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Square Cast Aluminium Downpipe

Square cast aluminium downpipes combine traditional aesthetics with the performance benefits of aluminium, providing a reliable and low-maintenance alternative to cast iron. Designed to complement a wide range of rooflines, these downpipes are particularly suited to heritage restorations, conservation projects, and high-quality new builds where architectural style is a key consideration.

Part of the Alumasc Heritage range, this classic socketed aluminium square downpipe system can be finished to replicate traditional cast iron or coated with BBA-certified powder coatings in a variety of colours. The result is a durable, corrosion-resistant downpipe system that retains a period-appropriate appearance while providing long-term performance.

Available in diameters from 63mm to 150mm, these square aluminium downpipes accommodate a range of rainwater capacities. Supplied in 1m, 2m, and 3m lengths, they offer flexibility for properties of all sizes and roof heights, enabling a seamless installation tailored to your project’s requirements.

Ideal Applications

Square cast aluminium downpipes are versatile and suitable for a variety of property types, including:

Listed and conservation properties

Period restorations and heritage buildings

High-end residential and commercial projects

Properties requiring durable, low-maintenance rainwater systems

Their traditional square profile adds a distinctive architectural detail, making them a popular choice for both heritage and modern developments.

Why Choose Square Cast Aluminium Downpipes?

Authentic Cast Iron Appearance – Perfect for heritage and listed properties.

Durable & Lightweight – Easier to handle and install compared to traditional cast iron.

Corrosion-Resistant Aluminium – Long-lasting performance with minimal maintenance.

Customisable Finishes – Choose from powder-coated colours or cast iron effect.

Low Maintenance – Retains appearance and functionality for decades.

Order Your Square Cast Aluminium Downpipes

Enhance your rainwater management system with square cast aluminium downpipes from the Alumasc Heritage range. Combining traditional charm with modern durability, these downpipes are ideal for both restoration and new-build projects.

Browse our full range online or contact the Gutter Centre team for expert guidance, bespoke colour options, and technical support for your project.

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Product Guide 192.81k downloads
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