Cast Iron Guttering

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Alumasc Apex 100mm (4") x 1.83m Cast Iron Downpipe with Ears - Black

Heritage Cast Iron Rainwater Systems

Some materials suit older buildings properly. Cast iron is one of them.

You can spot the difference straight away. The depth of the profiles. The weight of the brackets. The sharper detailing around hopper heads and downpipes. Plastic systems try to imitate it, but on period homes and heritage projects, they rarely sit quite right.

At Cast Iron Warehouse, we supply complete Apex Heritage cast iron rainwater systems built for projects where appearance matters as much as long-term performance. From Victorian ogee guttering and moulded profiles through to plain half round gutters, rectangular downpipes, and traditional hopper heads, the range is designed to closely replicate historic cast iron styles using authentic sand cast manufacturing methods.

But this isn’t reclaimed guttering dragged out of a salvage yard.

Modern Apex Heritage systems combine traditional casting with current manufacturing standards, giving you cleaner consistency, reliable fitment, and far stronger durability across exposed UK weather conditions. The system is compliant with BS 460:2002 Cast Iron Rainwater Goods standards and is crafted for a service life exceeding 40 years with very little maintenance.

Cast iron gutters painted in the factory are available in eight Heritage colours such as Black, Anthracite Grey, Moss Green, and Oxide Red.

The painting process done at the factory provides a smoother and more durable finish while minimising the time spent on-site installing by as much as 60%. From repairing a historic building, rejuvenating a stone house, or installing rainwater systems for bigger architectural projects, our cast iron gutters can provide you with the perfect traditional feel.

Frequently Asked Questions

Do you offer next day delivery on cast iron guttering?

Yes. Black painted and primed Apex Heritage cast iron guttering is available for next working day delivery across the UK, subject to stock availability.

Can I order cast iron guttering samples?

Yes. We can provide free samples on selected cast iron guttering ranges to help with profile selection, colour matching, and project specification.

Do you supply custom RAL colours?

Yes. Custom colour cast iron guttering and rainwater systems are available on request. Most bespoke finishes are supplied within 7–10 working days.

What cast iron gutter profiles do you supply?

We supply Plain Half Round, Beaded Half Round, Victorian Ogee, Moulded Ogee, and Deepflow cast iron guttering alongside matching downpipes, hopper heads, brackets, and rainwater accessories.

Is cast iron guttering better than plastic?

Cast iron guttering is significantly stronger, more durable, and better suited to heritage and period properties compared with plastic guttering systems. It offers a more authentic appearance and can achieve a service life exceeding 40 years when maintained correctly.

Can cast iron guttering be used on listed buildings?

Yes. Apex Heritage cast iron guttering is widely used on listed buildings, conservation projects, churches, period homes, and traditional architectural developments where authentic detailing matters.

What finish options are available?

Our cast iron rainwater systems are available factory primed or factory painted in a range of Heritage colours including Black, Anthracite Grey, Moss Green, Chestnut Brown, White, and Oxide Red.

Do you accept returns?

Yes. Returns are accepted within 30 days of delivery. Orders returned within 14 days are usually accepted without a restocking charge. Returns after 14 days may be subject to a restocking fee depending on the products and order type.

How long does cast iron guttering last?

High quality cast iron guttering systems can last well over 40 years when installed and maintained correctly, making them one of the longest-lasting rainwater solutions available for traditional buildings.

How Cast Iron Guttering Can Change a Building

Proper cast iron rainwater changes more than drainage. It changes the whole appearance of the property. On period buildings especially, original rooflines and architectural detailing can easily get lost once modern plastic guttering is added over time. This London Victorian property was upgraded using traditional cast iron guttering and downpipes to restore a cleaner, more authentic heritage finish. The sharper detailing, deeper profiles, and genuine painted cast iron completely transform the façade without changing the building itself.