Timber Heritage Windows
Heritage timber sash windows are a refined balance of classic style and modern performance, ideal for both period homes and listed buildings. Crafted from premium timber, they feature elegant lambs’ tongue and putty-style mouldings, slender glazing bars, and refined horn details for timeless charm. Choose from traditional cords and weights or spiral balance mechanisms, with discreet angel locks for added child safety. Glazing options include 4mm single glass or slimline 14mm, delivering enhanced efficiency without compromising on authentic design.
30-year guarantee on timber
10-year guarantee on Paint finish
5-year warranty on ironmongery & seals
10 years on Workmanship
10 years on Glazing
Heritage Sash Windows for Period and Historic Buildings
Preserving the authentic character of your home is very important across London and the surrounding areas.
Period and historic buildings deserve particular attention to detail when considering replacement of windows. The Heritage range has been specifically designed for listed buildings where approval is required.
Our team have a wealth of experience in dealing with listed buildings and conservation areas. Heritage Windows are available in our sash or casement range, featuring lambs tongue and putty bead mouldings and bars, Heritage Ventlock for child safety, decorative horn detail, slim frame sections.
Timber materials and expert craftsmanship
We use only FSC-certified, responsibly sourced woods that are carefully selected to complement the architectural character of each project. By pairing high-quality materials with precision joinery, we create windows that look authentic, perform reliably, and last for decades.
Our Cornish workshop combines traditional skills with modern machining technology to ensure every frame meets exact specifications. Choose from a range of timber:
Redwood
A versatile softwood valued for its thermal properties and engineered stability. Redwood reduces the risk of warping or twisting, making it an excellent choice for painted wooden sash or casement windows where fine detailing and long-term performance are essential.
Red Grandis
A plantation-grown hardwood with a uniform grain, Red Grandis balances durability with design flexibility. It accepts both paint and stain finishes, offering a resilient option for wooden bay and casement windows that must withstand exposure while maintaining a refined appearance.
Accoya®
One of the most advanced modified timbers available, Accoya offers exceptional resistance to rot, outstanding stability, and impressive energy performance. It is a future-proof choice for double-glazed wooden windows, providing a low-maintenance, high-durability solution for both Heritage and contemporary builds.
We also offer
Timber Sash Windows
Traditional design with modern performance, suitable for period homes and new builds alike.
Our timber sash windows are crafted from high quality, sustainably sourced timber and designed to combine classic styling with modern standards. Featuring authentic detailing such as glazing bars, mouldings and architectural hardware, they deliver excellent thermal efficiency, acoustic insulation and PAS 24 security.
Available for straight or bay window configurations, they provide a durable, high performance solution that complements both traditional and contemporary properties.
Timber Casement Windows
Classic styling combined with modern performance for a wide range of property styles.
Our bespoke timber casement windows are crafted from high quality timber and designed to suit both traditional and contemporary homes.
They offer excellent thermal efficiency, strong security performance and smooth, reliable operation, all while maintaining clean, timeless lines. With flexible design options to complement different architectural styles, they provide a practical and attractive solution without compromising on performance.
See our range of Sash Window furniture
Timeless Style for Historic Homes
Preserve the timeless beauty of your period or listed property with timber heritage windows from Sash Windows London.
Our Heritage range ensures your home retains its character while meeting modern performance standards and regulations.
We handle every step, from design to installation, with care and expertise. Contact us today to arrange your free consultation and discover why Sash Windows London is trusted for heritage window solutions.
