Alumasc Cast Aluminium Rectangular Downpipes

Rectangular pipes sit flat against the wall and suit Georgian or early Victorian façades where you want a clean, low-profile appearance.

Roughly equivalent, though circular pipes of similar cross-section handle flow slightly better. Always check Alumasc’s flow data when sizing.

They need more precise bracket alignment, as any wall irregularities show up in the straight edges. Take time to plumb and shim brackets if needed.

Usually eared sockets fixed directly to the wall, or adjustable stand-off brackets if the wall surface is uneven or insulated.

Yes, transition adaptors are available for neat connections between differing profiles.

The powder coating is tough, but protect edges on scaffolds and trestles. If minor chips occur, touch up before final installation.

Yes, they’re less prone to twisting, which is useful on long, exposed runs or windy elevations.

Heritage black is classic, but mid-greys and stone colours blend beautifully with brick and render. The flat surface shows off colour better than round sections.