Crafted Elegance. Engineered to Endure.
Lignum timber casement windows combine timeless form with exceptional performance.
Whether enhancing a character property or elevating a contemporary new build, each window is made to order, designed for aesthetic harmony, thermal comfort, and architectural integrity.
Stormproof Timber Casements
Designed for the British climate, our stormproof casements are built with durability and detailing in mind, providing lasting beauty and warmth. Lignum casement windows offer specification flexibility with elegant sightlines and a choice of design profiles.
✓ Hand-finished joinery
✓ Outstanding thermal and acoustic insulation
✓ Traditional or contemporary profiles to suit project intent
Energy Efficient Technology
Natural timber frames are inherently insulated, enhanced further by high-performance glazing.
Better than triple glazing: we offer PassivGlas, the latest vacuum glazing technology that is thinner, warmer and quieter than triple-glazing. Ideal for both retrofit and low-energy builds.
Key Features at a Glance
Energy Efficient: Lignum Timber Casement Windows feature high-performance glazing and insulated frames, keeping your home warm in winter and cooler in summer.
Security Assured: Designed to meet PAS24:2022 security standards, Lignum windows offer peace of mind without compromising style.
Timber Sustainability: Ethically sourced materials ensure that your wooden casement windows are as environmentally friendly as they are beautiful.
Discreet High Security
Designed to protect without visual compromise.
Every window meets PAS24:2022 certification, with high-spec locking systems subtly integrated into the frame, meeting your security needs and regulatory standards.
Accreditations and Performance
PAS 24:2016
Security
Secured by
Design System
Document Q
Compliant
Document L
Compliant
Document M
Compliant
BS6375-1 2009
Weather Tightness
Customised Your Way
We offer a wide choice of handles and fittings, profiles and finishes to ensure our Casement windows adapt effortlessly to your design scheme, from period restoration to clean-lined minimalism.
✓ Architectural-grade hardware
✓ Any RAL colour or bespoke stain finish
✓ Custom detailing and sizing for seamless specification
Casement Window Furniture
We offer a wide range of handles, furniture and hardware to customise your windows.
Our period collection features the styles and finishes for a classic heritage look, and our range of contemporary design options provides a modern twist. All window handles and locks are rigorously tested and achieve PAS24:2022 certification for security.
Colours and Finishes
We’ve curated trending colours and natural wood stains to inspire your design, or you can choose any RAL colour for your casement windows
We also have a colour match service for that special shade.
Our Warranties
Rot & Fungal Decay
Workmanship
Paint Finish
Hardware
Glazing up to
A Finish That Lasts
We only use high-performance coatings designed by our industry-leading paint partners to withstand the harshest British weather. Our colour and wood stain finishes stay vibrant, resist flaking and fading, and are low-maintenance, so your windows look stunning for years to come.