Sliding Sash Windows
Traditional Charm, Modern Performance
Mumford & Wood timber Sliding Sash windows are designed to replicate the authentic character of traditional sash windows while delivering the thermal performance, security, and durability expected of modern homes.
Whether for a listed building, a conservation area, a period renovation, or a high-end new build, our Sliding Sash windows combine heritage-accurate detailing with advanced engineering to meet today’s building regulations without compromise.
Spring Sash Windows
In conservation areas, and in more modern buildings where the structure cannot accommodate the rebate of the traditional box sash, but where the spring balance is not considered visually authentic, we have designed a simple box cover that completely conceals the spring balance. This allows the vertical sliding sash window to be even more in keeping with traditional appearance and has the added advantage of allowing quick, easy and efficient maintenance.
Box Sash Windows
A favourite with architects, planning authorities and preservation societies, the Box Sash uses a traditional system of cords, weights, and heavy-duty ball-bearing pulleys and pre-stretched nylon cords. Distinctive deep moulded internal profiles are available in a variety of options with elegant glazing bars to match whichever style you choose.
Bespoke Sliding Sash Windows, Built For You
Timber Sliding Sash Windows
Every sliding sash window is designed with true sash proportions and period-correct detailing, making them ideally suited to heritage properties, conservation areas, and sympathetic renovations.
Available in a comprehensive range of glazing options, from traditional single glazing for historic applications through to high-performance triple glazing. Specialist glass solutions are also available to meet specific acoustic, thermal, and aesthetic requirements, ensuring that the window specification is tailored to each project's needs.
INDUSTRY LEADING EXPERIENCE
PROJECT TYPES
At Mumford & Wood, we're proud to collaborate with professionals on different projects that ensure compliance and long-term performance.
Multi Plot
Sliding sash windows that combine consistent quality, durability, and efficient installation for large-scale residential developments.
Renovations
Heritage timber sash windows designed to restore character while improving thermal performance and functionality.
New Builds
Modern engineered sliding sash windows that deliver traditional style with energy efficiency and low maintenance for contemporary homes.
Commercial
Secure sliding sash windows that meet building regulations and provide a professional finish for commercial properties.
Listed Areas
Slimline, conservation-friendly sash windows carefully crafted to comply with planning requirements while preserving historical integrity.
Timber Sliding Sash Windows
Tailored Solutions for Professionals
WHO WE WORK WITH
Architects
- Detailed technical specifications
- Bespoke design flexibility
- Performance data for planning and compliance
- Proven suitability for complex heritage schemes
Developers
- Consistent quality at scale
- Reliable lead times
- Durable finishes that reduce long-term maintenance
- Products designed to meet regulatory requirements
Builders & Contractors
- Smooth operation with multi-point locking systems
- Low-maintenance finishes for long-term reliability
- Hassle-free installation (professional installation available)
HIGHLIGHTED CASE STUDIES
REQUEST AN ESTIMATE
Start your journey with Mumford & Wood by requesting a no-obligation estimate from our expert team.
Your Questions, Answered
Frequently Asked Questions
Here you'll find concise answers to common questions about our product range and services. If you can't find what you're looking for, our expert team is always here to help.
