Aluminium downpipes

Precision-engineered aluminium downpipes available in a variety of powder coated finishes to meet your exact requirements.

Supplying Made-To-Measure
Aluminium Downpipes


Round Downpipe


Round Smoothline Downpipe


Rectangular Downpipe


Rectangular Smoothline Downpipe


Square Downpipe


Square Smoothline Downpipe

meet HJA’s Aluminium Downpipes 

We offer a comprehensive list of aluminium downpipe products, available in both traditional and contemporary finishes.

Select from either standard or smoothline alternatives, HJA aluminium downpipes have been manufactured using modern aluminium casing techniques, factory finished to a high standard. 

Why aluminium is the perfect material for your Downpipes

Aluminium has quickly become one of the most popular materials for downpipes and guttering. It is lightweight, naturally resistant to corrosion and 100% recyclable.

Our manufacturing process consists of marine grade aluminium sheet, extrusions and cast aluminium. These materials are then folded, pressed, fabricated, welded, formed and then extruded to create the downpipes and fixings.


The choice is yours. There’s no need to compromise.

HJA’s downpipes are available in a wide range of RAL powder coating options, as well as BS colours and heritage textured finishes.

Bare mill aluminium finishes are also available for those seeking a more industrial aesthetic.


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What our customers say

HJA Fabrications | The ultimate specification guide to aluminium coping systems

Download your free Specification guide for Aluminium Coping Systems