About John Diven & Co
Est. Moira, Northern Ireland
Premium Interior Products for
Distinctive Architectural Spaces
John Diven & Co is a specialist supplier of premium interior products, helping homeowners, self-builders, interior designers, architects, and property developers create beautifully detailed spaces throughout the UK and Ireland.
Who We Are
Curated with Purpose.
Specified with Expertise.
Based in Moira, Northern Ireland, we carefully curate a collection of high-quality interior products that combine timeless design, exceptional craftsmanship, and architectural excellence.
As a supply-only company, our focus is on sourcing and supplying exceptional products, supported by knowledgeable advice throughout the specification and purchasing process.
“Great interiors are built on exceptional details. We help designers, homeowners, and trade professionals create beautiful, timeless spaces that stand apart.”
— John Diven & Co
Our Collections
What We Supply
Flagship Range
Steelux® Steel Doors
Bespoke steel doors with slim sightlines and exceptional design flexibility — single, double, sliding, and fixed screen configurations.
Period Character
Panelled Interior Doors
Georgian, Victorian, and Edwardian-inspired designs for heritage renovations, period restorations, and high-end residential projects.
The Details
Architectural Ironmongery
Samuel Heath, Croft, Frank Allart, Turnstyle, From The Anvil, Heritage Brass, Burlington, Alexander & Wilkes, and Beau Hardware.
Surface & Form
Orac Decor Mouldings
Wall mouldings, panelling systems, ceiling cornices, coving, skirting boards, 3D wall panels, and decorative interior profiles.
Finishing Touches
Heritage Brass Electrical
Decorative switches and sockets in antique brass, satin brass, bronze, black, chrome, and nickel — coordinated with your ironmongery.
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Curated Collections
Our Clients
Trusted by Those Who Build & Design
Our Difference
Why John Diven & Co
Specialist Curation
Every product is hand-selected for quality, design integrity, and architectural relevance — not found in mainstream builders' merchants.
Product Expertise
Knowledgeable advice throughout specification and purchasing, helping you select the right products for your project and design vision.
Exclusive Ranges
Home of the exclusive Steelux® steel door collection, alongside carefully curated ranges from the industry's most respected manufacturers.
UK & Ireland Supply
Supplying premium interior products to homeowners, designers, and trade professionals throughout the UK and Ireland.
Showroom by Appointment
Visit our showroom in Moira, Northern Ireland to experience our products in person and discuss your project with our team.
Supply-Only Focus
Dedicated entirely to sourcing and supplying exceptional products — allowing us to focus on quality, range depth, and specification support.
Start Your Project
Let's Bring Your Vision to Life
Whether you're planning a self-build, home renovation, or luxury residential development, our team is here to help you specify the right products.
Get in Touch
