Business Details
Premium Timber Windows and Doors London
Sashed is a distinguished manufacturer and installer of premium timber windows and doors, serving clients across London and the Home Counties. With a commitment to design-led craftsmanship, we combine heritage-inspired aesthetics with cutting-edge innovation to create bespoke solutions for both modern and period properties. Our team specialises in integrating sustainable practices, using responsibly sourced timber and implementing a zero-to-landfill policy. As a FENSA-registered company and recipient of Which? Trusted Trader and TrustMark accreditation, we uphold the highest standards of quality and compliance.Our comprehensive service includes expert consultation, seamless installation by skilled joiners, and aftercare support, ensuring every project meets exacting architectural and functional requirements. We pride ourselves on offering customisable design options, from wood species and glazing to ironmongery and finishes, tailored to individual preferences while maintaining strict adherence to conservation and building regulations.
Services
Timber sash windows
Casement windows
Bi-fold doors
Pivot doors
Sliding doors
French doors
Vacuum glazing
Conservation joinery
Heritage restoration
Custom ironmongery
Highlights and features
- 20+ years' experience in design-led timber joinery
- Zero-to-landfill sustainability policy with Ecologi partnerships
- FENSA-certified installations meeting UK building regulations
- Custom vacuum glazing offering 0.4W/mK U-values
- In-house team of FENSA-approved specialist joiners
Associations and certifications
- FENSA
- Which? Trusted Trader
- TrustMark
What people say
Exceptional attention to detail
Seamless installation process
Beautiful heritage designs
Excellent aftercare service
Innovative vacuum glazing solutions
Services
Timber sash windows
Our timber sash windows combine traditional craftsmanship with modern performance. Each window is manufactured from sustainably sourced wood with vacuum glazing options achieving up to 0.4W/mK U-values. Internal glazing prevents forced entry while maintaining slim 17mm glazing bars for heritage authenticity. We offer reproduction of period details including cords and weights mechanisms with factory-sprayed finishes in any RAL or Farrow & Ball shade.
Vacuum glazing
LandVac vacuum insulated glazing technology provides superior thermal efficiency at 0.4W/mK with 8.3mm slim profiles. The micro-pillar design eliminates double reflections while maintaining structural integrity. Available in Heritage and Pinnacle ranges, both comply with conservation requirements for listed buildings and offer 25+ year lifespan with 15-year manufacturer warranty.
Pivot doors
Engineered pivot doors up to 3.4m wide using FritsJurgens hinge systems support 500kg loads. Available in Accoya, Oak, or Meranti timber with multi-point locking systems. Features include weather-resistant seals, integrated lighting options, and compatibility with vacuum glazing. Bespoke configurations available with steel reinforcement for enhanced security.
Conservation joinery
Specialist conservation services for listed buildings and conservation areas. We replicate original timber details using traditional techniques while incorporating modern performance features. Services include planning permission assistance for heritage-sensitive areas and vacuum glazing compatibility for improved energy efficiency without compromising architectural integrity.
Bi-fold doors
Custom bi-fold doors with configurations up to eight panels using Centor hardware. Available in Accoya and Larch timbers with vacuum glazing options. Features include multi-point locking systems, thermal breaks and weather sealing for UK climates. Opening corner configurations eliminate structural posts for panoramic views.
Questions
What makes vacuum insulated glazing suitable for heritage buildings?
Vacuum glazing provides slim 8.3mm profiles that mimic single glazing aesthetics while achieving 0.4W/mK thermal performance, approved for conservation areas and listed buildings.
Can pivot doors be used in exposed locations?
Our engineered pivot doors incorporate multiple seals to withstand British weather, though we recommend setting them back from extreme exposure conditions.
How do your timber windows meet modern energy efficiency standards?
All windows meet UKCA standards with Part L compliance, offering options up to 0.79W/mK U-values through vacuum glazing and advanced sealing systems.
Do you work with listed buildings and conservation areas?
Yes, we specialise in heritage projects, providing like-for-like replacements that satisfy planning requirements while improving energy performance.
What security features are included in your doors?
All doors include internal glazing beads and multi-point locking systems, with PAS 24-certified options available for enhanced security.
Can I get custom sizes and finishes?
We manufacture made-to-measure products available in bespoke dimensions, with paint options from Farrow & Ball or custom stains and finishes.
Videos
