Bespoke Stormproof (Lipped) Casement Windows Manufactured in the UK
Our made-to-measure stormproof timber casement windows are handcrafted in the UK to provide exceptional weather resistance, thermal performance and long-term durability.
Featuring a traditional lipped sash design that overlaps the outer frame, these bespoke timber windows offer enhanced protection against wind, rain and exposure, making them ideal for coastal locations, rural properties and homes in exposed environments.
Manufactured using premium sustainably sourced timber and precision joinery techniques, each stormproof casement window is built to your exact sizes and specification while combining traditional appearance with modern performance.
Enhanced Weather Protection with Traditional Timber Styling
The defining feature of a stormproof casement window is the lipped sash, which sits proud of the outer frame to create an additional barrier against the elements.
Combined with advanced weather seals, high-performance glazing and modern locking systems, our stormproof windows provide excellent thermal efficiency, weather resistance and security.
Our stormproof timber casement windows are suitable for:
- Coastal properties
- Rural homes
- Exposed locations
- Traditional properties
- Modern homes
- Extensions and refurbishments
- Self-build homes
- Architect-designed projects
Why Choose Stormproof Casement Windows?
Stormproof timber windows remain one of the most popular choices for homeowners seeking traditional timber aesthetics combined with enhanced weather performance and modern energy efficiency.
Unlike flush casement windows, the lipped sash design provides additional protection against driving rain and harsh weather conditions while maintaining a classic timber window appearance.
Our stormproof casement windows offer:
- Enhanced weather protection
- Excellent thermal efficiency
- High-performance weather sealing
- Multi-point locking systems
- Traditional or contemporary styling
- Fully bespoke sizing and layouts
- Premium factory-applied finishes
- Long-term durability in exposed environments
Accoya® glazing beads and glazing bar profiles also provide exceptional dimensional stability and resistance to movement for enhanced long-term performance.
Design & Performance
Our bespoke stormproof timber windows are engineered for strength, stability and long-lasting weather performance using precision joinery construction and high-quality glazing systems.
The lipped sash overlaps the frame to improve weather resistance while maintaining a clean, traditional appearance suitable for both modern and period-style properties.
Combined with modern glazing systems and advanced weather seals, these windows provide excellent protection against heat loss, wind and moisture ingress.
Glazing System
Our stormproof windows are available with an externally beaded glazing system, providing a clean appearance and straightforward maintenance access.
A wide range of glazing bar layouts can be specified to suit both traditional and contemporary properties.
A 25mm glazing bar profile is bonded to both sides of the glass, creating the appearance of traditional individual panes while retaining the thermal benefits of a modern insulated glazing unit.
All glazing bars and glazing beads are manufactured from Accoya® for exceptional durability and stability.
Key Features
- Lipped sash design for enhanced weather protection
- High-performance weather sealing systems
- Excellent thermal efficiency with double or triple glazing
- Multi-point locking systems for improved security
- Externally beaded glazing system
- Custom glazing bar layouts with Accoya® bonded bars
- Suitable for exposed and coastal environments
- Fully bespoke sizing and detailing
- Manufactured from premium sustainably sourced timber
- Manufactured in the UK
Suitable for Projects Large & Small
We manufacture bespoke stormproof timber casement windows for projects throughout the UK, including:
- Single replacement windows
- Home extensions
- Self-build homes
- Coastal properties
- Rural renovations
- Full-house refurbishments
- Architect-designed homes
- Period-style developments
Timber Options
We offer a wide range of premium timber species suitable for bespoke external joinery applications, including:
- Redwood with hardwood cills and glazing beads as standard
- Accoya®
- Sapele
- European Oak
- Douglas Fir
- FSC® certified timber options
Additional timber species may also be available depending on project requirements.
Glazing Options
All glazing is manufactured to order to suit the thermal, acoustic and aesthetic requirements of your project.
Available glazing options include:
- 24mm double glazing as standard
- Triple glazing
- Acoustic glazing
- Laminated safety glass
- Toughened safety glass
- Decorative and obscured glazing
Hardware Options
We supply a full range of traditional and contemporary hardware options to complement your chosen window design.
Available options include:
- Multi-point locking systems
- Traditional and contemporary handle styles
- Friction hinges
- Butt hinges
- Trickle vents where required
Available finishes include chrome, satin chrome, brass, black, antique brass and specialist finishes on request.
Factory Finishing Options
Our stormproof casement windows can be factory-finished in over 45,000 colour options, allowing us to match virtually any traditional or contemporary design scheme.
Dual-colour and mixed-finish options are also available where contrasting internal and external finishes are required.
Each window is completed using our advanced spray-finishing system, consisting of:
- Preservative base coat
- Three spray-applied coats of microporous paint
- Breathable long-lasting protective finish
All finishing is applied in our purpose-built spray booth for smooth, consistent coverage and long-lasting protection against the elements.
Stained, clear and tinted finishes are also available to highlight the natural beauty of the timber.
Bespoke Joinery Capabilities
As a bespoke joinery manufacturer, we can produce fully customised stormproof timber windows tailored to your project requirements, including:
- Custom sash and frame profiles
- Bespoke glazing bar layouts
- Conservation-style detailing
- Large-format casement units
- CAD drawings for approval
- Profile matching for refurbishment projects
Lead Times
Typical lead times for bespoke stormproof timber casement windows are approximately 6–8 weeks depending on project size, specification and finishing requirements.
Estimated lead times are confirmed at quotation stage.
Request a Quote for Stormproof Casement Windows
Whether you require a single replacement window or a complete bespoke window package for a larger project, our team will be happy to assist.
Send us your drawings, measurements, schedules or project details and we will prepare a detailed quotation tailored to your specification.
Call us on 0191 535 9563 or email info@timbermouldingsdirect.co.uk.