Lignum by Wealden Joinery
Precision-Engineered
Timber Windows
& Doors
For heritage and contemporary architecture. Sustainably sourced, manufactured to exacting standards, engineered to last generations.
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Why Lignum
Engineered for longevity
UK-Manufactured to Certified Standards
Every window and door is manufactured at our Crowborough facility using precision CNC machinery, hand finishing, and factory-applied microporous coatings. Certifications: BSI ISO 9001, PAS 24:2016, 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 24:2016 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
Sash Windows
Sash Windows
Casement Windows
Casement Windows
Entrance Doors
Entrance Doors
Bi-Fold Doors
Bi-Fold Doors
Alu-Clad Windows
Alu-Clad Windows
Sliding Doors
Sliding Doors
Lifestyle Context
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
Victorian Villa, Kent
Victorian Villa, Kent
View projectGeorgian Townhouse, Sussex
Georgian Townhouse, Sussex
View projectHoliday Let Window Replacement, Kent
Holiday Let Window Replacement, Kent
View projectGuarantees
Built to last a lifetime
Rot & Decay
Workmanship
Glazing
Ready to start your project?
Book a consultation to discuss your requirements, or use our AI estimator for an instant indicative quote.