Aluminium Box Gutter – 135° External Corner

The aluminium box gutter 135° external corner is precision-engineered to create a smooth, watertight connection where two box gutters meet at an external angle.

Designed for both domestic and commercial rain gutter systems, it provides a clean, professional finish while maintaining the strength and capacity needed for effective roof drainage.

Manufactured in the UK from architectural-grade aluminium, this box gutter corner resists corrosion, distortion, and fading, making it a long-term solution for modern roofline installations.

Compatible with all OMS aluminium gutters and downpipes, it forms part of a complete aluminium rain guttering system that blends durability with design consistency.

Key Features

• Architectural-grade aluminium – lightweight, rigid, and corrosion-resistant
• 135° external corner – creates a precise watertight joint at angled roofline connections
• Box gutter design – supports high-capacity rainwater flow
• Powder-coated finish – available in any RAL colour for seamless system matching
• Compatible with all OMS aluminium gutter and downpipe systems
• Low-maintenance – resists peeling, fading, and discolouration
• Manufactured in the UK – reliable quality with fast lead times

Why You’ll Love It

This 135° external corner is the perfect companion for any aluminium box gutter installation.

It ensures tight, leak-free joints along angled roof edges while keeping the appearance modern and uniform.

Made from premium aluminium and finished in your choice of RAL colour, it complements metal rain gutters, box guttering, and matching fascia systems for a cohesive architectural look.

Ideal for both residential and commercial rain gutters, it’s built for performance, longevity, and effortless style.

What is the purpose of a 135° external box gutter corner?
It connects two box gutter sections at an external angle to maintain continuous water flow and prevent leakage.

Is aluminium better than uPVC for box gutters?
Yes, aluminium is stronger, lasts longer, and won’t warp or fade like uPVC over time.

Can this product be colour matched?
Absolutely, it’s powder coated in any RAL colour to match the rest of your aluminium guttering system.

Is it suitable for commercial buildings?
Yes, this commercial-grade aluminium gutter component is designed for all project types, from homes to industrial sites.

Does it come in other angles or sizes?
Yes, OMS manufactures custom box gutter corners, outlets, and stopends to suit your specification.

UK-made aluminium box gutter 135° external corner. Powder coated in any RAL colour for a durable, watertight, and professional roof drainage system.