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    Bespoke Sliding Sash Window Services

    We are a specialist timber sliding sash window company, crafting beautiful, handmade windows across three British-based workshops. To meet the needs of our customers, there are 3 main services that we offer:

    Sash Windows

    Complete renewal

    A popular option with many customers, and well suited to those who want the most extensive service. The main features of this service are:

    – Customisation options available upon request

    – Modern performance with traditional appearance

    – Comprehensive installation by our specialists

    Sash windows renewal

    Sash Windows

    Sash replacement

    Your sashes will be upgraded with bespoke sliding sashes that are fully painted. This option allows us to retain the traditional look and feel of your windows, while upgrading the quality and visual appeal.

    – Less disruptive than full replacement

    – Significant improvement in thermal performance

    – Authentic appearance with modern functionality

    Sash windows replacement

    Sash Windows

    Draught seal and overhaul

    This is our basic service and includes the renovation and improvement of your existing sashes. This is a complete overhaul service, so we will implement any and all improvements that we can.

    – Ideal quick fix

    – Reduces draughts

    – Preserves original character and materials

    Sash windows overhaul

    Our services and the quality of our windows is what sets us apart from other window companies. We take care of project manage, so you don’t need to worry about the minor details. Our in-house team takes care of the window manufacture and fitting processes, so we are fully accountable for our work.

    Types of Sliding Sash Windows We Offer

    Double-Hung The classic design where both upper and lower sashes are operational, sliding vertically within the frame. This provides maximum ventilation control, allowing you to open from the top, bottom, or both simultaneously. These windows offer authentic traditional appearance with full functionality.

    Single-Hung Featuring a fixed upper sash and operational lower sash, these windows maintain the traditional aesthetic with a simpler mechanism. With fewer moving parts, they offer a cost-effective solution while preserving the characteristic appearance of period properties.

    Victorian Style Distinguished by their decorative sash horns and typically featuring larger glass panes with fewer divides, Victorian sash windows add distinctive character to period properties. Our craftsmen faithfully reproduce all the defining features that made Victorian windows so coveted.

    Georgian Style Characterised by multiple smaller panes in each sash, often in “six-over-six” configurations, Georgian windows offer classic symmetrical appearance and traditional charm. Our authentic reproductions capture the elegance of this historical period.

    What do our customers think?

    Benefits of Sliding Sash Windows

    Authentic Craftsmanship Available throughout London, each window is handmade one of our three British workshops by skilled craftsmen using traditional joinery techniques. We pay meticulous attention to period details, enhancing your property’s character and value.

    Material & Construction Quality Our sliding sash windows are crafted from premium Scandinavian kiln-dried redwood, selected for its exceptional strength, stability, and resistance to warping. This superior timber ensures your windows maintain their appearance and functionality for decades.

    Modern Performance While maintaining traditional aesthetics, our windows incorporate modern innovations like double glazing, weatherproof seals, and smooth operating mechanisms that meet or exceed current building standards.

    Superior Ventilation Control The unique sliding design allows precise control over airflow. Open the top for warm air release, the bottom for cool air intake, or both for maximum circulation, with optional restrictors for secure ventilation.

    Enhanced Security Our sliding sash windows feature robust locking mechanisms and reinforced meeting rails, with modern security features discreetly integrated without compromising traditional appearance.

    Made in Britain

    Buying British

    At Wandsworth Sash Windows, we are proud to make all our sash and casement windows by hand on of our British-based workshops, we have one in East Sussex, one in the New Forest and one in Leamington Spa. We use traditional British joinery methods that achieve a beautiful finish every time. And your doors and windows will be perfect for your property, because they are made just for you.

    Join us on our mission to support homegrown craftsmanship and create local jobs – buy British.

    Frequently asked questions on sliding sash windows

    Sliding sash windows come in different styles, but whether you want single or double-hung, Victorian or Georgian, trying to choose which company to use on your project can be quite daunting. We have prepared some answers to commonly asked questions about sliding sash windows, and we invite you to read them through and let us know of any comments or questions you may have. For the most helpful advice, please contact us directly and we’ll be more than happy to talk through your profect with you in-person

    Matthew & Nathan Smith

    Properly cared-for sliding timber windows can last for decades, and many Victorian-era timber windows still grace homes across London today. Our newly crafted windows come with a comprehensive 10-year guarantee. To extend the lifespan of your timber windows, follow a few simple practices: use them regularly to keep mechanisms moving, clean them frequently (ideally every week), and repaint them every 5–7 years to protect the wood and maintain their appearance.

    Yes, they are highly energy efficient because they can be sealed tight.

    No, sash windows require the same level of maintenance as other windows.

    Manufacture and installation typically starts at at least £1,500 and very much depends on a variety of factors. For precise information please feel free to contact us.

    It depends on the specific circumstances of your project and our current lead time. Please talk to us to find out more for your specific requirements.

    Contact the Wandsworth Sash Windows team

    Talk to us – we can help with your sash window double glazing requirements. You are very welcome to pop into our showroom, which is based on Fulham Road opposite Stamford Bridge, the full address is 461-463 Fulham Road, London, SW6 1HL.

    You can call us on 02079247303 or email info@sashwindows.london.