Cast Iron Guttering & Downpipe System – Half Round & Ogee, Heritage & Listed Building Rainwater
Planning departments don't accept aluminium or uPVC as a like-for-like replacement on a listed building or in a conservation area — genuine cast iron is often the only rainwater goods a conservation officer will sign off, and for good reason: it's what was originally fitted, it lasts generations when maintained, and its heavier profile simply looks right on a Victorian or Georgian roofline. This is real cast guttering and downpipe, not an aluminium or uPVC lookalike — it ships primed ready for site painting or pre-finished in black. Genuine cast iron gutter and downpipe, not a lightweight imitation — significantly heavier and stiffer than aluminium equivalents Half round (100mm & 150mm) and moulded ogee (125x100mm) gutter profiles Round downpipe, 100mm, in plain or eared (for wall-strap fixing) pattern Supplied primed ready for top-coat, or pre-finished black Full fitting range — fascia brackets, running outlets, stop ends, 90° angles and unions Standard 1.83m (6ft) lengths matching original Victorian/Edwardian foundry sizing Specification Component Spec Finish options Half round gutter 100mm, 1.83m length Primed or Black Half round gutter (deep pattern) 150mm, 1.83m length Transit Primed Moulded ogee gutter 125x100mm, 1.83m length Primed or Black Round downpipe, plain 100mm, 1.83m length Primed or Black Round downpipe, eared 100mm, 1.83m length Primed or Black Fascia bracket, running outlet, stop end, 90° angle, union Sized to half round 100mm Primed or Black Material Cast iron Standard length 1.83m (6ft) Fixing Fascia bracket (half round) or rafter arm, per standard cast iron practice Frequently asked questions Why choose cast iron over aluminium or uPVC? Mostly a conservation requirement — listed buildings and properties in conservation areas often need like-for-like cast iron replacement as a condition of consent. Beyond that, many people specify it on period properties simply because the profile, weight and finish match the age of the building in a way lighter modern materials don't. Does primed finish need painting on site? Yes — primed castings are supplied ready for a proper topcoat once fixed, matched to your specification. Black finish arrives ready to fix with no further painting needed, though it can still be overpainted later. How is cast iron guttering fixed? Half round profiles hang from fascia brackets at standard 915mm centres; ogee profiles typically fix directly to the fascia board. Downpipes are secured with pipe nails or brackets at each socket and mid-length. Always follow the fitting manufacturer's fixing centres for wind loading in your area. What's the difference between plain and eared downpipe? Eared downpipe has cast lugs at the socket for a screw-fixed wall strap — the traditional heritage fixing method. Plain downpipe is fixed with separate pipe brackets. Match whichever your existing system or specification calls for. Is cast iron heavier to install than aluminium? Considerably — allow for proper support and expect two-person handling on longer runs and downpipe lengths. This is a genuine strength of the material for longevity, but plan installation accordingly. Fitting a period property? Our aluminium half round gutter system and aluminium ogee gutter system are lighter, lower-maintenance alternatives for projects where cast iron isn't a planning requirement — same profiles, different material and budget.
Half Round Gutter 100mm (1.83m), Half Round Gutter 150mm Deep (1.83m), Moulded Ogee Gutter 125x100mm (1.83m), Round Downpipe 100mm Plain (1.83m), Round Downpipe 100mm Eared (1.83m), Fascia Bracket, Running Outlet, Stop End, 90° Angle, Union