £151.80

£17.80 ex VAT

Save up to £64.10

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Access Pipe Without Ears

£84.46 - £310.50

£84.46

£59.39 - £218.32

£59.39 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£84.46 - £310.50

£84.46

£59.39 - £218.32

£59.39 ex VAT

Save up to £92.18

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Alumasc Heritage - Round Circular Cast Aluminium Socket With Ears

£16.85 - £53.07

£16.85

£11.85 - £37.31

£11.85 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£16.85 - £53.07

£16.85

£11.85 - £37.31

£11.85 ex VAT

Save up to £15.76

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Alumasc Heritage - Round Circular Cast Aluminium Rainwater Head Flat Back

£42.35 - £71.38

£42.35

£29.78 - £50.19

£29.78 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£42.35 - £71.38

£42.35

£29.78 - £50.19

£29.78 ex VAT

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Alumasc Heritage - Round Circular Cast Aluminium Rainwater Diverter

£140.13 - £487.95

£140.13

£98.53 - £343.09

£98.53 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£140.13 - £487.95

£140.13

£98.53 - £343.09

£98.53 ex VAT

Save up to £144.86

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Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Small Base

£13.06 - £20.18

£13.06

£9.18 - £14.19

£9.18 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£13.06 - £20.18

£13.06

£9.18 - £14.19

£9.18 ex VAT

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Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Extension Base

£28.10 - £33.01

£28.10

£19.76 - £23.21

£19.76 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£28.10 - £33.01

£28.10

£19.76 - £23.21

£19.76 ex VAT

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Alumasc Heritage - Round Cast Aluminium Socketed Downpipe Thickwalls With Ears

£181.67 - £353.22

£181.67

£127.74 - £248.36

£127.74 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£181.67 - £353.22

£181.67

£127.74 - £248.36

£127.74 ex VAT

Save up to £104.86

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Alumasc Heritage - Round Cast Aluminium Socketed 112.5 degree 2 Part Offset No Ear

£54.85 - £145.65

£54.85

£38.57 - £102.41

£38.57 ex VAT

Note: /F variations are for connection onto Flushjoint, Swaged or Guardian downpipes. The Alumasc Heritage Circular Cast Aluminium range offers a c...

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£54.85 - £145.65

£54.85

£38.57 - £102.41

£38.57 ex VAT

Save up to £43.24

More about Alumasc Cast Aluminium Circular Downpipes

Cast aluminium circular downpipes provide a traditional visual style with a smooth round profile that suits a wide range of heritage refurbishments and architectural restoration projects. The downpipes are built from durable aluminium which resists rust and weather damage over time while remaining much easier to handle on site compared to cast iron alternatives. They are available in a number of diameters and finishes making it straightforward to specify the correct option to maintain the building’s original character. The circular shape gives reliable water flow and pairs neatly with both half round and other heritage gutter profiles. When installed alongside matching fittings and hoppers from Alumasc they complete a cast style rainwater system that looks authentic and performs dependably.

FAQ

Why are circular downpipes the most popular option?

The shape handles water flow efficiently and fits well with most gutter profiles. It’s also the easiest to align and install on uneven façades.

What sizes are available and how do I choose?

Alumasc circular downpipes typically come in 63mm–150mm diameters. Match the size to the outlet capacity, for most domestic roofs 63–75mm is ideal.

How are circular downpipes joined?

They use traditional socket-and-spigot joints that replicate cast iron. A bead of sealant or EPDM gasket ensures watertightness while allowing expansion.

Do circular pipes suit both heritage and modern designs?

Yes - they’re timeless. Black or dark grey finishes look traditional; lighter colours or bare metal finishes work for contemporary builds.

What’s the best way to ensure straight vertical alignment?

Start with the top bracket, use a plumb line or laser, and dry-fit two or three sections before fixing permanently. Minor deviations are easy to correct because of the round shape.

Are there specific fittings for bends and offsets?

Yes, Alumasc supplies matching offsets, branches, and shoes for each diameter. These make adapting to eaves or projections straightforward.

How do circular downpipes perform on tall elevations?

Excellent. Their internal smoothness maintains consistent flow, and their geometry resists torsion from wind better than rectangular types.

What sealant should I use?

A neutral-cure silicone or the manufacturer’s approved low-modulus sealant. Avoid anything acidic which can damage the coating.

Alumasc Cast Aluminium Circular Downpipes

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Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Without Ears

Alumasc Heritage - Round Circular Cast Aluminium Socket Without Ears

Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Standard

Alumasc Heritage - Round Cast Aluminium Socketed 112.5 degree Offset Without Ears

Alumasc Heritage Round Cast Aluminium Woodford Rainwater Head

Alumasc Heritage Round Cast Aluminium Lydiard Rainwater Head

Alumasc Heritage Round Cast Aluminium Latimer Rainwater Head

Alumasc Heritage Round Cast Aluminium Halstead Rainwater Head

Alumasc Heritage Round Cast Aluminium Cranford Rainwater Head

Alumasc Heritage Round Cast Aluminium Chatsworth With Rose Motif Rainwater Head

Alumasc Heritage Round Cast Aluminium Chatsworth With Numerical Motif Rainwater Head

Alumasc Heritage Round Cast Aluminium Chatsworth With Lions Head Motif Rainwater Head

Alumasc Heritage Round Cast Aluminium Chatsworth With Fleur De Lys Motif Rainwater Head

Alumasc Heritage Round Cast Aluminium Chatsworth Rainwater Head

Alumasc Heritage Round Cast Aluminium Berkeley Small Rainwater Head

Alumasc Heritage Round Cast Aluminium Berkeley Small Corner Rainwater Head

Alumasc Heritage - Round Circular Cast Aluminium Socketed Shoe Without Ears

Alumasc Heritage - Round Circular Cast Aluminium Socketed Shoe With Ears

Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Eared

Alumasc Heritage - Round Circular Cast Aluminium Socketed Downpipe Bend No Ears

Alumasc Heritage - Round Circular Cast Aluminium Socketed Access Pipe Without Ears

Alumasc Heritage - Round Circular Cast Aluminium Socket With Ears

Alumasc Heritage - Round Circular Cast Aluminium Rainwater Head Flat Back

Alumasc Heritage - Round Circular Cast Aluminium Rainwater Diverter

Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Small Base

Alumasc Heritage - Round Circular Cast Aluminium Pipe Clip Extension Base

Alumasc Heritage - Round Cast Aluminium Socketed Downpipe Thickwalls With Ears

Alumasc Heritage - Round Cast Aluminium Socketed 112.5 degree 2 Part Offset No Ear

More about Alumasc Cast Aluminium Circular Downpipes

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