COLORBOND® & ZINCALUME® Downpipes – Strong, Reliable Water Flow
Downpipes are an essential part of every roofing and guttering system. They carry rainwater from your gutters down to the stormwater outlet, protecting walls, foundations, and landscaping from overflow or erosion. At Metal Roofing Online, we supply high-quality COLORBOND® and ZINCALUME® downpipes that match your roof and gutter profile perfectly — ensuring smooth, watertight performance and a professional finish.
Why Choose Our Downpipes?
- Made from genuine BlueScope® Steel for long-term corrosion resistance.
- Available in popular COLORBOND® colours to match your roof and guttering.
- Precision-rolled for smooth water flow and a clean, professional appearance.
- Compatible with downpipe brackets, offsets, and accessories.
Backed by up to 20 years BlueScope® corrosion warranty, each downpipe is precision-made in Australia and fully compliant with AS/NZS 3500.3 Roof Drainage Standards. This ensures a watertight fit and reliable performance for both residential and commercial projects.
Material Options
| Material |
Finish |
Applications |
| COLORBOND® Steel |
Pre-painted, UV-resistant coating |
Residential & commercial roofs |
| ZINCALUME® Steel |
Metallic finish for modern designs |
Coastal and high-rainfall areas |
Environmentally responsible choice: COLORBOND® steel is 100 % recyclable and made with recycled content, offering a lower environmental footprint than PVC. Choosing steel downpipes means less plastic waste and decades of durability.
Sizing & Installation
Available in 100 × 75 mm rectangular, 90 mm round, and more. Choose matching COLORBOND® quad gutters for a uniform look. Matching Accessories
- Downpipe brackets and downpipe pops
- Roof sealants and rivets for long-lasting installation
Fast, Reliable Delivery
Local Focus: With dispatch hubs in Sydney, Brisbane, Victoria and Tasmania. Average delivery: 5-10 business days.
Trade and homeowner orders welcome.
Complete Your Rainwater System
For a watertight finish that connects seamlessly with your downpipes and gutters, explore our full range of custom COLORBOND® flashings and matching gutters. Each flashing is made from genuine BlueScope® .55 BMT steel and designed for long-lasting weather protection across all COLORBOND® roof profiles.
Frequently Asked Questions
Are COLORBOND® downpipes better than PVC?
Yes – COLORBOND® downpipes are stronger, UV resistant, and have a much longer lifespan than plastic PVC pipes.
What sizes do COLORBOND® downpipes come in?
Standard sizes include 90 mm round, 100 × 75 mm rectangular, and 100 × 50 mm square and more.
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