Rainwater Hoppers for Commercial Roofs
Ornate cast iron and cast aluminium rainwater hoppers supplied and installed as part of the commercial roof package. Standard patterns, dated hoppers, initialled crests and bespoke moulds for heritage projects — all sized to accept the attenuated flow from a green or blue-green roof above.
Ornate cast iron and cast aluminium rainwater hoppers installed alongside commercial green roofs. Bespoke crest and dating options, painted to any RAL colour.
Frequently asked questions
Can you make a hopper with a date or crest?
Yes — cast iron hoppers can be made to bespoke moulds with dates, initials, crests and heraldic detailing. Lead time is typically 8-10 weeks from artwork approval.
Do green roofs need larger hoppers?
No — a green roof buffers peak rainfall, so hoppers carry a lower peak flow than a bare deck. Sizing is calculated to BS EN 12056-3 for the exact roof build-up.
About The Green Roofer
The Green Roofer designs, supplies and installs green roofs for homes, developers and commercial buildings across the UK, with strong coverage in Essex, Southend-on-Sea, Chelmsford and London. We work on everything from a single garden shed or extension to large commercial flat roofs. See our residential green roof services or our commercial roofing services.
Our systems include sedum roofs, biodiverse and wildflower roofs, intensive roof gardens, blue roofs for stormwater attenuation and bio-solar roofs that combine planting with solar panels. Smaller projects are welcome too, including a green roof for your shed. We also supply green roof materials UK-wide for trade customers and DIY projects: complete systems such as the certified sedum green roof system, traditional green roof system, biodiverse green roof system and lightweight biodiverse system, plus individual components including sedum mats, wildflower mats, green roof substrate, drainage board, filter fleece, protection fleece and decorative cobbles.
Every project starts with a free site survey and a clear, no-obligation quote. We check roof structure, load capacity, waterproofing and drainage before recommending a system, and we offer ongoing green roof maintenance so the planting stays healthy year after year. Green roofs help manage rainwater, improve insulation, extend the life of the waterproofing beneath them and support biodiversity, including Biodiversity Net Gain requirements on new developments.
Planning a project? Read our guide to green roof planning permission. For commercial buildings we also supply and fit rainwater hoppers and roof flashings and trims. Learn the basics in what is a green roof, our living roof guide, extensive vs intensive green roofs and blue roof vs green roof. Working on drainage? See blue roof installation, blue roof supply and blue-green roofs.
Call 01702 964002 or email hello@thegreenroofer.co.uk for a free, no-obligation quote.