What Castrads does

Castrads is a family-run UK manufacturer of custom cast iron radiators and related accessories, founded in 2005-2006 and headquartered in Stockport, Greater Manchester. The company designs and produces made-to-measure cast iron and steel column radiators across multiple series (Emmeline, Mercury, Grace, Rococo, and Florence), with proprietary finishing techniques including a RustBan lacquer and a portfolio of painted and bare-metal finishes, including licensed paints from Little Greene, Farrow & Ball, and Benjamin Moore. Technical assets include a MARC-approved heat loss calculator, a proprietary online Radiator Builder and Radiator Finder configuration tool, and compatibility with modern hydronic, one-pipe and two-pipe steam heating systems, including heat pumps.

The business operates a hybrid direct-to-consumer and trade channel model: an e-commerce storefront (castrads.com) with self-serve customization, physical showrooms in London, Manchester, New York (SoHo), and Zgorzelec (Poland), plus a trade account program offering preferential pricing and dedicated advisors. Revenue is generated predominantly through one-time sales of custom radiators, valves, brassware, accessories, color samples, and a refurbishment service for antique radiators covered by a 10-year Ironshield warranty. The company serves a horizontally segmented customer base of residential homeowners, trade professionals (plumbers, heating engineers), interior designers, architects, and historic property owners, with a wholly-owned US subsidiary (Castrads North America Inc.) and EU subsidiary (Castrads EU sp. z o.o.) supporting international sales. A sister company, The Old Radiator Company, addresses the reclaimed/antique radiator segment.

Name

Castrads

Legal name

Castrads Ltd.

Website

https://castrads.com

Company type

Private

Founded year

2005

Operating status

Operating

Headcount range

11–50 employees

Short description

Castrads is a family-run UK manufacturer of custom cast iron and steel radiators, sold direct-to-consumer and via trade accounts through showrooms in the UK, US, and Poland, serving homeowners, trade professionals, and historic-property projects.

Ownership category

akta.pro rank

Headquarters

HQ city

Stockport

HQ country

United Kingdom

HQ region

Europe

Offices6 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Custom Radiator Sales: Bespoke cast iron and steel column radiators sold as made-to-measure products with various finishes and configurations. Revenue is generated through one-time product sales with no recurring component.
2. Valves and Accessories: Complete range of radiator valves, brassware, pipe covers, brackets, and installation accessories sold alongside radiators to complete installations.
3. Radiator Restoration Services: Refurbishment service for restoring original cast iron radiators including painting, gasket replacement, and bush configuration changes. Covered by 10-year Ironshield warranty.
4. Color Samples: Physical samples of finishes and brassware delivered to customers for material selection before ordering radiators.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels7 records

Core offering

Castrads designs, manufactures, and sells custom-built cast iron and steel column radiators (Emmeline, Mercury, Grace, Rococo, and Florence series) with bespoke sizing, multiple column configurations, and a wide range of painted and bare metal finishes. The company complements its radiator range with radiator valves, brassware, accessories, and Elara bathroom towel rails, and offers an in-house refurbishment service for restoring antique cast iron radiators. Sales are made direct to homeowners via e-commerce, physical showrooms, and consultations, with a dedicated trade account program for trade professionals.

Product overview

Castrads is a family-run company offering custom-built cast iron radiators designed for lifetime use. The core product portfolio centers on cast iron radiators in four main series (Emmeline, Mercury, Grace, Rococo) and Florence steel column radiators, all available through an online Radiator Builder and Radiator Finder tool for customization. The business complements its radiator offerings with an extensive valves and accessories range (Windsor and Niva FIP valves, thermostatic radiator valves, steam valves), multiple finish collections (Signature Collection painted finishes and Bare Metal premium finishes including polishes and bronzes), and a refurbishment service for restoring antique radiators. A sister company, The Old Radiator Company, provides reclaimed vintage radiators. The company also offers professional tools including a heat loss calculator, technical drawings in multiple formats, and consultancy services through showrooms in multiple countries.

