Business Details
Bespoke Sash Windows and Doors in London
Wandsworth Sash Windows is a family-run business established through a strategic partnership with an East Sussex joinery firm. We specialise in designing, manufacturing, and installing bespoke timber sash and casement windows, external doors, and custom joinery solutions. Our team of FENSA-certified professionals combines traditional craftsmanship with modern performance standards to deliver durable, energy-efficient products tailored to individual client needs.With workshops in East Sussex, the New Forest, and Leamington Spa, we maintain strict quality control throughout the production process. Our 10-year insurance-backed guarantee and collaborative approach ensure complete client satisfaction, from initial consultation to final installation. We serve properties across London, the Home Counties, and southern England, with a dedicated showroom in Fulham for product demonstrations and design consultations.
Services
Sash Windows
Casement Windows
Front Doors
French Doors
Bi-fold Doors
Joinery
Window Replacements
Door Installations
Timber Shutters
Conservation Projects
Highlights and features
- Over a decade of experience in bespoke window and door manufacturing
- Handmade products in UK-based workshops with quality timber
- FENSA-certified installation team ensuring regulatory compliance
- 10-year insurance-backed guarantee on all installations
- Collaborative approach from design to final installation
Associations and certifications
- FENSA
What people say
Impressed with professionalism
Excellent results
Dedicated team
Perfect fit
Timely completion
Services
Sash Windows
Our bespoke sash windows combine traditional craftsmanship with modern double glazing technology. Each window is handmade to order using sustainably sourced timber, ensuring perfect fit and longevity. The design maintains period authenticity while improving thermal efficiency and noise reduction for contemporary living requirements.
Casement Windows
Individually crafted casement windows offer enhanced security and superior insulation. Available in various styles and finishes, these windows can be tailored to match both modern and heritage properties. Our precision manufacturing ensures seamless integration with existing architectural features.
Front Doors
Handmade hardwood front doors provide security and aesthetic appeal. Choose from standard designs or create a fully custom entrance with decorative glass, bespoke ironmongery, and tailored dimensions. All doors incorporate modern insulation standards while maintaining traditional joinery techniques.
Bi-fold Doors
Timber bi-fold doors maximise natural light and create seamless indoor-outdoor transitions. Each set is precision-engineered for smooth operation and energy efficiency. Available in configurations to suit various property types, with custom finish options to complement interior and exterior decor.
Joinery
Full-service joinery solutions include wardrobes, furniture, and architectural elements. Our skilled craftsmen produce made-to-measure items using traditional techniques. Projects benefit from material expertise, precise measurements, and installation by experienced professionals to ensure perfect results.
People
Matthew Smith
Co-Founder
Matthew co-founded Wandsworth Sash Windows to address the gap in high-quality joinery services. With extensive industry experience, he oversees operations and maintains the company's commitment to traditional craftsmanship combined with modern performance standards.
Nathan Smith
Co-Founder
Nathan established the business alongside Matthew to deliver expertly crafted windows and doors. He manages client relationships and ensures every project maintains the company's reputation for excellence through rigorous quality control and customer-focused service.
Questions
What are the benefits of sash windows?
Sash windows offer timeless aesthetics, improved ventilation through top and bottom opening mechanisms, and enhanced property value while maintaining traditional architectural integrity.
Do I need planning permission for sash window replacements in London?
Most like-for-like timber sash replacements don't require planning permission, though listed buildings and conservation areas may need approval. We can advise based on your specific location.
What guarantees do you provide?
All installations include a 10-year insurance-backed guarantee, with FENSA certification provided for frame replacements to ensure compliance with building regulations.
Can you match existing window paint finishes?
We offer spray-applied paint finishes in any Farrow & Ball, Dulux, or Little Greene shade, allowing perfect colour matching for both interior and exterior surfaces.
What timber options are available?
Standard options include sustainably sourced hardwoods, with alternatives available upon request to suit specific aesthetic preferences and performance requirements.
How long does the installation process take?
Average lead times are eight weeks from order confirmation, with manufacturing and installation scheduled separately to maintain quality control throughout the process.
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Reviews (3)
Josh Woodgate
Apr 19, 2017
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Many thanks for a job well done to Osman our fitter and to Nathan in the office. I would highly recommend Wandsworth Sash Windows.
Louey Collier
Apr 03, 2017
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Very simple refurbishment of my office windows. They don't push you to the most expensive option but give you a variety of choices. I chose them on that basis when compared to other window firms and I was not disappointed.
Charlotte Foster
Mar 30, 2017
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I did not have the budget in place to carry out the full replace of my windows so I opted fr their draught proofing and overhaul option. Great level of service. I received my quotation quickly and they completed work within a coupl of weeks. I did have issue with one of the windows they overhauled but the fitter was happy to return to resolve.
