The Mercury 2 Column 30in finished in Little Greene’s ‘Pea Green’ with Unlacquered Brass valves and accessories.

Castrads

Completely Bespoke

Explore our core collection of cast iron radiators and discover how made-to-measure heating can bring the perfect blend of warmth and character to your home.

Browse Cast Iron Radiators

The Mercury 2 Column 30in finished in Little Greene’s ‘Pea Green’ with Unlacquered Brass valves and accessories.

Order A Brochure

Inside our Product Brochure, you’ll find full technical details to help you choose the right radiator for you. We’ve packed in as much in situ photography as possible, showing options for sizing and finishing your radiators, along with our most popular valves and brassware.

Order Your Brochure

The Old Radiator Company

Our treasure trove of reclaimed radiators is now available to buy online. Each antique piece can be fully restored in a range of finishes and is compatible with modern heating systems, including heat pumps.

Visit The Old Radiator Company

Start building your radiator

Our Radiator Builder allows you to customise every aspect of your radiator and add your valves and brassware.

Build Your Radiator

Cast iron colour samples

Get to know the look and feel of our finishes by ordering samples on real cast iron pieces delivered direct to your door.

Select your colour samples

Radiator refurbishment

Our refurbishment service gives a new lease of life to your time-worn antique radiators. We add new valves and accessories for energy efficient temperature control and a sleek finishing touch.

Start Your Restoration Project

Explore our products

Our complete product offering, from custom radiators to the tiniest component.

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Explore Our Radiator Families

Discover our carefully curated collection of cast iron radiator families, each offering unique style and exceptional craftsmanship.

Emmeline

Grace

Mercury

Rococo

Inspiring case studies

Our Inspiration series examines a range of houses, apartments and public spaces heated with Castrads radiators.

View All Case Studies

Choose how we can help you find the perfect radiator

Prefer a visit at home, a tour in our showroom, or a one-to-one consultation? Pick the option that suits you best.

Showrooms

We have showrooms in London, Manchester and New York. Visit us for expert advice and a tour of our full range.

Visit A Showroom

Consultations

One-to-one consultations at home, on site or online.

Book A Design Consultation

Castrads radiators are built once to serve for generations - combining traditional craftsmanship with forward-thinking sustainability.

Sustainable Heating, Built to Last

Specializing in bespoke cast iron radiators built to order in the UK, plus a curated collection of century-old reclaimed radiators, Castrads offers heating solutions with the longest lifespans and lowest carbon footprints.

Designed for Tomorrow's Heating

Cast iron's exceptional thermal mass makes it ideal for low-temperature heat pump systems, holding heat longer and reducing energy cycling. Every radiator is precisely sized to eliminate waste and maximize efficiency - whether you choose our bespoke collection or a beautifully restored vintage piece.

Circularity In Action

We practice what we preach: our London showroom runs on an air-source heat pump, our production facility recycles waste heat and water, and we only work with lower-impact electric foundries. Through integrations with sustainable heating platforms like Spruce and H2X, we make specifying low-carbon heating systems effortless for architects and heating engineers.

“From the minute we walked into the showroom we have been looked after throughout. The product is superb quality and far superior to many of their competitors.”