Business Details
14 Years
experience
Bespoke Timber Windows and Doors in London
Established in 2012, Wandsworth Sash Windows is a family-run business specialising in the design, manufacture, and installation of bespoke timber windows, doors, and joinery. Our expertise lies in crafting high-quality sash and casement windows, front doors, French doors, and bi-fold doors tailored to individual client specifications. With workshops in East Sussex and London, we combine traditional joinery techniques with modern technology to ensure precision and durability. Our team of FENSA-certified professionals delivers nationwide installations, prioritising energy efficiency and aesthetic harmony with period properties. We offer a comprehensive 10-year insurance-backed guarantee, reflecting our confidence in product longevity and service excellence.By maintaining full control over production and installation, we ensure seamless project management from concept to completion. Our commitment to sustainability is demonstrated through the use of FSC-certified timber and locally sourced materials. With over a decade of experience serving residential and commercial clients, we have completed projects ranging from single window replacements to large-scale renovations across London, the Home Counties, and southern England. Our approach combines technical expertise with a client-centric ethos, providing transparent consultations and tailored solutions without commission-based sales pressure.
Services
Sash Windows
Casement Windows
Front Doors
French Doors
Bi-fold Doors
Vacuum Insulated Glass
Joinery
Wardrobes
Furniture
Major Works
Details
- Year established: 2012
Highlights and features
- We offer over a decade of experience in bespoke window and door manufacturing
- Our products are handcrafted in the UK using sustainable timber
- We provide a 10-year insurance-backed guarantee
- Our team includes FENSA-certified professionals
- We offer a complete design and build service for major projects
Associations and certifications
- FENSA
What people say
Professional team
Dedicated installation
Quality craftsmanship
Timely completion
Period-appropriate designs
Services
Sash Windows
Our bespoke sash windows combine traditional craftsmanship with modern double glazing technology. Made from sustainably sourced Scandinavian redwood, these windows feature draught-proofing systems and customisable paint finishes. Each window undergoes rigorous quality checks to ensure perfect fit and thermal efficiency, maintaining period authenticity while meeting contemporary energy standards.
Casement Windows
Custom-designed casement windows offer superior ventilation and energy efficiency. Available in flush or stormproof designs, our timber frames incorporate high-performance glass units and traditional ironmongery options. The precision-engineered hinges ensure smooth operation while maintaining weather resistance and security.
Front Doors
Handcrafted hardwood front doors combine security with aesthetic appeal. Featuring multi-point locking systems and optional glazing panels, our doors are available in contemporary and period-appropriate designs. The natural insulating properties of utile hardwood ensure durability against UK weather conditions.
Bi-fold Doors
Space-enhancing bi-fold doors create seamless transitions between indoor and outdoor spaces. Constructed from sustainably sourced hardwood, these doors incorporate low-threshold designs for accessibility and advanced weatherproofing systems for year-round usability.
Joinery
From wardrobes to kitchen cabinetry, our bespoke joinery solutions maximise space efficiency while maintaining aesthetic consistency. Each piece is handcrafted in our UK workshops using traditional techniques, ensuring perfect integration with existing architectural features.
People
Matthew Smith
Co-Founder
Co-founder with over 15 years' experience in timber joinery. Oversees design and production operations, ensuring adherence to traditional craftsmanship standards while implementing modern efficiency improvements.
Nathan Smith
Co-Founder
Co-founder responsible for client relations and project management. Brings expertise in architectural compliance and conservation area regulations, ensuring all installations meet heritage requirements.
Questions
Do sash windows add property value?
Yes, our double-glazed sash windows enhance kerb appeal and energy efficiency, typically increasing property value by 5-10% according to recent surveys.
Can I get custom paint finishes?
We offer any RAL colour or brand-matched finish including Farrow & Ball, with spray-application for flawless results on both internal and external surfaces.
Are timber windows energy efficient?
Our windows exceed building regulations with U-values as low as 0.8W/m²K, combining traditional joinery with modern glazing technology for optimal thermal performance.
Do you work on listed buildings?
Yes, we specialise in heritage projects with experience on Grade II-listed properties, maintaining period authenticity while meeting modern efficiency standards.
What guarantees do you offer?
All products include a 10-year insurance-backed guarantee covering materials and workmanship, plus FENSA certification where applicable.
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