Differentiator

Problem solved

Functional benefit

Products and services

• Cast Iron Radiators (Emmeline, Mercury, Grace, Rococo) Custom-built cast iron radiators available in four series (Emmeline, Mercury, Grace, Rococo) with multiple column configurations and heights, designed for both hydronic and steam heating systems. Made-to-measure with custom paint and bare metal finishes for residential and historic property customers.
• Steam Radiators Cast iron radiators specifically designed for compatibility with one-pipe and two-pipe steam heating systems, the tried and tested material for steam heat, for residential and historic property customers.
• Florence Steel Column Radiators Steel column radiators including curved models, configured through the Florence Radiator Builder, providing a lighter-weight alternative to cast iron for residential installations.
• Elara Towel Rails Bathroom radiators and towel rails designed for bathroom heating solutions in residential properties.
• Radiator Valves (Windsor, Niva FIP, Thermostatic, Steam, Hydronic) Extensive range of radiator valves including Windsor valves, thermostatic radiator valves (TRV), one-pipe and two-pipe steam valves, and hydronic valves in various finishes, sold to complete radiator installations.
• Radiator Refurbishment Service Refurbishment service that restores time-worn antique radiators with new valves and accessories for energy-efficient temperature control, backed by the 10-year Ironshield warranty covering gaskets, bush configurations, and paint finishes.
• Showroom and On-Site Consultations One-to-one consultations at home, on site, or online across showrooms in London, Manchester, New York, and Zgorzelec (Poland), helping customers calculate heat requirements and advising on radiator sizing, placement, and specification.

Quantifiable outcome

• 10-year warranty on refurbished radiators covering gaskets, bush configurations, and paint finishes

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature6 records

Partnerships

One partnership is on record.

• The Old Radiator CompanycoreStrategic or Co-development PartnerSister company specializing in historic reclaimed cast iron radiators. Visit theoldradiatorcompany.co.uk for antique radiator inventory.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Jaga Radiatoren: Belgian premium radiator manufacturer with low-temperature and heat-pump friendly solutions, plus designer column and decorative radiators. Comparable in bespoke finishes and architectural/specification focus.
• Runtal North America: Manufacturer of premium panel, column and towel radiators including cast iron and steel offerings. Comparable in build-to-order customisation and presence in high-end US residential and contract segments.
• Arroll Ltd: UK-based manufacturer of cast iron radiators and steel column radiators with bespoke sizing and finish options. Directly competes with Castrads in the premium custom radiator category for residential and trade customers.
• Bisque Radiators: British designer radiator company offering bespoke steel and cast iron radiators with custom colours. Operates in the same premium custom-radiator niche as Castrads for residential and interior designer segments.
• The Radiator Company: UK radiator manufacturer and retailer selling designer and traditional radiators including cast iron styles. Comparable custom product range and multi-channel GTM (online + showroom-style).
• Reina Design Radiators: UK-based online retailer of designer and traditional column radiators including cast iron lookalikes. Competes with Castrads for online-direct residential trade and trim/accessory attach.
• Vogue UK Radiators: UK producer of vertical, horizontal and cast iron-style designer radiators with extensive finish options. Competes in the premium residential radiator segment with a similar configurable product.
• DQ Heating: UK designer radiator retailer and brand offering column, cast iron and steel radiators with custom colours. Direct overlap with Castrads on custom finishes and online configurator experience.

Broad incumbents

• Hoval Group: International heating, cooling and hot water solutions manufacturer with designer radiators including column and cast-iron offerings. Comparable in premium residential and specification channels, but operates across a much wider HVAC portfolio.
• Zehnder Group: European HVAC incumbent producing radiators, towel warmers and ventilation systems at scale. Overlaps with Castrads in decorative radiators though its portfolio spans heating, cooling and MVHR.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/castrads
• Xx.com/castrads
• Facebookfacebook.com/castrads

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Castrads