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Alumasc Apex 100mm (4") Half Round Cast Iron Gutter 1.83m Length - Black

Leading UK Suppliers of Heritage Rainwater

Traditional Cast Iron Rainwater Systems For Long-Term Performance.

Custom RAL Colours AvailableAlumasc Apex 100mm (4") Cast Iron Downpipe Eared Shoe - Black Next Day Delivery UK WideAlumasc Apex 100mm (4") x 1.83m Cast Iron Downpipe without Ears - Black Rated Excellent on TrustpilotAlumasc Apex 65mm (2.5") x 1.83m Cast Iron Downpipe with Ears - Primed
Alumasc Apex 65mm (2.5") x 1.83m Cast Iron Downpipe with Ears - Black

The Best Quality Cast Iron Rainwater In The UK

The cast iron rainwater system we supply combines traditional sand cast manufacturing with modern quality control standards to create a durable, long-lasting solution for heritage, residential, and commercial projects.

Designed to closely replicate historic guttering styles, Apex Heritage cast iron guttering suits both restoration work and new developments needing a more traditional architectural finish.

Next Working day delivery on popular ranges and finishes.

Contact us for a quote today.

Alumasc Apex 65mm (2.5") x 1.83m Cast Iron Downpipe with Ears - Black

About Us

Most guttering gets ignored until it fails.

Peeling paint. Sagging joints. Plastic warped after a few summers. Water running down brickwork where it shouldn’t. You see it everywhere once you start paying attention.

Cast iron’s different. Proper cast iron guttering has weight to it. Presence. It belongs on period homes, stone cottages, barn conversions, listed buildings, and solid modern builds where plastic never quite looks right. And honestly, once it’s installed properly, you stop thinking about it for decades.

That’s what we’re into.

Cast Iron Warehouse, established from Trade Warehouse, was built for people who actually care what goes on a building. Homeowners restoring older properties. Builders tired of flimsy systems. Architects chasing cleaner detailing. Developers wanting something which still looks good years later, not six months after handover.

We supply traditional cast iron guttering, downpipes, hopper heads, and heritage rainwater systems built using authentic sand casting methods and modern manufacturing standards. Strong stuff. Heavy duty. Made for British weather and long-term exterior use.

Our ranges include Half Round, Victorian Ogee, Beaded Half Round, and Moulded gutter profiles alongside factory primed and factory painted finishes in proper Heritage colours.

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

What We Offer

We supply complete cast iron rainwater systems built for heritage properties, renovation projects, self-builds, and modern developments wanting a more traditional finish. From standard gutter lengths through to specialist fittings and finishing details, the aim is simple — proper cast iron products which fit well, last decades, and actually suit the building they’re going on.

We supply systems suited to:

  • Listed buildings
  • Period property renovations
  • Barn conversions
  • New-build traditional homes
  • Commercial developments
  • Churches & heritage buildings
  • Garden buildings & extensions

We are part of Trade Warehouse (trading as Trade Circle Holdings Ltd), based in West London.