Lignum by Wealden Joinery · Trade supply
Sell timber
without becoming
a timber company.
Lignum is a certified timber window and door system, supplied to showrooms, installers and contractors on a supply-only basis. You own the customer, the survey and the installation. We manufacture, document and deliver — and you hold no stock, commit no capital and give up no floor space.
- No stock
- Made to order, no minimum
- Under 2 min
- To a live price on screen
- 30 years
- Against rot and fungal decay
Who we work with
Where would you like to start?
Can I sell this range?
Showrooms, installers and resellers
Stock the Lignum range under your own roof. Trade pricing, a quoting portal your team runs themselves, and a maker in Sussex who answers the phone.
Become a stockist →Can you supply my site?
Contractors and developers
Multi-plot developments, refurbishment schemes and commercial fit-out, manufactured to a programme and delivered to site in the order you need them.
Discuss a project →Will it pass?
Architects and specifiers
Sections, performance, conservation credentials and finishes — the detail you need to write us into a specification rather than a lifestyle photograph.
View specification →Why Lignum
Engineered for longevity
UK-Manufactured to Certified Standards
Every window and door is manufactured at our Rotherfield facility using precision CNC machinery, hand finishing, and factory-applied microporous coatings. Certifications: BSI ISO 9001, PAS 24:2022, Secured by Design, BS 6375, FSC® Chain of Custody.
Forest to Frame: Sustainable Timber Sourcing
FSC®-certified forests with responsible forestry practices. Timber locks away ~1 tonne of CO₂ per cubic meter. Lowest embodied carbon: 60 kgCO₂/m² vs uPVC (120) vs aluminium (180). Designed to last 60+ years with routine maintenance.
Security That Meets Police Standards
PAS 24:2022 testing simulates real burglary attempts. Multi-point locking with 3-minute minimum resistance. Laminated safety glass. Secured by Design approved. Document Q compliant for new builds.
Industry-Leading Guarantees
30-year timber warranty, 10-year workmanship guarantee, 15-year sealed glazing warranty, 10-year hardware operation. All guarantees transferable to new property owners.
Systems
Six product ranges
How it works
A calm, accountable process
Enquiry
Share your project aims and property type
Survey
On-site measurements and design options
Manufacture
Precision CNC with hand finishing
Installation
Clean, considerate site fitting
Aftercare
Maintenance guidance and support
Case Studies
Recent projects
Upgrading residential windows, East Sussex
View project
Holiday Let Window Replacement, Kent
View project
Transforming a failing back door, East Sussex
View projectGuarantees
Built to last a lifetime
Rot & Decay
Workmanship
Glazing
Let’s talk about your account
Tell us what you sell, where you sell it and roughly what volume you’re looking at, and we’ll come back with terms that fit. If you’re specifying rather than selling, the specification pack is a better place to start.