Aluminium Box Gutter – Union Joiner

The aluminium box gutter union joiner connects two sections of guttering securely, creating a smooth, watertight link that maintains consistent water flow across the roofline.

Built from architectural-grade aluminium, it ensures long-term durability and alignment, preventing leaks and joint separation even in harsh British weather.

This joiner is a key part of the OMS aluminium guttering system, designed for both residential and commercial rainwater management.

With a powder-coated finish available in any RAL colour, it offers both practicality and refined appearance which ideal for modern architecture and traditional builds alike.

Key Features

• 2 mm architectural-grade aluminium – strong, lightweight, and corrosion-resistant
• Union joiner – connects two aluminium box gutter sections securely and seamlessly
• Watertight seal – prevents leaks while maintaining smooth water flow
• Powder-coated finish – available in any RAL colour for a perfect design match
• Low-maintenance – resists corrosion, peeling, and discolouration over time
• Compatible with OMS aluminium gutters and downpipes
• Manufactured in the UK – precision-engineered with fast lead times and reliable quality

Why You’ll Love It

This aluminium box gutter union joiner delivers the strength and stability your guttering system needs.

It ensures every section aligns perfectly while maintaining the smooth, uninterrupted flow essential for effective roof drainage.

Unlike plastic connectors, this metal joiner won’t warp or degrade — it keeps your aluminium guttering system looking sharp and performing flawlessly for decades.
From small home improvements to large commercial projects, it’s the reliable choice for long-lasting, leak-free gutter connections.

What does a union joiner do?
It links two gutter sections together to create a watertight, secure joint.

Can I use it with any aluminium box gutter?
Yes, it’s compatible with all OMS aluminium box gutter profiles.

Can it be colour-matched?
Absolutely – powder coated in any RAL colour for a consistent architectural finish.

Is aluminium better than PVC joiners?
Yes, aluminium offers superior durability, stability, and lifespan.

Is it easy to install?
Yes, it’s lightweight and designed for straightforward, professional installation.

UK-made aluminium box gutter union joiner. Powder coated in any RAL colour for a watertight, durable, and professional roof drainage system.